Milling device and milling method

Abstract

The invention discloses a milling device and a milling method.The milling device comprises a milling machine body and a thin-wall supporting structure, the thin-wall supporting structure comprises a clamping disc, the clamping disc is used for being clamped on the milling machine body so as to fix the thin-wall supporting structure, and a connecting rod is arranged on the clamping disc; a plurality of first motors which are annularly distributed are arranged on the connecting rod, the first motors are connected with the telescopic supporting rod, the first motors are used for controlling the telescopic supporting rod to stretch out and draw back so as to support the cylindrical thin-wall parts with different inner diameter sizes, and arc top stretching rods are movably connected to the two sides of the telescopic supporting rod correspondingly; the top of the telescopic supporting rod and the top of the arc top stretching rod are jointly connected with a supporting arc top, the arc top stretching rod is used for adjusting the arc top of the supporting arc top to be matched with the inner diameter of the cylindrical thin-wall part, and the telescopic supporting rod is further provided with a force measuring sensor used for sensing pressure and a vibrator used for relieving stress. According to the invention, the problem of milling deformation of cylindrical thin-walled parts with different sizes is effectively avoided.

Description

Technical Field

[0001] The invention relates to the field of milling processing, and in particular to a milling device and a milling method. Background Art

[0002] Milling is a mechanical processing method that uses a rotating multi-edged tool to cut the workpiece. Through the relative movement of the tool and the workpiece, the material is removed to form the desired shape, size and surface quality. It is one of the most common processing technologies in modern manufacturing and is widely used in the processing of metals, plastics, composite materials and other materials.

[0003] Cylindrical thin-walled structural parts have small wall thickness, light weight, and low bending / torsional rigidity. During traditional milling, local forces are likely to exceed the yield strength of the material, resulting in plastic deformation. The existing technology extracts and mills a solid cylinder that matches the inner diameter of the cylindrical thin-walled structural part, and sleeves the cylindrical thin-walled structural part on the solid cylinder, so that the solid cylinder supports the part during the milling process of the cylindrical thin-walled structural part to prevent it from being deformed due to excessive milling force. However, when processing cylindrical thin-walled structural parts of different sizes, it is often necessary to mill out solid cylinders of corresponding sizes for adaptive support, which has poor flexibility. At the same time, the solid cylinder only plays a supporting role, and stress concentration will still occur during the milling process, resulting in deformation. Summary of the invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a milling device and a milling method, aiming to provide a milling device that can adapt to the support of cylindrical thin-walled parts of different sizes, and at the same time can release stress in time during the milling process, thereby avoiding the milling deformation problem of cylindrical thin-walled parts.

[0005] To achieve the above-mentioned purpose, the first aspect of the present invention discloses a milling device, which is used for milling cylindrical thin-walled parts, and the milling device comprises: a milling machine body and a thin-walled support structure, the thin-walled support structure comprises a clamping disk, the clamping disk is used to be clamped on the milling machine body and then fix the thin-walled support structure, a connecting rod is arranged on the clamping disk, a plurality of first motors arranged in a ring are arranged on the connecting rod, the first motor is connected to a telescopic support rod, the first motor is used to control the telescopic support rod to be telescopic so as to support the cylindrical thin-walled parts with different inner diameters, arc top stretching rods are movably connected to the two sides of the telescopic support rod respectively, the telescopic support rod and the top of the arc top stretching rod are commonly connected with a support arc top, the arc top stretching rod is used to adjust the arc top of the support arc top to adapt to the inner diameter of the cylindrical thin-walled parts, and the telescopic support rod is also provided with a force sensor and a vibrator for sensing the pressure on the telescopic support rod; The milling device is configured to: in response to obtaining the inner diameter of the cylindrical thin-walled part, adjust the support rod and the arc top of the thin-walled support structure so that the length of the support rod and the curvature of the arc top are matched with the inner diameter of the cylindrical thin-walled part in turn, and the initial force measurement data of the force sensors on each of the telescopic support rods are matched; in response to the completion of the stage milling of the cylindrical thin-walled part, obtain the first force measurement data of the force sensor, obtain the first stress distribution of the cylindrical thin-walled part based on the first force measurement data, and control each of the vibrators to vibrate at a corresponding vibration frequency to release the stress of the cylindrical thin-walled part based on the first stress distribution.

