Polishing mechanism and polishing equipment suitable for motor end cover

Abstract

The present invention provides a polishing mechanism and polishing equipment suitable for a motor end cover. The polishing mechanism includes a polishing assembly and an adjusting assembly. The polishing assembly includes two coaxial fixing rings and multiple brush rings and a guide rod, a first elastic reset member, and a first elastic reset member is arranged between two adjacent brush rings; the adjusting assembly includes multiple grid frames corresponding to the multiple brush rings and multiple plates corresponding to every two adjacent brush rings. The grid frames are arranged on the outer peripheral side of the corresponding brush rings and include multiple grid blocks arranged in a circular array. The grid blocks are independently and movably connected to the corresponding brush rings through a first connecting member; the plate is arranged between the corresponding two adjacent brush rings and includes multiple plates arranged in a circular array. The plates protrude from the grid blocks on both sides and are slidably connected to the grid blocks on both sides respectively. The plates are also independently and movably connected to the two brush rings corresponding to them through a second connecting member, thereby improving the consistency of polishing of the concave and convex areas on the end cover and improving the overall polishing quality.

Description

Technical Field

[0001] The invention belongs to the technical field of polishing equipment, and in particular relates to a polishing mechanism and polishing equipment suitable for a motor end cover. Background Art

[0002] As a key structural component connecting the rotor and the motor base, the motor end cover plays a vital role. It not only effectively protects the motor's delicate components, preventing dust and impurities from entering, ensuring proper operation, but also, through the rolling bearings housed within it, precisely maintains the relative position between the stator and rotor, guaranteeing efficient operation. The machined surfaces of the motor end cover include the stopper and end face, which tightly mate with the motor base, as well as the shaft hole, bearing chamber inner hole, and end face, which precisely mate with the shaft and bearings.

[0003] Polishing is an essential step in the production and processing of drum motor end caps. However, when polishing the end cap surface with a polishing wheel, the surface of the end cap exhibits an uneven appearance due to the presence of depressions and protrusions. As the polishing wheel rotates and contacts the end cap surface, the flat areas of the end cap often maintain normal contact with the polishing wheel, while the protrusions experience excessive contact. This excessive contact causes the polishing wheel to over-polish the protrusions during rotation, affecting the consistency of the polished surface. Summary of the Invention

[0004] The purpose of the present invention is to provide a polishing mechanism and a polishing device which can improve the polishing consistency of concave and convex areas on a motor end cover.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] The present invention provides a polishing mechanism suitable for a motor end cover, comprising:

[0007] A polishing assembly comprising two fixed rings spaced apart, a guide rod connected between the two fixed rings, a plurality of brush rings sleeved on the guide rods and slidable in the axial direction and coaxial with the two fixed rings, and a first elastic reset member, wherein bristles are provided on the outer periphery of the brush rings, and one or more of the first elastic reset members are provided between two adjacent brush rings; and,

[0008] An adjustment component includes a plurality of grille frames corresponding to a plurality of brush rings and a plurality of plates corresponding to every two adjacent brush rings, wherein the grille frames are arranged on the outer peripheral side of the corresponding brush rings, and include a plurality of grille blocks arranged in an annular array, the grille blocks are covered with grille units for bristles to pass through, and the grille blocks are independently and movably connected to the corresponding brush rings through a first connecting member; the plate is arranged between the two corresponding adjacent brush rings, and includes a plurality of plates arranged in an annular array, the plates protrude from the grille blocks on both sides and are slidably connected to the grille blocks on both sides respectively, and the plates are also independently and movably connected to the two corresponding brush rings through a second connecting member.

[0009] The plate is configured to move radially with the grid blocks thereon under the action of external force.

[0010] When the plate moves radially and inward with the grille blocks thereon, the second connecting piece thereon pushes the two adjacent brush rings corresponding to the plate to move away from each other, and drives the grille blocks on the plate to move toward the plate, so that the bristles in the grille units on it tend to bend toward the plate.

[0011] In some embodiments, the grid blocks are arc-shaped.

[0012] In some embodiments, two adjacent grid blocks on the same grid frame have a gap therebetween or are in contact with each other.

[0013] In some embodiments, the multiple grid blocks on the same grid frame have the same shape and size.

