Grinding equipment for aviation parts

Abstract

The invention relates to the technical field of polishing equipment, and discloses grinding equipment for aeronautical parts, which comprises a main body assembly comprising a grinding machine main body, and a driving shaft is fixed at the output end of the grinding machine main body; the grinding assembly is arranged on the grinding machine body and comprises a grinding piece arranged at the end of the driving shaft and a sun gear fixed to the end of the driving shaft, a reversing frame is fixed to the bottom of the sun gear, a reversing clamp is fixed in the reversing frame, a reversing ball is arranged in the reversing frame, a reversing groove is formed in the reversing ball, and the reversing clamp is connected with the reversing ball. And the reversing clamp can slide in the reversing groove. The grinding device has the beneficial effects that by arranging the grinding assembly, the first grinding disc and the second grinding disc can be flexibly attached to the arc shape of the surface of a part, and uniform and efficient grinding is achieved; and through cooperation of the adjusting piece and the auxiliary piece, the first grinding disc can independently and accurately grind a specific point, and excessive grinding of a surrounding area is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of polishing equipment, and particularly to a grinding device for aviation parts. Background Art

[0002] In the field of aviation manufacturing, the grinding quality of parts plays a crucial role in the safety, reliability and performance of aircraft. Taking the aircraft fuselage as an example, the grinding treatment on its surface not only affects the appearance, but is also closely related to key indicators such as aerodynamic performance and fatigue life. The aircraft fuselage often has convex or concave arc structures. However, most of the existing grinding devices are handheld grinders, and the grinding surface is in a flat shape. This structure makes it difficult for the grinding device to closely fit the arc structure on the surface of the aircraft fuselage, resulting in problems such as uneven grinding and low grinding efficiency during the grinding process, and unable to meet the high-precision grinding requirements of aviation parts. At the same time, in actual grinding operations, there are often stubborn grinding points on the surface of aviation parts. For such small-area grinding requirements, the existing grinding devices cannot achieve precise grinding of specific points. Due to the relatively large area of the grinding disc, when dealing with stubborn grinding points, the grinding disc will inevitably act on the surrounding areas that do not need to be ground, resulting in over-grinding of these areas, thus affecting the overall quality and performance of the parts; in addition, if a small grinding disc is to be replaced to achieve separate grinding of small-area points, not only the operation is cumbersome, time-consuming and laborious, but also the stability of the device may be reduced due to frequent replacement of components, further reducing the grinding efficiency and quality. Summary of the Invention

[0003] In view of the above problems existing in the existing grinding devices for aviation parts, the present invention is proposed.

[0004] Therefore, the problems to be solved by the present invention are to make the handheld grinder fit the arc surface of aviation parts (such as the aircraft fuselage) to achieve uniform and efficient grinding; precisely process the stubborn grinding points on the surface of the parts to avoid over-grinding of the surrounding areas; simplify the operation of replacing the small grinding disc and improve the stability and grinding efficiency of the device.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A grinding device for aviation parts, which includes a main body assembly, including a grinder main body, and a drive shaft is fixed to the output end of the grinder main body; The grinding assembly is arranged on the main body of the grinding machine and includes a grinding member arranged at the end of the drive shaft, including a sun gear fixed to the end of the drive shaft. A reversing frame is fixed to the bottom of the sun gear, a reversing clip is fixed inside the reversing frame, a reversing ball is arranged inside the reversing frame, a reversing groove is formed inside the reversing ball, the reversing clip can slide inside the reversing groove, two reversing clips are arranged on the surface of the reversing ball, and the two reversing clips are arranged oppositely. A support shell is fixed to one side of the other reversing clip, a first grinding disc slides inside the support shell, and a compression spring is arranged inside the first grinding disc.

[0006] As a preferred solution of the grinding equipment for aviation parts according to the present invention, wherein: the grinding assembly further includes an auxiliary member arranged on one side of the main body of the grinding machine, including a sealing shell fixed to one side of the main body of the grinding machine, a toothed ring slides inside the sealing shell, a star gear is arranged inside the toothed ring, the toothed ring and the star gear are meshed, and the star gear and the sun gear are meshed.