[0006] Optionally, a first threaded area is provided on the telescopic support rod, the first threaded area is threadedly connected to a first threaded ring, and the arc top extension rods are movably connected on both sides of the first threaded ring; the first threaded ring drives the arc top extension rod to rise or fall to change the opening amplitude by spirally moving up and down in the first threaded area, thereby adjusting the curvature of the support arc top; wherein, the first threaded ring is movably connected to the arc top extension rod, and the arc top extension rod will not rotate together with the first threaded ring.

[0007] Optionally, a second motor is provided on the telescopic support rod, and the arc top extension rods are respectively connected to both sides of the second motor, and the second motor is used to drive the arc top extension rod to open to adjust the curvature of the support arc top.

[0008] Optionally, the initial force measurement data of the force sensors on the telescopic support rods are matched, including: The initial force measurement data of the force measurement sensors on the respective telescopic support rods are the same, or the difference between the initial force measurement data does not exceed a first preset error.

[0009] A second aspect of the present invention discloses a milling method, which is applied to any of the above-mentioned milling devices, comprising: Step S1, obtaining a first inner diameter of a cylindrical thin-walled part after internal processing, and obtaining a first telescopic length of the telescopic support rod and a first curvature of the support arc top according to the first inner diameter; Step S2, adjusting the telescopic support rod and the support arc top respectively according to the first telescopic length and the first curvature; sleeve the cylindrical thin-walled part on the telescopic support rod, and control the first motor to perform a first adjustment so that the initial force measurement data of the force measurement sensor corresponding to each telescopic support rod matches; Step S3, controlling the milling machine body to perform rough milling on the outer wall of the cylindrical thin-walled part; in response to the completion of the rough milling, obtaining second force measurement data of each of the force sensors, and obtaining a second stress distribution of the cylindrical thin-walled part according to the second force measurement data; obtaining a second vibration frequency corresponding to each of the vibrators according to the second stress distribution, and controlling each of the vibrators to vibrate the cylindrical thin-walled part with its corresponding second vibration frequency, so as to release the stress generated by the rough milling of the cylindrical thin-walled part; Step S4, controlling the milling machine body to perform finish milling on the outer wall of the cylindrical thin-walled part; in response to the completion of the finish milling, obtaining the third force measurement data of each of the force sensors, and obtaining the third stress distribution of the cylindrical thin-walled part according to the third force measurement data; according to the third stress distribution, obtaining the third vibration frequency corresponding to each of the vibrators, controlling each of the vibrators to vibrate the cylindrical thin-walled part with its corresponding third vibration frequency, so as to release the stress generated by the finish milling of the cylindrical thin-walled part, and obtain a finished cylindrical thin-walled part.

[0010] Optionally, when the cylindrical thin-walled part is subjected to vibration treatment in step S3 and step S4, the method further comprises: The cylindrical thin-walled parts are heated to a temperature of 140±10° C., then kept warm for 30-45 minutes, and air-cooled to room temperature.

[0011] Optionally, in step S2, adjusting the telescopic support rod and the support arc top respectively according to the first telescopic length and the first curvature includes: Adjusting the telescopic support rod to the first telescopic length; The arc top stretching rod corresponding to the support arc top is controlled to move up and down to drive the arc top stretching rod to open, thereby adjusting the curvature of the support arc top to the first curvature.

[0012] Optionally, in step S2, the cylindrical thin-walled part is sleeved on the telescopic support rod, and the first motor is controlled to perform a first adjustment so that the initial force measurement data of the force sensors corresponding to the telescopic support rods match each other, including: The cylindrical thin-walled part is sleeved onto the telescopic support rod so that the connecting rod is located at the center of the cylindrical thin-walled part; Each of the first motors is controlled to perform a first adjustment so that each of the telescopic support rods is slightly telescoped, thereby making the initial force measurement data of each of the force sensors the same.

[0013] Beneficial effects of the present invention: 1. The present invention can adapt to the support of cylindrical thin-walled parts with different inner diameters through the telescopic structure of the telescopic support rod and the curvature adjustment structure of the support arc top, which solves the problem of poor flexibility of the special support parts that need to be milled out in the prior art, greatly improves the flexibility of the thin-walled support structure, and reduces resource waste. In addition, compared with the single-point support, the support arc top of the present invention has a larger support range and avoids the problem of concentrated support force. 2. The present invention sets a force sensor, and when the cylindrical thin-walled parts are loaded on the thin-walled support structure, the initial force measurement data of the force sensors on each telescopic support rod are matched by adjusting the first motor. In this way, the magnitude of each support force in the cylindrical thin-walled parts can be consistent, so that the cylindrical thin-walled parts are supported uniformly, avoiding the situation of stress concentration caused by uneven support. 3. The present invention also sets a vibrator. Through the coordinated use of the vibrator and the force sensor, the first stress distribution of the cylindrical thin-walled parts can be obtained according to the first force measurement data when the stage milling process is completed. According to the first stress distribution, each vibrator is controlled to vibrate at a corresponding vibration frequency to release the stress of the cylindrical thin-walled parts. Vibrating at the corresponding frequency according to the stress distribution can ensure complete stress release and avoid deformation problems caused by stress concentration.