[0014] In some embodiments, the grid blocks on different grid frames have the same or different shapes and are equal or different sizes.

[0015] In some embodiments, the grid block has one or more grid unit groups. When the grid block has multiple grid unit groups, the multiple grid unit groups are arranged in sequence along the axial direction, and the grid unit group is composed of multiple grid units evenly arranged along the circumference of the grid block.

[0016] In some specific implementations, the grid units on adjacent grid unit groups are staggered.

[0017] In some specific embodiments, the grid unit is rectangular or square in shape.

[0018] In some embodiments, the plate is arc-shaped.

[0019] In some embodiments, two adjacent panels on the same plate have a gap therebetween or are in contact with each other.

[0020] In some embodiments, the multiple panels on the same plate have the same shape and size.

[0021] In some embodiments, the panels on different panels may have the same or different shapes and may be of equal or different sizes.

[0022] In some embodiments, two sides of the plate are each independently connected to one of the grid blocks.

[0023] In some embodiments, the first connecting member includes a first rotating connecting portion, a first inclined portion, and a second rotating connecting portion, one end of the first inclined portion is rotatably connected to the side of the grille block through the first rotating connecting portion, and the other end extends obliquely toward the brush ring corresponding to the grille block and is rotatably connected to the brush ring through the second rotating connecting portion.

[0024] In some embodiments, the second connecting member includes a third rotating connecting portion, a second inclined portion and a fourth rotating connecting portion, the second inclined portion and the fourth rotating connecting portion are arranged in a one-to-one correspondence and there are two of them, one end of the two second inclined portions are respectively rotatably connected to the third rotating connecting portion, and the other ends are respectively extended obliquely toward the brush rings on both sides of the plate body and are rotatably connected to the brush rings through their corresponding fourth rotating connecting portions, and the third rotating connecting portion is fixedly connected to the middle area of ​​the plate body.

[0025] Furthermore, the two second inclined portions on the second connecting member are symmetrically arranged.

[0026] In some specific embodiments, the length of the first inclined portion is greater than the length of the second inclined portion.

[0027] In some embodiments, the inner side surface of the plate is fixedly connected to a limiting frame, and an axially extending slideway is formed between the limiting frame and the inner side surface of the plate, and the grid blocks on the plate are slidably arranged in the slideway.

[0028] In some embodiments, the adjustment assembly further includes a second elastic return member, and one or more second elastic return members are connected between the grid blocks on both sides of the plate.

[0029] In some embodiments, there are multiple guide rods evenly arranged along the circumference of the fixing ring.

[0030] In some embodiments, the first elastic reset member is sleeved on the guide rod between the outermost brush ring and its adjacent fixing ring.

[0031] In some embodiments, there are multiple first elastic return members between two adjacent brush rings that are evenly arranged along the circumference of the brush ring.

[0032] In some embodiments, the polishing mechanism further includes a shaft, the shaft being fixedly connected to the fixing ring and being coaxial with the fixing ring, and the shaft being configured to be rotatable around its own axis.

[0033] The present invention also provides a polishing device suitable for a motor end cover, which includes the polishing mechanism described above.

[0034] In some embodiments, the polishing equipment also includes a support frame, a platform provided on the support frame and capable of loading a motor end cover, a first driving mechanism connected between the platform and the support frame and used to drive the platform to move in a first direction, a second driving mechanism connected to the polishing mechanism and used to drive the polishing mechanism to rotate, and a third driving mechanism connected between the support frame and the second driving mechanism and used to drive the second driving mechanism to move in a second direction, wherein the first direction is perpendicular to the second direction.

[0035] Furthermore, the second direction is an up-down direction.

[0036] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0037] The polishing mechanism of the present invention is capable of automatic adjustment during the polishing operation of the motor end cover. When the brush rings polish the surface of the motor end cover and encounter the raised structures, the raised structures will generate radial propulsion forces on the plates between the multiple brush rings it contacts, causing the plates to move radially inward synchronously with the grille blocks on them.

[0038] As the plate and the grille blocks on it gradually move radially inward, the second connecting piece on the plate pushes the brush rings on both sides connected to it to gradually move away from each other, thereby increasing the gap between the brush rings on both sides, allowing the raised structure to enter the gap, thereby reducing the excessive local pressure on the raised structure caused by the brush ring during the polishing process, avoiding excessive polishing and removal of the raised structure, and improving the stability and consistency of the polishing of the motor end cover surface.