[0007] As a preferred solution of the grinding equipment for aviation parts according to the present invention, wherein: the auxiliary member further includes a positioning ring fixed to the top of the toothed ring, a support disc is rotatably connected inside the positioning ring, a limiting ring is fixed to the surface of the support disc, the limiting ring is rotatably connected inside the positioning ring, and a rotating shaft is fixed to the top of the star gear.

[0008] As a preferred solution of the grinding equipment for aviation parts according to the present invention, wherein: the auxiliary member further includes a connecting disc fixed to the bottom of the star gear, and a second grinding disc is arranged below the connecting disc.

[0009] As a preferred solution of the grinding equipment for aviation parts according to the present invention, wherein: the grinding assembly further includes a sealing member arranged inside the sealing shell, including a partition plate fixed inside the sealing shell, and a positioning groove is formed inside the partition plate.

[0010] As a preferred solution of the grinding equipment for aviation parts according to the present invention, wherein: the sealing member further includes an orientation sleeve sliding on the surface of the reversing frame, a return spring is fixed to the top of the orientation sleeve, a push rod is fixed to the bottom of the orientation sleeve, the bottom of the push rod is fixed to the inner bottom wall of the first grinding disc, and a corrugated pipe is fixed to the bottom of the partition plate.

[0011] As a preferred solution of the grinding equipment for aviation parts according to the present invention, wherein: the grinding assembly further includes an adjusting member arranged on the sealing shell, including a slider fixed to the surface of the toothed ring, an adjusting ring is fixed to the surface of the slider, the adjusting ring slides on the surface of the sealing shell, and the slider slides inside the sealing shell.

[0012] As a preferred embodiment of the grinding device for aviation parts of the present invention, the following is provided: An adjusting rod is fixed to the top of the adjusting ring, a stabilizing rod is fixed to the surface of the grinder body, the adjusting rod slides within the stabilizing rod, a support block is fixed to one side of the adjusting rod, a tension spring is fixed to the bottom of the support block, and the other end of the tension spring is fixed to the surface of the sealing shell.

[0013] As a preferred embodiment of the grinding device for aviation parts of the present invention, the following is provided: The main body assembly further includes a handle and an armrest fixed to the surface of the grinder body.

[0014] As a preferred embodiment of the grinding device for aviation parts of the present invention, the following is provided: Magic tapes are provided at the bottoms of the first grinding disc and the second grinding disc.

[0015] The beneficial effects of the present invention are as follows: By providing a grinding assembly, the first grinding disc and the second grinding disc can be flexibly attached to the arc-shaped surface of the parts, achieving uniform and efficient grinding; Through the cooperation of the adjusting member and the auxiliary member, the first grinding disc can perform precise grinding on specific points alone, avoiding excessive grinding of the surrounding area. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them: Figure 1 It is a structural diagram of a grinding device for aviation parts.

[0017] Figure 2 It is for the grinding device of aviation parts Figure 1 Partial enlarged structural diagram at D in it.

[0018] Figure 3 It is another perspective structural diagram of the adjusting rod of the grinding device for aviation parts.

[0019] Figure 4 It is for the grinding device of aviation parts Figure 3 Cross-sectional structural diagram at A - A in it.

[0020] Figure 5 It is for the grinding device of aviation parts Figure 4 Partial enlarged structural diagram at E in it.

[0021] Figure 6 It is a structural diagram of the sealing shell of the grinding device for aviation parts.

[0022] Figure 7 Structural diagram of the slider for the grinding equipment of aviation parts.

[0023] Figure 8 Structural diagram of the gear ring for the grinding equipment of aviation parts.

[0024] Figure 9 For the grinding equipment of aviation parts Figure 8 Cross-sectional view at B-B in

[0025] Figure 10 Structural diagram of the isolation plate for the grinding equipment of aviation parts.

[0026] Figure 11 For the grinding equipment of aviation parts Figure 10 Cross-sectional view at C-C in

[0027] Figure 12 For the grinding equipment of aviation parts Figure 11 Partially enlarged structural diagram at F in

[0028] Figure 13 Structural diagram of the reversing frame for the grinding equipment of aviation parts.

[0029] Figure 14 Structural diagram of the reversing ball for the grinding equipment of aviation parts.