[0014] In summary, the present invention provides a milling device that can adapt to the support of cylindrical thin-walled parts of different sizes, and can release stress in time during the milling process, thereby avoiding the milling deformation problem of cylindrical thin-walled parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a thin-wall support structure corresponding to a milling device provided by a specific embodiment of the present invention; Figure 2 It is a schematic diagram of a top view of a thin-wall support structure corresponding to a milling device provided by a specific embodiment of the present invention; Figure 3 It is a structural schematic diagram of a telescopic support rod provided by a specific embodiment of the present invention; Figure 4 It is a schematic flow chart of a milling method provided by a specific embodiment of the present invention. DETAILED DESCRIPTION

[0016] The present invention discloses a milling device and a milling method. Those skilled in the art can refer to the content of this article and appropriately improve the technical details to achieve the same. It should be particularly noted that all similar substitutions and modifications are obvious to those skilled in the art and are considered to be included in the present invention. The method and application of the present invention have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the method and application described herein without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention.

[0017] The applicant has found through research that cylindrical thin-walled structural parts have a small wall thickness, light weight, and low bending / torsional rigidity. During traditional milling, local forces are likely to exceed the yield strength of the material, resulting in plastic deformation. At the same time, during the milling process of cylindrical thin-walled structural parts, the stress generated by milling also needs to be released in time to avoid deformation caused by stress concentration. The prior art extracts and mills a solid cylinder that matches the inner diameter of the cylindrical thin-walled structural part, and sleeves the cylindrical thin-walled structural part on the solid cylinder, so that the solid cylinder supports the part during the milling process of the cylindrical thin-walled structural part to avoid deformation caused by excessive milling force. However, when processing cylindrical thin-walled structural parts of different sizes, it is often necessary to mill out solid cylinders of corresponding sizes for adaptive support, which has poor flexibility. At the same time, the solid cylinder only plays a supporting role, and stress concentration will still occur during the milling process, resulting in deformation.

[0018] Therefore, the embodiment of the present invention provides a milling device, which is used for milling cylindrical thin-walled parts, such as Figure 1-3 As shown, the milling device includes: a milling machine body and a thin-walled support structure, the thin-walled support structure includes a clamping disk 1, the clamping disk 1 is used to be clamped on the milling machine body to fix the thin-walled support structure, a connecting rod 2 is arranged on the clamping disk 1, and a plurality of first motors 3 arranged in a ring are arranged on the connecting rod 2, the first motor 3 is connected to the telescopic support rod 4, the first motor 3 is used to control the telescopic support rod 4 to extend and retract to support cylindrical thin-walled parts with different inner diameters, the two sides of the telescopic support rod 4 are respectively movably connected with arc top stretching rods 5, the tops of the telescopic support rod 4 and the arc top stretching rod 5 are commonly connected with a support arc top 6, the arc top stretching rod 5 is used to adjust the arc top of the support arc top 6 to adapt to the inner diameter of the cylindrical thin-walled part, and the telescopic support rod 4 is also provided with a force sensor 7 and a vibrator 8 for sensing the pressure on the telescopic support rod 4.

[0019] The milling device is configured as follows: in response to obtaining the inner diameter of the cylindrical thin-walled part, adjusting the support rods and arc tops of the thin-walled support structure so that the length of the support rods and the curvature of the arc tops match the inner diameter of the cylindrical thin-walled part in turn, and matching the initial force measurement data of the force sensors 7 on each telescopic support rod 4; in response to completion of the stage milling of the cylindrical thin-walled part, obtaining the first force measurement data of the force sensor 7, obtaining the first stress distribution of the cylindrical thin-walled part based on the first force measurement data, and controlling each vibrator 8 to vibrate at a corresponding vibration frequency to release the stress of the cylindrical thin-walled part based on the first stress distribution.