[0039] While the brush rings on both sides are moving, the grille block on the plate is pushed by the first connecting member, so that the grille block moves along the inner wall of the plate toward the direction close to the plate. Since the bristles on the brush ring pass through the grille unit on the grille block, when the grille block slides relative to the plate, the grille unit will drive the bristles to deflect toward the direction close to the plate. The deflected bristles will contact the side walls of the raised structure, thereby grinding and polishing the side walls of the raised structure, reducing the situation where the side walls of the raised structure are difficult to be contacted and polished by the bristles, further improving the uniformity between the plane and the raised structure during polishing, and improving the polishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 A schematic structural diagram of the polishing mechanism provided in Example 1;

[0042] Figure 2 A cross-sectional view of the polishing mechanism provided in Example 1;

[0043] Figure 3 An exploded view of the polishing mechanism provided in Example 1;

[0044] Figure 4 The polishing mechanism provided for Example 1 is a schematic structural diagram showing only some of the components;

[0045] Figure 5 A schematic structural diagram of the brush ring provided in Example 1;

[0046] Figure 6 A schematic structural diagram of the plate, grid block, first connecting member and second connecting member provided in Example 1;

[0047] Figure 7 for Figure 6 A magnified schematic diagram of part A;

[0048] Figure 8 A schematic structural diagram of the polishing equipment provided in Example 2;

[0049] Figure 9 A schematic structural diagram of the polishing equipment provided in Example 2 from another angle;

[0050] Among them, 1. polishing assembly; 11. first fixing ring; 12. second fixing ring; 13. guide rod; 14. brush ring; 141. bristles; 142. outer periphery of the brush ring; 15. first elastic reset member; 16. shaft;

[0051] 2. Adjustment assembly; 21. Grille block; 211. Grille unit; 22. Plate; 221. Plate inner wall; 222. Limiting frame; 2221. First limiting portion; 2222. Second limiting portion; 223. Slide; 23. First connecting member; 231. First rotating connection; 232. First inclined portion; 233. Second rotating connection; 24. Second connecting member; 241. Third rotating connection; 242. Second inclined portion; 243. Fourth rotating connection; 25. Second elastic return member;

[0052] 3. Support frame; 4. Platform; 41. Rotating shaft; 42. Belt; 43. Drive motor; 5. First drive mechanism; 51. First electric push rod; 6. Second drive mechanism; 7. Third drive mechanism; 8. Motor end cover;

[0053] x, first direction; y, second direction. DETAILED DESCRIPTION

[0054] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0055] In the description of the embodiments of the present invention, it is important to understand that the axial direction refers to the direction of the central axis of rotation of the device or component, and the radial direction refers to the direction perpendicular to the central axis of rotation; the inner and outer directions are positions defined by the distance relative to the center of the device or component, where the inner direction is close to the center of the device or component and the outer direction is far from the center of the device or component; and the upper and lower directions refer to the orientation of the device or component in actual use or working conditions. The above-mentioned directional terms are used only to facilitate the description of the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0057] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "connected" and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0058] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0059] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0060] Example 1: This embodiment provides a polishing mechanism, such as Figures 1 to 7 As shown, it includes a polishing component 1 and an adjustment component 2.

[0061] The polishing assembly 1 includes two fixed rings spaced apart, a guide rod 13 connected between the two fixed rings, a plurality of brush rings 14 sleeved on the guide rod 13 and slidable in the axial direction and coaxial with the two fixed rings, and a first elastic reset member 15. The two fixed rings are a first fixed ring 11 and a second fixed ring 12. Bristles 141 are provided on the outer periphery 142 of the brush ring. One or more first elastic reset members 15 are provided between two adjacent brush rings 14. Preferably, multiple first elastic reset members 15 are provided, and the multiple first elastic reset members 15 are evenly distributed along the circumference.