[0030] In the figure: main body assembly 100; grinding machine main body 101; drive shaft 102; handle 103; handrail 104; grinding assembly 200; grinding part 201; sun gear 2011; reversing frame 2012; reversing clip 2013; reversing ball 2014; reversing groove 2014-1; support shell 2015; first grinding disc 2016; compression spring 2017; auxiliary part 202; sealing shell 2021; gear ring 2022; star gear 2023; positioning ring 2024; support disc 2025; limit ring 2026; rotating shaft 2027; connecting disc 2028; second grinding disc 2029; seal 203; isolation plate 2031; positioning groove 2031-1; orientation sleeve 2032; return spring 2033; push rod 2034; bellows 2035; adjusting part 204; slider 2041; adjusting ring 2042; adjusting rod 2043; stabilizing rod 2044; support block 2045; tension spring 2046. Specific embodiments

[0031] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0032] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0033] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that exclude each other with other embodiments.

[0034] Embodiment 1, referring to Figures 1 to 5 , is the first embodiment of the present invention. This embodiment provides a grinding device for aviation parts. The grinding device for aviation parts includes a main body assembly 100, which includes a grinding machine main body 101. The grinding machine main body 101 is a prior art. A drive shaft 102 is fixed to the output end of the grinding machine main body 101. The grinding machine main body 101 uses electricity to drive the drive shaft 102 to rotate, thereby providing power for the grinding of aviation parts.

[0035] A grinding assembly 200 is disposed on the grinding machine main body 101. It includes a grinding member 201 disposed at the end of the drive shaft 102, which includes a sun gear 2011 fixed to the end of the drive shaft 102. A reversing frame 2012 is fixed to the bottom of the sun gear 2011. A reversing clip 2013 is fixed inside the reversing frame 2012. The number of reversing clips 2013 fixed inside each reversing frame 2012 is two. A reversing ball 2014 is disposed inside the reversing frame 2012. The reversing ball 2014 is spherical. A reversing groove 2014-1 is formed inside the reversing ball 2014. The number of reversing grooves 2014-1 is four, which are evenly distributed in a circumferential manner on the surface of the reversing ball 2014. The reversing clip 2013 can slide inside the reversing groove 2014-1. The reversing clip 2013 and the reversing ball 2014 are concentric. Two reversing clips 2013 are disposed on the surface of the reversing ball 2014, and the two reversing clips 2013 are disposed opposite to each other. A support shell 2015 is fixed to one side of the other reversing clip 2013. A first grinding disc 2016 slides inside the support shell 2015. A limiting strip is disposed between the support shell 2015 and the first grinding disc 2016, so that rotation does not occur between the support shell 2015 and the first grinding disc 2016. A compression spring 2017 is disposed inside the first grinding disc 2016. The compression spring 2017 is in a compressed state and can provide a supporting force for the first grinding disc 2016, so that the first grinding disc 2016 grinds aviation parts (such as an aircraft shell).

[0036] The first grinding disc 2016 is of a floating design. When the grinding machine main body 101 has a slight angular deviation, that is, when the grinding machine main body 101 is not parallel to the aviation component, through the settings of the reversing frame 2012, the reversing clip 2013 and the reversing ball 2014, the first grinding disc 2016 can still fit the surface of the aviation component.

[0037] During use, start the grinding machine main body 101, which can drive the drive shaft 102 to rotate, causing the drive shaft 102 to drive the sun gear 2011 to rotate. At this time, the sun gear 2011 can drive the reversing frame 2012 to rotate. The reversing frame 2012 can drive the reversing ball 2014 to rotate through two reversing clips 2013. The reversing ball 2014 can drive another reversing frame 2012 to rotate through two other reversing clips 2013, thereby driving the support shell 2015 to rotate. The support shell 2015 can drive the first grinding disc 2016 to rotate, so as to grind the aviation component.

[0038] When pressing the grinding machine main body 101 against the aviation component (such as an aircraft shell), the compression spring 2017 can be further compressed, causing the first grinding disc 2016 to move towards the support shell 2015.

[0039] Specifically, the grinding assembly 200 further includes an auxiliary part 202 arranged on one side of the grinding machine main body 101, including a sealing shell 2021 fixed to one side of the grinding machine main body 101. The sealing shell 2021 is used to seal the gear mechanism of this grinding equipment. A gear ring 2022 slides in the sealing shell 2021. A star gear 2023 is arranged inside the gear ring 2022. The number of star gears 2023 is six. The gear ring 2022 meshes with the star gear 2023, and the star gear 2023 meshes with the sun gear 2011. If the gear ring 2022 is positioned, when the sun gear 2011 rotates, it can drive the star gear 2023 to rotate self - rotatably and cause the star gear 2023 to revolve around the sun gear 2011.