[0020] It should be noted that the embodiment of the present invention can adapt to the support of cylindrical thin-walled parts with different inner diameters through the arrangement of the telescopic support rod 4 and the support arc top 6, and has extremely high flexibility. At the same time, the embodiment of the present invention is also provided with a force sensor 7, which can adjust the telescopic support rod 4 by sensing the pressure on the telescopic support rod 4 so that the telescopic support rod 4 can evenly support the cylindrical thin-walled parts to avoid stress concentration. At the same time, since the stress changes of the cylindrical thin-walled parts during the milling process will act on the telescopic support rod 4, the stress distribution of the cylindrical thin-walled parts during the milling process can also be obtained through each force sensor 7, and then the vibrator 8 is used to perform vibration at a specific frequency to eliminate the corresponding stress, so that the cylindrical thin-walled parts will not be deformed due to excessive stress concentration.

[0021] It is worth mentioning that the milling of cylindrical thin-walled parts is generally carried out relatively to the inside. At this time, the thin wall has not yet been formed and it will not be easily deformed, so normal milling is sufficient.

[0022] In this specific embodiment, Figure 1-3 As shown, the telescopic support rod 4 is provided with a first threaded area 9, which is threadedly connected to a first threaded ring 10, and arc top stretching rods 5 are movably connected on both sides of the first threaded ring 10; the first threaded ring 10 drives the arc top stretching rod 5 to rise or fall to change the opening amplitude by spirally moving up and down in the first threaded area 9, thereby adjusting the curvature of the supporting arc top 6. The first threaded ring 10 is movably connected to the arc top stretching rod 5, and the arc top stretching rod 5 will not rotate with the first threaded ring 10.

[0023] It should be noted that the embodiment of the present invention can adjust the curvature of the supporting arc top 6 by a simple structure, which has the advantages of being simple and efficient.

[0024] In another specific embodiment, a second motor is provided on the telescopic support rod 4 , and arc top stretching rods 5 are connected to both sides of the second motor respectively. The second motor is used to drive the arc top stretching rods 5 to open, thereby adjusting the curvature of the support arc top 6 .

[0025] It should be noted that if a motor is used to adjust the curvature of the support arc top 6, full automation and high-precision adjustment can be effectively achieved.

[0026] In this specific embodiment, the initial force measurement data of the force sensors 7 on each telescopic support rod 4 are matched including: The initial force measurement data of the force sensors 7 on each telescopic support rod 4 are the same, or the difference between each initial force measurement data does not exceed a first preset error.

[0027] It should be noted that the same initial force measurement data of the force sensors 7 on each telescopic support rod 4 indicates that the supporting force inside the cylindrical thin-walled part is uniform, and setting the first preset error avoids the problem of over-adjustment.

[0028] Based on the above-mentioned milling device, the embodiment of the present invention further provides a milling method, such as Figure 4 As shown, the method includes: Step S1, obtaining a first inner diameter of a cylindrical thin-walled part after internal processing, and obtaining a first telescopic length of the telescopic support rod and a first curvature of the support arc top according to the first inner diameter.

[0029] It should be noted that the first telescopic length should be compatible with the first inner diameter, and the first curvature should be the same as the curvature of the inner diameter of the cylindrical thin-walled part.

[0030] Step S2, adjusting the telescopic support rod and the support arc top respectively according to the first telescopic length and the first curvature; sleeve the cylindrical thin-walled part on the telescopic support rod, and control the first motor to perform a first adjustment so that the initial force measurement data of the force sensors corresponding to each telescopic support rod match.

[0031] In this specific embodiment, in step S2, adjusting the telescopic support rod and the support arc top respectively according to the first telescopic length and the first curvature includes: Adjust the telescopic support rod to a first telescopic length; The arc top extension rod corresponding to the supporting arc top is controlled to move up and down to drive the arc top extension rod to open, thereby adjusting the curvature of the supporting arc top to the first curvature.

[0032] In this specific embodiment, in step S2, the cylindrical thin-walled part is sleeved on the telescopic support rod, and the first motor is controlled to perform a first adjustment so that the initial force measurement data of the force sensors corresponding to the telescopic support rods match each other, including: Sleeve the thin-walled cylindrical part onto the telescopic support rod so that the connecting rod is located at the center of the thin-walled cylindrical part; Each first motor is controlled to perform a first adjustment so that each telescopic support rod is slightly telescoped, thereby making the initial force measurement data of each force measurement sensor the same.