[0062] The adjustment assembly 2 includes a plurality of grid frames corresponding to a plurality of brush rings 14 and a plurality of plates corresponding to every two adjacent brush rings 14. The grid frames are arranged on the outer peripheral side of the corresponding brush rings 14, and the grid frames include a plurality of grid blocks 21 arranged in a circular array. Each grid block 21 is covered with grid units 211 for the bristles 141 to pass through, and each grid block 21 is independently and movably connected to its corresponding brush ring 14 through a first connecting member 23. The plate is arranged between its corresponding two adjacent brush rings 14, and includes a plurality of plates 22 arranged in a circular array. The plates 22 protrude from the grid blocks 21 on both sides thereof and are axially slidably connected to the grid blocks 21 on both sides thereof. In other words, the grid blocks 21 on both sides of the plate 22 can slide axially relative to the plate 22. The plate 22 is also independently and movably connected to its corresponding two brush rings 14 through a second connecting member 24.

[0063] The plate 22 is configured to move radially with the grille blocks 21 thereon under the action of an external force. When the plate 22 moves radially and inward with the grille blocks 21 thereon, the second connecting member 24 on the plate 22 pushes the two adjacent brush rings 14 corresponding to the plate 22 to move away from each other, and drives the grille blocks 21 on the plate 22 to move toward the plate 22, so that the bristles 141 in the grille units 211 thereon have a tendency to bend toward the plate 22. Specifically:

[0064] When the brush ring 14 grinds the surface of a component with a raised structure (such as the motor end cover 8, referred to as the motor cover), when encountering a raised structure, the raised structure will generate a radially inward pushing force on the plates 22 (for ease of understanding, the plates 22 will be referred to as contact plates 22 below) between the multiple brush rings 14 it contacts, causing the contact plates 22 to move radially inward synchronously with the grille blocks 21 thereon.

[0065] As the contact plate 22 moves radially inward, the contact plate 22 drives the second connecting piece 24 thereon to push the brush rings 14 on both sides connected thereto to gradually move away from each other, so that the gap between the brush rings 14 on both sides gradually increases, and the raised structure is able to enter the gap, thereby reducing the excessive local pressure caused by the brush ring 14 on the raised structure during the polishing process, avoiding the over-polishing and removal of the raised structure, and thereby improving the stability and consistency of the polishing of the surface of the motor end cover 8.

[0066] As the brush rings 14 on both sides of the contact plate 22 gradually move away from each other, the brush ring 14 will drive the first connecting member 23 to push the grid block 21 on the contact plate 22, so that the grid block 21 slides along the inner side wall 221 of the contact plate toward the direction close to the contact plate 22. Since the bristles 141 on the brush ring 14 pass through the grid unit 211 on the grid block 21, when the grid block 21 slides relative to the contact plate 22, the side wall of the grid unit 211 will drive the bristles 141 to deflect toward the direction close to the contact plate 22. The deflected bristles 141 will contact the side wall of the raised structure, thereby grinding and polishing the side wall of the raised structure, thereby reducing the situation where the side wall of the raised structure is difficult to be contacted and polished by the bristles 141, further improving the uniformity between the plane and the raised structure during polishing, and improving the polishing efficiency.

[0067] The brush rings 14 on both sides of the contact plate 22 move away from each other, that is, while moving outward, the brush rings 14 on both sides of the contact plate 22 will also push the remaining brush rings 14 on the outside to move outward through the first elastic return parts 15 on the outside. The first elastic return parts 15 between the remaining brush rings 14 are gradually compressed, and the gaps between the remaining brush rings 14 gradually decrease. At this time, the remaining brush rings 14 push the corresponding grille blocks 21 to move radially outward through the first connecting members 23 connected thereto. When the grille block 21 moves radially outward, the inner wall of the grille unit 211 passed therethrough combs the bristles 141 thereon, thereby reducing the situation where the bristles 141 on the brush rings 14 are too dense and contact and entanglement occur between each other when multiple brush rings 14 approach each other and polish the surface of the machine cover. This ensures that the bristles 141 can remain relatively independent during the polishing process, reduces the disorder of the polishing lines caused by the entanglement of the bristles 141 and the appearance of rough lines on the surface of the machine cover after polishing, and further improves the polishing quality and polishing accuracy.