[0040] Specifically, the auxiliary part 202 further includes a positioning ring 2024 fixed to the top of the gear ring 2022. A support disc 2025 is rotatably connected inside the positioning ring 2024. A limit ring 2026 is fixed on the surface of the support disc 2025. The limit ring 2026 is rotatably connected inside the positioning ring 2024. Through the setting of the limit ring 2026, the support disc 2025 is stably rotatably connected inside the positioning ring 2024. A rotating shaft 2027 is fixed to the top of the star gear 2023. The rotating shaft 2027 is rotatably connected inside the support disc 2025, so that the star gear 2023 can rotate stably.

[0041] Specifically, the auxiliary part 202 further includes a connection disk 2028 fixed to the bottom of the star gear 2023. A second grinding disk 2029 is arranged below the connection disk 2028. A reversing frame 2012 is fixed to the bottom of the connection disk 2028. A reversing clamp 2013 and a reversing ball 2014 are also arranged inside the reversing frame 2012. Another reversing frame 2012 is fixed to the top of the second grinding disk 2029. In this way, when the connection disk 2028 rotates, it can drive the second grinding disk 2029 to rotate, and the second grinding disk 2029 can deflect at an angle, so as to adapt to the arc-shaped structures with protrusions or depressions that often exist in aviation parts.

[0042] Embodiment 2, refer to Figures 2 to 14 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment.

[0043] Specifically, the grinding assembly 200 further includes a sealing member 203 arranged in the sealing shell 2021, including a partition plate 2031 fixed in the sealing shell 2021. A positioning groove 2031-1 is formed in the partition plate 2031. The number of the positioning grooves 2031-1 is six, and the inner diameter of the positioning groove 2031-1 is equal to the outer diameter of the reversing frame 2012. When both reversing frames 2012 move upward, the lower reversing frame 2012 can be moved into the positioning groove 2031-1, so that the reversing frame 2012 cannot deflect, and thus the second grinding disk 2029 cannot deflect at an angle.

[0044] Specifically, the sealing member 203 further includes an orientation sleeve 2032 sliding on the surface of the reversing frame 2012. When the orientation sleeve 2032 is sleeved on the surfaces of the two reversing frames 2012, the two reversing frames 2012 will be concentric, so that the reversing frame 2012 cannot be adjusted at an angle. A return spring 2033 is fixed to the top of the orientation sleeve 2032. The return spring 2033 is in a compressed state and is used to push the orientation sleeve 2032. A push rod 2034 is fixed to the bottom of the orientation sleeve 2032. The bottom of the push rod 2034 is fixed to the inner bottom wall of the first grinding disk 2016. A corrugated pipe 2035 is fixed to the bottom of the partition plate 2031. The corrugated pipe 2035 is used to protect the reversing mechanism at the reversing frame 2012. A corrugated pipe 2035 is also fixed to the top of the support shell 2015. The top of this corrugated pipe 2035 is fixed to the bottom of the partition plate 2031. When the first grinding disk 2016 moves towards the support shell 2015, the push rod 2034 can push the orientation sleeve 2032, so that the orientation sleeve 2032 moves to the surfaces of the two reversing frames 2012, so that the reversing frame 2012 cannot be adjusted at an angle, so that the stability of the first grinding disk 2016 is stronger, and it can better grind stubborn grinding points.

[0045] Specifically, the grinding assembly 200 further includes an adjusting member 204 disposed on the sealing housing 2021, including a slider 2041 fixed to the surface of the gear ring 2022. The number of sliders 2041 is six, evenly distributed on the surface of the gear ring 2022. An adjusting ring 2042 is fixed to the surface of the slider 2041. The adjusting ring 2042 slides on the surface of the sealing housing 2021, and the slider 2041 slides inside the sealing housing 2021. Through the setting of the slider 2041, the gear ring 2022 will not rotate inside the sealing housing 2021, so that the planetary gear 2023 can perform a circular motion around the sun gear 2011.