[0033] It should be noted that this can ensure that the interior of the cylindrical thin-walled parts is supported evenly to avoid concentrated support force. During the milling process of the cylindrical thin-walled parts, different support forces will cause deviations in milling accuracy, thereby reducing the quality of the finished product.

[0034] Step S3, control the milling machine body to perform rough milling on the outer wall of the cylindrical thin-walled part; in response to the completion of the rough milling, obtain the second force measurement data of each force sensor, and obtain the second stress distribution of the cylindrical thin-walled part according to the second force measurement data; according to the second stress distribution, obtain the second vibration frequency corresponding to each vibrator, control each vibrator to vibrate the cylindrical thin-walled part with its corresponding second vibration frequency, and release the stress generated by the rough milling of the cylindrical thin-walled part.

[0035] Step S4, control the milling machine body to perform finish milling on the outer wall of the cylindrical thin-walled part; in response to the completion of the finish milling, obtain the third force measurement data of each force sensor, and obtain the third stress distribution of the cylindrical thin-walled part according to the third force measurement data; according to the third stress distribution, obtain the third vibration frequency corresponding to each vibrator, control each vibrator to vibrate the cylindrical thin-walled part with its corresponding third vibration frequency, release the stress generated by the finish milling of the cylindrical thin-walled part, and obtain the finished cylindrical thin-walled part.

[0036] In this specific embodiment, when the cylindrical thin-walled part is subjected to vibration treatment in step S3 and step S4, the method further includes: Heat the cylindrical thin-walled parts to 140±10℃, then keep them warm for 30-45min and air cool them to room temperature.

[0037] It should be noted that, through heat treatment combined with vibration treatment, stress can be released more quickly, the processing time of cylindrical thin-walled parts can be reduced, and the processing efficiency of cylindrical thin-walled parts can be increased.

[0038] The embodiment of the present invention can adapt to the support of cylindrical thin-walled parts with different inner diameters through the telescopic structure of the telescopic support rod and the curvature adjustment structure of the support arc top, solving the problem of poor flexibility in the prior art that special support parts need to be milled out, greatly improving the flexibility of the thin-walled support structure and reducing resource waste. In addition, compared with single-point support, the support arc top of the embodiment of the present invention has a larger support range and avoids the problem of concentrated support force.

[0039] The embodiment of the present invention provides a force sensor, and when the cylindrical thin-walled part is loaded on the thin-walled support structure, the first motor is adjusted to match the initial force measurement data of the force sensors on each telescopic support rod. In this way, the magnitude of each support force in the cylindrical thin-walled part can be made consistent, so that the cylindrical thin-walled part is supported evenly, and stress concentration caused by uneven support can be avoided.

[0040] The embodiment of the present invention further provides a vibrator. By using the vibrator in conjunction with the force sensor, the first stress distribution of the cylindrical thin-walled part can be obtained according to the first force measurement data when the stage milling process is completed. According to the first stress distribution, each vibrator is controlled to vibrate at a corresponding vibration frequency to release the stress of the cylindrical thin-walled part. Vibrating at a corresponding frequency according to the stress distribution can ensure that the stress is completely released, thereby avoiding deformation problems caused by stress concentration.

[0041] In summary, the embodiment of the present invention provides a milling device that can adapt to the support of cylindrical thin-walled parts of different sizes, and can release stress in time during the milling process, thereby avoiding the milling deformation problem of cylindrical thin-walled parts.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A milling device, used for milling cylindrical thin-walled parts, characterized in that: The milling device comprises: a milling machine body and a thin-walled support structure, the thin-walled support structure comprises a clamping disk, the clamping disk is used to be clamped on the milling machine body and thus fix the thin-walled support structure, a connecting rod is arranged on the clamping disk, a plurality of first motors arranged in a ring are arranged on the connecting rod, the first motor is connected to the telescopic support rod, the first motor is used to control the telescopic support rod to be telescopic so as to support the cylindrical thin-walled parts with different inner diameters, the two sides of the telescopic support rod are respectively movably connected with an arc top stretching rod, the telescopic support rod and the top of the arc top stretching rod are jointly connected with a support arc top, the arc top stretching rod is used to adjust the arc top of the support arc top to adapt to the inner diameter of the cylindrical thin-walled parts, and the telescopic support rod is also provided with a force sensor and a vibrator for sensing the pressure on the telescopic support rod; The milling device is configured to: in response to obtaining the inner diameter of the cylindrical thin-walled part, adjust the support rod and the arc top of the thin-walled support structure so that the length of the support rod and the curvature of the arc top are matched with the inner diameter of the cylindrical thin-walled part in turn, and the initial force measurement data of the force sensors on each of the telescopic support rods are matched; in response to the completion of the stage milling of the cylindrical thin-walled part, obtain the first force measurement data of the force sensor, obtain the first stress distribution of the cylindrical thin-walled part based on the first force measurement data, and control each of the vibrators to vibrate at a corresponding vibration frequency to release the stress of the cylindrical thin-walled part based on the first stress distribution.