[0068] Furthermore, when the brush ring 14 is separated from the raised structure, the elastic potential energy of the first elastic reset member 15 drives the multiple brush rings 14 to slide and reset. During the sliding and resetting process of the multiple brush rings 14, there will be a slight shaking between the brush rings 14, which can shake off and remove the fine waste generated during the polishing operation. At the same time, as the brush ring 14 is reset, the brush ring 14 drives the grid block 21 to move, thereby sliding and combing the bristles 141. Combined with the shaking generated by the brush ring 14 when it is reset, the sliding combing can further clean the waste remaining in the brush ring 14 during polishing, greatly reducing the probability of waste remaining in the brush ring 14, thereby avoiding the situation where the surface of the machine cover is scratched during polishing due to the contact between the residual waste and the surface of the machine cover, further enhancing the polishing accuracy of the brush ring 14 and improving the polishing quality.

[0069] The grille blocks 21 are preferably curved. Adjacent grille blocks 21 on the same grille frame may have a gap or contact with each other. A certain gap is preferably provided to facilitate independent movement of each grille block 21, thereby enhancing the hood polishing process. The size of the gap is designed based on actual needs and is not specifically limited. Preferably, multiple grille blocks 21 on the same grille frame are of the same shape and size, and grille blocks 21 on different grille frames are of the same shape and size.

[0070] Furthermore, the grid block 21 has one or more grid unit groups. When the grid block 21 has multiple grid unit groups, the multiple grid unit groups are arranged axially, and the grid unit group is composed of multiple grid units 211 uniformly arranged along the circumference of the grid block 21. Preferably, the grid units 211 on adjacent grid unit groups are staggered to better polish the side walls of the raised structure. The shape of the grid unit 211 is preferably rectangular or square. In this embodiment, the grid block 21 has one group of grid unit groups, and the grid unit 211 is rectangular, and the length of the rectangle is equal to the thickness of the brush ring 14, or slightly larger than the thickness of the brush ring 14. It should be noted that the thickness of the brush ring 14 mentioned here actually refers to the thickness of the outer peripheral portion 142 of the brush ring where the bristles 141 are provided.

[0071] The plates 22 are preferably arc-shaped, and their number can be designed according to actual conditions, and this application does not impose any specific restrictions. There is a gap between two adjacent plates 22 on the same plate or they are in contact with each other. Similar to the grid blocks 21, it is preferred that there is a certain gap. Preferably, multiple plates 22 on the same plate have the same shape and are equal in size, and the plates 22 on different plates have the same shape and are equal in size. Preferably, a grid block 21 is independently connected to each side of the plate 22 to avoid mutual interference with other plates 22 and grid blocks 21, so that the plate 22 and the grid blocks 21 connected to its two sides remain independent.

[0072] Furthermore, the inner sidewall of the plate 22 is fixedly connected to a limiting frame 222, forming a slideway 223 between the limiting frame 222 and the inner sidewall of the plate 22. The grille blocks 21 on the plate 22 are slidably disposed within the slideway 223. In this embodiment, the limiting frames 222 have two limiting frames 222, one at each end of the plate 22. Each limiting frame 222 includes a first limiting portion 2221 extending radially and fixedly connected to the middle position of the plate 22, and a second limiting portion 2222 extending axially and fixedly connected to the first limiting portion 2221. The second limiting portion 2222 and the inner sidewall 221 of the plate form the slideway 223. The grille blocks 21 on both sides of the plate 22 are partially placed in the slideway 223. Controlled by the limiting frames 222, the plate 22 can move synchronously in the radial direction with the grille blocks 21 thereon.

[0073] Each grid block 21 is connected to the brush ring 14 corresponding to it via one or more first connecting members 23. In this embodiment, two first connecting members 23 are symmetrically connected to both sides of the grid blocks 21 except the outermost grid block 21, and one first connecting member 23 is connected to the inner side of the outermost grid block 21. The first connecting members 23 are rotatably connected to the grid block 21 and the brush ring 14 corresponding to the grid block 21, respectively. Each plate 22 is connected to its two adjacent brush rings 14 via a second connecting member 24. The second connecting member 24 is rotatably connected to the plate 22 and the brush ring 14 corresponding to the plate 22, respectively, and the length of the rotating arm of the second connecting member 24 is less than the length of the rotating arm of the first connecting member 23, so that the grid block 21 on the brush ring 14 connected thereto can slide axially relative to the plate 22 under the drive of the brush ring 14.