[0046] By moving the adjusting ring 2042 upward, the adjusting ring 2042 can drive the gear ring 2022 to move upward through the slider 2041, so that the gear ring 2022 drives the planetary gear 2023 to move upward through the positioning ring 2024, the support disk 2025, the limiting ring 2026 and the rotating shaft 2027. During the upward movement of the planetary gear 2023, it still meshes with the sun gear 2011. By moving the planetary gear 2023 upward, the second grinding disk 2029 can be driven to move upward, so that only the first grinding disk 2016 contacts the aviation component, so that the first grinding disk 2016 grinds the stubborn grinding points of the aviation component.

[0047] Specifically, an adjusting rod 2043 is fixed to the top of the adjusting ring 2042. The shape of the adjusting rod 2043 is "n". A stabilizing rod 2044 is fixed to the surface of the grinding machine main body 101. The adjusting rod 2043 slides inside the stabilizing rod 2044. A support block 2045 is fixed to one side of the adjusting rod 2043. A tension spring 2046 is fixed to the bottom of the support block 2045. The tension spring 2046 is in a stretched state, and the other end of the tension spring 2046 is fixed to the surface of the sealing housing 2021. Through the setting of the tension spring 2046, the adjusting ring 2042 can stay in the current position. By pulling the adjusting rod 2043, the adjusting ring 2042 can be driven to move upward, so as to facilitate the adjustment of the position of the gear ring 2022. When the adjusting rod 2043 is released, under the action of the reset pulling force of the tension spring 2046, the gear ring 2022 can be driven to move downward, so that the gear ring 2022 is reset.

[0048] Example 3, referring to Figures 1 to 14 , is the third embodiment of the present invention, and this embodiment is based on the first two embodiments.

[0049] Specifically, the main body assembly 100 further includes a handle 103 and an armrest 104 fixed to the surface of the grinding machine main body 101. Through the setting of the handle 103 and the armrest 104, it is convenient for the staff to operate the grinding machine main body 101. By applying a pressing force to the armrest 104, the force that the second grinding disk 2029 presses against the surface of the grinding object can be made greater.

[0050] Specifically, the bottoms of the first grinding disc 2016 and the second grinding disc 2029 are provided with Velcro, which enables the first grinding disc 2016 and the second grinding disc 2029 to quickly replace the sandpaper with Velcro on the back, so as to facilitate the replacement of sandpaper with different mesh numbers.

[0051] During use, when grinding aviation parts with an arc surface, such as an aircraft hull; When the arc surface is convex, the convex points on the arc surface can squeeze the first grinding disc 2016, causing the first grinding disc 2016 to move into the support shell 2015. At the same time, the second grinding disc 2029 can change its inclination angle to conform to the arc surface of the aviation part.

[0052] When the arc surface is concave, it can cause the second grinding disc 2029 to push the star gear 2023, causing the second grinding disc 2029 to move towards the sealing shell 2021, so that the first grinding disc 2016 protrudes, thereby grinding the concave part of the arc surface. At the same time, the second grinding disc 2029 can change its inclination angle to conform to the arc surface of the aviation part.

[0053] When it is necessary to grind stubborn grinding points, while the staff presses the armrest 104, pull the adjusting rod 2043, so that the adjusting rod 2043 drives the adjusting ring 2042 to move upward. It can make the adjusting ring 2042 drive the gear ring 2022 to move upward through the slider 2041, so that the gear ring 2022 drives the star gear 2023 to move upward through the positioning ring 2024, the support disc 2025, the limit ring 2026 and the rotating shaft 2027. During the upward movement of the star gear 2023, it still meshes with the sun gear 2011. By the upward movement of the star gear 2023, it can drive the second grinding disc 2029 to move upward, so that only the first grinding disc 2016 contacts the surface of the aviation part, so that the first grinding disc 2016 grinds the stubborn grinding points of the aviation part, avoiding excessive grinding of the surrounding area.