2. The milling device according to claim 1, characterized in that A first threaded area is provided on the telescopic support rod, and the first threaded area is threadedly connected to a first threaded ring, and the arc top extension rods are movably connected on both sides of the first threaded ring; the first threaded ring drives the arc top extension rod to rise or fall to change the opening amplitude by spirally moving up and down in the first threaded area, thereby adjusting the curvature of the support arc top; wherein, the first threaded ring is movably connected to the arc top extension rod, and the arc top extension rod will not rotate together with the first threaded ring.

3. The milling device according to claim 1, characterized in that A second motor is arranged on the telescopic support rod, and the arc top extension rods are respectively connected to the two sides of the second motor. The second motor is used to drive the arc top extension rods to open to adjust the curvature of the support arc top.

4. The milling device according to claim 1, characterized in that The initial force measurement data of the force sensors on each of the telescopic support rods are matched including: The initial force measurement data of the force measurement sensors on the respective telescopic support rods are the same, or the difference between the initial force measurement data does not exceed a first preset error.

5. A milling method, characterized in that: The milling device as claimed in any one of claims 1 to 4, comprising: Step S1, obtaining a first inner diameter of a cylindrical thin-walled part after internal processing, and obtaining a first telescopic length of the telescopic support rod and a first curvature of the support arc top according to the first inner diameter; Step S2, adjusting the telescopic support rod and the support arc top respectively according to the first telescopic length and the first curvature; sleeve the cylindrical thin-walled part on the telescopic support rod, and control the first motor to perform a first adjustment so that the initial force measurement data of the force measurement sensor corresponding to each telescopic support rod matches; Step S3, controlling the milling machine body to perform rough milling on the outer wall of the cylindrical thin-walled part; in response to the completion of the rough milling, obtaining second force measurement data of each of the force sensors, and obtaining a second stress distribution of the cylindrical thin-walled part according to the second force measurement data; obtaining a second vibration frequency corresponding to each of the vibrators according to the second stress distribution, and controlling each of the vibrators to vibrate the cylindrical thin-walled part with its corresponding second vibration frequency, so as to release the stress generated by the rough milling of the cylindrical thin-walled part; Step S4, controlling the milling machine body to perform finish milling on the outer wall of the cylindrical thin-walled part; in response to the completion of the finish milling, obtaining the third force measurement data of each of the force sensors, and obtaining the third stress distribution of the cylindrical thin-walled part according to the third force measurement data; according to the third stress distribution, obtaining the third vibration frequency corresponding to each of the vibrators, controlling each of the vibrators to vibrate the cylindrical thin-walled part with its corresponding third vibration frequency, so as to release the stress generated by the finish milling of the cylindrical thin-walled part, and obtain a finished cylindrical thin-walled part.

6. The milling method according to claim 5, characterized in that: When the cylindrical thin-walled part is subjected to vibration treatment in step S3 and step S4, the method further comprises: The cylindrical thin-walled parts are heated to a temperature of 140±10° C., then kept warm for 30-45 minutes, and air-cooled to room temperature.

7. The milling method according to claim 5, characterized in that: In step S2, adjusting the telescopic support rod and the support arc top respectively according to the first telescopic length and the first curvature includes: Adjusting the telescopic support rod to the first telescopic length; The arc top stretching rod corresponding to the support arc top is controlled to move up and down to drive the arc top stretching rod to open, thereby adjusting the curvature of the support arc top to the first curvature.

8. The milling method according to claim 5, characterized in that: In step S2, the cylindrical thin-walled part is sleeved on the telescopic support rod, and the first motor is controlled to perform a first adjustment so that the initial force measurement data of the force measurement sensors corresponding to the telescopic support rods match each other, including: The cylindrical thin-walled part is sleeved onto the telescopic support rod so that the connecting rod is located at the center of the cylindrical thin-walled part; Each of the first motors is controlled to perform a first adjustment so that each of the telescopic support rods is slightly telescoped, thereby making the initial force measurement data of each of the force sensors the same.

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