[0074] Specifically, the first connector 23 includes a first pivoting portion 231, a first inclined portion 232, and a second pivoting portion 233. One end of the first inclined portion 232 (i.e., the pivoting arm of the first connector 23) is pivotally connected to the side of the grille block 21 via the first pivoting portion 231. The other end extends obliquely toward the brush ring 14 corresponding to the grille block 21 and is pivotally connected to the brush ring 14 via the second pivoting portion 233. The first and second pivoting portions 231, 233 include, but are not limited to, hinges, bearings, and spherical joints. The second connector 24 includes a third pivoting portion 241, a second inclined portion 242 (i.e., the pivoting arm of the second connector 24), and a fourth pivoting portion 243. Among them, the second inclined portion 242 and the fourth rotating connection portion 243 are arranged in a one-to-one correspondence and there are two of them. One end of the two second inclined portions 242 is respectively rotatably connected to the third rotating connection portion 241, and the other end extends obliquely toward the brush ring 14 on both sides of the plate 22 and is rotatably connected to the brush ring 14 through its corresponding fourth rotating connection portion 243. The third rotating connection portion 241 is fixedly connected to the middle area of ​​the plate 22. Preferably, the two second inclined portions 242 are symmetrically arranged, and the third rotating connection portion 241 extends radially. The manner in which the third rotating connection portion 241 is rotatably connected to the second inclined portion 242, and the fourth rotating connection portion 243 include but are not limited to hinges, bearings, and spherical joints. The specific working principle is as follows:

[0075] When the plate 22 moves radially inward under the action of an external force, the plate 22 drives the grille blocks 21 thereon to move synchronously. The plate 22 also drives the second inclined portion 242 to rotate outward, increasing the angle between the second inclined portion 242 and the radial direction. Simultaneously, the second inclined portion 242 pushes the brush ring 14 connected thereto to slide outward. As the brush ring 14 slides outward, it drives the first inclined portion 232 to rotate. As the first inclined portion 232 rotates, it causes the grille blocks 21 to slide within the slideway 223 toward the plate 22.

[0076] To better reset the grid blocks 21, the adjustment assembly 2 also includes second elastic reset members 25. One or more second elastic reset members 25 are connected between the grid blocks 21 on both sides of each panel 22. The second elastic reset members 25 include, but are not limited to, compression springs. Preferably, in the initial state, the second elastic reset members 25 are in a naturally extended state.

[0077] The brush ring 14 includes an annular main portion and a brush ring peripheral portion 142 disposed on the periphery of the annular main portion. The brush ring peripheral portion 142 is covered with bristles 141, including but not limited to bristle bundles formed on the brush ring peripheral portion 142. The multiple brush rings 14 are of the same shape and size, and the distance between two adjacent brush rings 14 is equal.

[0078] The guide rods 13 extend axially and are arranged in a plurality of uniform arrangements along the circumference of the fixed ring. The specific number of guide rods 13 can be designed based on the size of the brush ring 14 or actual needs, and is not limited in this application. The first elastic reset member 15 is sleeved on the guide rod 13 between the outermost brush ring 14 and the adjacent fixed ring. The first elastic reset member 15 includes, but is not limited to, a compression spring. Preferably, in the initial state, the first elastic reset member 15 is in a naturally extended state.

[0079] The polishing mechanism further includes a shaft 16, which is fixedly connected to the fixing ring and coaxial with the fixing ring. The shaft 16 is configured to rotate about its axis. In this embodiment, the shaft 16 passes through the first fixing ring 11 and the plurality of brush rings 14 in sequence and is fixedly connected to the first fixing ring 11 and the second fixing ring 12.

[0080] Example 2: This example provides a polishing apparatus comprising a polishing mechanism, a support frame 3, a platform 4 mounted on the support frame 3 and capable of carrying a component to be polished (e.g., a motor end cap 8), a first drive mechanism 5 connected between the platform 4 and the support frame 3 and configured to drive the platform 4 in a first direction x, a second drive mechanism 6 connected to the polishing mechanism and configured to rotate the polishing mechanism, and a third drive mechanism 7 connected between the support frame 3 and the second drive mechanism 6 and configured to drive the second drive mechanism 6 in a second direction y. The first direction x is perpendicular to the second direction y. In this example, the second direction y is a vertical direction.