[0054] And when pressing the armrest 104, when the first grinding disc 2016 moves towards the support shell 2015, it can cause the push rod 2034 to push the orientation sleeve 2032, so that the orientation sleeve 2032 moves to the surfaces of the two reversing frames 2012, so that the reversing frames 2012 cannot adjust their angles. At this time, the first grinding disc 2016 cannot adjust its angle, so that the stability of the first grinding disc 2016 is stronger, it can stably bear greater extrusion force, and it can better grind stubborn grinding points.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A grinding device for aviation parts, characterized in that: including, a main body component (100), including a grinder main body (101), and a drive shaft (102) is fixed to the output end of the grinder main body (101); a grinding component (200), arranged on the grinder main body (101), including a grinding member (201) arranged at the end of the drive shaft (102), including a sun gear (2011) fixed to the end of the drive shaft (102), a reversing frame (2012) is fixed to the bottom of the sun gear (2011), a reversing clip (2013) is fixed inside the reversing frame (2012), a reversing ball (2014) is arranged inside the reversing frame (2012), a reversing groove (2014-1) is formed inside the reversing ball (2014), the reversing clip (2013) can slide inside the reversing groove (2014-1), two reversing clips (2013) are arranged on the surface of the reversing ball (2014), and the two reversing clips (2013) are arranged oppositely, a support shell (2015) is fixed to one side of the other reversing clip (2013), a first grinding disc (2016) slides inside the support shell (2015), and a compression spring (2017) is arranged inside the first grinding disc (2016).

2. The grinding equipment for aviation parts according to claim 1, characterized in that: The grinding component (200) further includes an auxiliary member (202) arranged on one side of the grinder main body (101), including a sealing shell (2021) fixed to one side of the grinder main body (101), a toothed ring (2022) slides inside the sealing shell (2021), a star gear (2023) is arranged inside the toothed ring (2022), the toothed ring (2022) meshes with the star gear (2023), and the star gear (2023) meshes with the sun gear (2011).

3. The grinding equipment for aviation parts according to claim 2, characterized in that: The auxiliary member (202) further includes a positioning ring (2024) fixed to the top of the toothed ring (2022), a support disc (2025) is rotatably connected inside the positioning ring (2024), a limiting ring (2026) is fixed to the surface of the support disc (2025), the limiting ring (2026) is rotatably connected inside the positioning ring (2024), and a rotating shaft (2027) is fixed to the top of the star gear (2023).

4. The grinding device for aviation parts according to claim 3, characterized in that: The auxiliary member (202) further includes a connecting disc (2028) fixed to the bottom of the star gear (2023), and a second grinding disc (2029) is arranged below the connecting disc (2028).

5. The grinding device for aviation parts according to claim 4, characterized in that: The grinding component (200) further includes a sealing member (203) arranged inside the sealing shell (2021), including a partition plate (2031) fixed to the inside of the sealing shell (2021), and a positioning groove (2031-1) is formed inside the partition plate (2031).

6. The grinding device for aviation parts according to claim 5, characterized in that: The seal (203) further includes an orientation sleeve (2032) that slides on the surface of the commutation frame (2012). A return spring (2033) is fixed to the top of the orientation sleeve (2032), a push rod (2034) is fixed to the bottom of the orientation sleeve (2032), the bottom of the push rod (2034) is fixed to the inner bottom wall of the first grinding disc (2016), and a corrugated pipe (2035) is fixed to the bottom of the partition plate (2031).

7. The grinding device for aviation parts according to claim 6, characterized in that: The grinding assembly (200) further includes an adjusting member (204) disposed on the sealing shell (2021), including a slider (2041) fixed to the surface of the gear ring (2022). An adjusting ring (2042) is fixed to the surface of the slider (2041), the adjusting ring (2042) slides on the surface of the sealing shell (2021), and the slider (2041) slides inside the sealing shell (2021).

8. The grinding device for aviation parts according to claim 7, characterized in that: An adjusting rod (2043) is fixed to the top of the adjusting ring (2042), a stabilizing rod (2044) is fixed to the surface of the grinding machine main body (101), the adjusting rod (2043) slides inside the stabilizing rod (2044), a support block (2045) is fixed to one side of the adjusting rod (2043), a tension spring (2046) is fixed to the bottom of the support block (2045), and the other end of the tension spring (2046) is fixed to the surface of the sealing shell (2021).

9. The grinding device for aviation parts according to claim 1 or 8, characterized in that: The main body assembly (100) further includes a handle (103) and an armrest (104) fixed to the surface of the grinding machine main body (101).

10. The grinding device for aviation parts according to claim 8, characterized in that: Magic tapes are provided at the bottoms of the first grinding disc (2016) and the second grinding disc (2029).

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