[0081] The polishing mechanism is as described in Example 1 and will not be described again here.

[0082] As an example, the first drive mechanism 5 is a telescopic motor mounted on the support frame 3. The telescopic motor's electric push rod (i.e., first electric push rod 51) is connected to the platform 4. Driven by the push rod, the platform 4 is capable of reciprocating motion along a first direction x. To guide the platform 4 and reduce friction between the platform 4 and the support frame 3, a slide rail assembly is provided between the platform 4 and the support frame 3. The structure of the slide rail assembly can refer to existing technologies.

[0083] A rotating shaft 41, a belt 42, and a drive motor 43 are mounted on the platform 4. The rotating shaft 41 extends vertically and is rotatably connected to the platform 4. A motor end cap 8 is fixedly mounted on the upper end of the rotating shaft 41. The drive motor 43 is mounted on the platform 4, with its output shaft extending in the same direction as the rotating shaft 41. The belt 42 is fitted over the output shaft of the drive motor 43 and the rotating shaft 41. Driven by the drive motor 43, the belt 42 rotates the rotating shaft 41 about its own axis, thereby driving the motor end cap 8 on the rotating shaft 41 to rotate.

[0084] The second driving mechanism 6 is connected to the polishing mechanism and is configured to drive the polishing mechanism to rotate around its own axis.

[0085] The third drive mechanism 7 is mounted on the support frame 3 and is used to drive the second drive mechanism 6 to slide along the second direction y. Specifically, the second drive mechanism 6 is mounted on a mounting seat, and the electric push rod of the third drive mechanism 7 is connected to the mounting seat. Driven by the electric push rod of the third drive mechanism 7, the mounting seat can slide along the vertical direction with the second drive mechanism 6 and the polishing mechanism thereon to adjust the polishing mechanism to the appropriate polishing position. To guide the mounting seat and reduce friction between the mounting seat and the support frame 3, a slide rail assembly can be provided between the mounting seat and the support frame 3.

[0086] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A polishing mechanism suitable for a motor end cover, characterized in that: include: A polishing assembly (1) comprising two fixed rings arranged at intervals, a guide rod (13) connected between the two fixed rings, a plurality of brush rings (14) respectively sleeved on the guide rods (13) and slidable in the axial direction and coaxial with the two fixed rings, a first elastic reset member (15), bristles (141) being provided on the outer periphery (142) of the brush rings, one or more first elastic reset members (15) being provided between each two adjacent brush rings (14); and, An adjusting assembly (2) comprising a plurality of grid frames corresponding to a plurality of brush rings (14) and a plurality of plates corresponding to each two adjacent brush rings (14), wherein the grid frames are arranged on the outer peripheral side of the corresponding brush rings (14), and comprise a plurality of grid blocks (21) arranged in an annular array, wherein the grid blocks (21) are covered with grid units (211) for the bristles (141) to pass through, and are independently and movably connected to the corresponding brush rings (14) via a first connecting member (23); wherein the plate is arranged between the corresponding two adjacent brush rings (14), and comprise a plurality of plates (22) arranged in an annular array, wherein the plates (22) protrude from the grid blocks (21) on both sides thereof and are slidably connected to the grid blocks (21) on both sides thereof, and are also independently and movably connected to the corresponding two brush rings (14) via a second connecting member (24); The plate (22) is configured to move radially with the grid block (21) thereon under the action of an external force; When the plate (22) moves radially and inwardly, the second connecting member (24) thereon pushes the two adjacent brush rings (14) corresponding to the plate (22) to move in directions away from each other, and drives the grid block (21) on the plate (22) to move in a direction close to the plate (22), so that the bristles (141) in the grid unit (211) thereon have a tendency to bend in a direction close to the plate (22).

2. The polishing mechanism for a motor end cover according to claim 1, characterized in that: The grid block (21) is arc-shaped; and / or, two adjacent grid blocks (21) on the same grid frame have a gap therebetween or are in contact with each other; And / or, the plurality of grid blocks (21) on the same grid frame have the same shape and are equal in size; the grid blocks (21) on different grid frames have the same or different shapes and are equal or unequal in size.

3. The polishing mechanism for a motor end cover according to claim 1, characterized in that: The grid block (21) has one or more grid unit groups. When the grid block (21) has multiple grid unit groups, the multiple grid unit groups are arranged in sequence along the axial direction. The grid unit group is composed of multiple grid units (211) evenly arranged along the circumference of the grid block (21).

4. The polishing mechanism for a motor end cover according to claim 3, characterized in that: The grid units (211) on adjacent grid unit groups are arranged in a staggered manner; And / or, the grid unit (211) is in a rectangular or square shape.

5. The polishing mechanism for motor end cover according to claim 1, characterized in that: The plate (22) is arc-shaped; and / or, two adjacent panels (22) on the same plate have a gap therebetween or are in contact with each other; And / or, the multiple plates (22) on the same plate have the same shape and are equal in size, and the plates (22) on different plates have the same or different shapes and are equal or unequal in size.

6. The polishing mechanism for a motor end cover according to claim 1, characterized in that: Both sides of the plate (22) are independently connected to one grid block (21).

7. The polishing mechanism for a motor end cover according to claim 1, characterized in that: The first connecting member (23) comprises a first rotating connecting portion (231), a first inclined portion (232) and a second rotating connecting portion (233); one end of the first inclined portion (232) is rotatably connected to the side of the grille block (21) via the first rotating connecting portion (231); the other end of the first inclined portion (232) extends obliquely toward a brush ring (14) corresponding to the grille block (21) and is rotatably connected to the brush ring (14) via the second rotating connecting portion (233).

8. The polishing mechanism for a motor end cover according to claim 1, characterized in that: The second connecting member (24) comprises a third rotating connecting portion (241), a second inclined portion (242) and a fourth rotating connecting portion (243). The second inclined portion (242) and the fourth rotating connecting portion (243) are arranged in a one-to-one correspondence and there are two of them. One end of the two second inclined portions (242) is respectively rotatably connected to the third rotating connecting portion (241), and the other end extends obliquely toward the brush rings (14) on both sides of the plate (22) and is rotatably connected to the brush rings (14) through their corresponding fourth rotating connecting portions (243). The third rotating connecting portion (241) is fixedly connected to the middle area of ​​the plate (22).

9. The polishing mechanism for a motor end cover according to claim 1, characterized in that: The inner side surface of the plate (22) is fixedly connected to a limiting frame (222), and a slideway (223) extending in the axial direction is formed between the limiting frame (222) and the inner side surface of the plate (22), and the grid block (21) on the plate (22) is slidably arranged in the slideway (223).

10. The polishing mechanism for a motor end cover according to claim 1, characterized in that: The adjustment assembly (2) further comprises a second elastic reset member (25), and one or more second elastic reset members (25) are connected between the grid blocks (21) on both sides of the plate (22).

11. The polishing mechanism for a motor end cover according to claim 1, characterized in that: The guide rods (13) are multiple and are evenly arranged along the circumference of the fixing ring.

12. The polishing mechanism for a motor end cover according to claim 1, characterized in that: The first elastic reset member (15) is sleeved on the guide rod (13) between the outermost brush ring (14) and the adjacent fixed ring; And / or, the first elastic reset members (15) between the two adjacent brush rings (14) include a plurality of first elastic reset members (15) uniformly arranged along the circumference of the brush ring (14).

13. The polishing mechanism for a motor end cover according to claim 1, characterized in that: The polishing mechanism further comprises a shaft (16), the shaft (16) being fixedly connected to the fixing ring and being coaxial with the fixing ring, and the shaft (16) being configured to be rotatable around its axis.

14. A polishing device suitable for motor end cover, characterized in that: The polishing mechanism comprises the polishing mechanism according to any one of claims 1 to 13.

15. The polishing device for motor end cover according to claim 14, characterized in that: The polishing device further comprises a support frame (3), a platform (4) provided on the support frame (3) and capable of loading a motor end cover (8), a first driving mechanism (5) connected between the platform (4) and the support frame (3) and used for driving the platform (4) to move in a first direction, a second driving mechanism (6) connected to the polishing mechanism and used for driving the polishing mechanism to rotate, and a third driving mechanism (7) connected between the support frame (3) and the second driving mechanism (6) and used for driving the second driving mechanism (6) to move in a second direction, wherein the first direction is perpendicular to the second direction.

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