CN115338749A - Automobile shell polishes and enlarges the area of polishing automatically and prevent blocking device - Google Patents
Automobile shell polishes and enlarges the area of polishing automatically and prevent blocking device Download PDFInfo
- Publication number
- CN115338749A CN115338749A CN202210883813.4A CN202210883813A CN115338749A CN 115338749 A CN115338749 A CN 115338749A CN 202210883813 A CN202210883813 A CN 202210883813A CN 115338749 A CN115338749 A CN 115338749A
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- China
- Prior art keywords
- fixedly connected
- polishing
- block
- left end
- area
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/12—Devices for exhausting mist of oil or coolant; Devices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention relates to the technical field of automobile accessories and discloses a device for automatically expanding a polishing area and preventing blockage during polishing of an automobile shell. Move left through grinding machanism under the effect of force to the area makes grinding machanism have a pressure left to compression spring, makes the inside atress of compression spring compress, and then inside gathering elastic potential energy, makes preparation for grinding machanism's restoration, when grinding machanism moves left simultaneously, along with pressure spring to grinding machanism's pressure, thereby makes grinding machanism polish to the place that the shell has not yet polished, thereby reaches the effect of automatic enlargement area of polishing.
Description
Technical Field
The invention relates to the technical field of automobile accessories, in particular to a device for automatically enlarging a polishing area and preventing blockage during polishing of an automobile shell.
Background
Along with the gradual development of society, the living standard of people is obviously improved, and modern people basically have an automobile, can make things convenient for people's trip through the automobile to make the demand for the automobile increase greatly in the market, and then drive the mill to the volume of the processing of the accessories of automobile also increase greatly, and is many, thereby satisfies market demand.
But the defect that the existence of the natural needs to be overcome of polishing to automobile shell at present, when polishing automobile shell, because of the shell is bulky to need constantly adjust the position of polishing when polishing, thereby comparatively consume the manpower, when collecting the waste material when polishing simultaneously, make the collection pipeline jam for a long time easily, consequently automobile shell polishes and enlarges the area of polishing automatically and prevent that the device from transporting certainly.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the device for automatically expanding the polishing area and preventing blockage during polishing of the automobile shell, which has the advantages of automatically expanding the polishing area and preventing the holes in the collecting plate from being blocked by waste materials, and solves the problems that the polishing position needs to be continuously adjusted during polishing due to large shell volume when the automobile shell is polished, so that manpower is consumed, and meanwhile, when the waste materials during polishing are collected, a collecting pipeline is easily blocked for a long time.
(II) technical scheme
In order to realize the purposes of automatically expanding the polishing area and preventing the holes in the collecting plate from being blocked by waste materials, the invention provides the following technical scheme: the utility model provides an auto shell polishes and enlarges area of polishing automatically and prevent device that blocks up, includes the casing, shells inner wall upper end swing joint has the axis of rotation, axis of rotation left end pipe connection has extension spring, extension spring left end fixedly connected with kicking block, axis of rotation lower extreme fixedly connected with guide pillar, guide pillar lower extreme fixedly connected with connecting rod, connecting rod lower extreme fixedly connected with slider, slider right-hand member swing joint has compression spring, slider lower extreme swing joint has the fixed block, fixed block lower extreme fixedly connected with compression spring, compression spring lower extreme fixedly connected with grinding machanism, kicking block left end swing joint has the atress piece, atress piece left end fixedly connected with baffle, baffle left end fixedly connected with reset spring, baffle lower extreme fixedly connected with roller, roller lower extreme swing joint has the slope piece, slope piece lower extreme fixedly connected with collecting plate, collecting plate upper end fixedly connected with vibrations spring, slope piece right-hand member swing joint has the fan.
Preferably, the number of the extension springs is two, the extension springs are respectively located at the left end and the right end of the rotating shaft, and the extension springs are located at the upper end of the fan.
Preferably, the number of the connecting rods is two, the two connecting rods are respectively located at the left end and the right end of the guide pillar, and the connecting rods are located at the right end of the fan.
Preferably, the two grinding mechanisms are respectively positioned at the left end and the right end of the guide pillar, and the lower ends of the grinding mechanisms are in contact with the grinding piece.
Preferably, the two fans are respectively positioned at the left end and the right end of the guide pillar, and the fans are communicated with the inner holes of the collecting plate.
Preferably, the number of the reset springs is two, the two reset springs are respectively located at the upper end and the lower end of the baffle, and the reset springs are located at the left end of the inner wall of the shell.
(III) advantageous effects
Compared with the prior art, the invention provides a device for automatically enlarging the polishing area and preventing blockage during polishing of an automobile shell, which has the following beneficial effects:
1. this automobile housing polishes and enlarges the area of polishing automatically and prevent to block up the device, remove left through grinding mechanism under the effect of force, thereby the area makes grinding mechanism have a pressure left to compression spring, make the inside atress of compression spring compress, and then inside gathering elastic potential energy, prepare for grinding mechanism's restoration, when grinding mechanism removes left simultaneously, along with pressure spring to grinding mechanism's pressure, thereby make grinding mechanism polish to the place that the shell has not polished yet, thereby reach the effect of the automatic area of polishing that enlarges.
2. This automobile shell polishes automatic enlargement area of polishing and prevents to block up the device, when removing left through the roller, there is a decurrent pressure to the sloping piece, thereby oppress the sloping piece and remove downwards, and then promote the collecting board also and remove downwards, thereby there is a decurrent pulling force to the fan, thereby the inside gathering elastic potential energy of fan, prepare for the resetting of collecting board, reduce because of the kicking block constantly enlarges simultaneously, thereby make the collecting board constantly reciprocate, and then make constantly to be collected from the collecting board inside hole by absorptive waste material, thereby reach the effect that prevents the collecting board inside hole from being blockked up by the waste material.
Drawings
FIG. 1 is a front cross-sectional view of the housing structure of the present invention;
FIG. 2 is a partial cross-sectional view of the top block construction of the present invention;
FIG. 3 is a partial cross-sectional view of the extension spring configuration of the present invention;
FIG. 4 is a partial cross-sectional view of the roller construction of the present invention;
FIG. 5 is a partial cross-sectional view of a slider structure according to the present invention.
In the figure: 1. a housing; 2. a rotating shaft; 3. an extension spring; 4. a top block; 5. a guide post; 6. a connecting rod; 7. a slider; 8. a compression spring; 9. a fixed block; 10. a pressure spring; 11. a polishing mechanism; 12. a stress block; 13. a baffle plate; 14. a return spring; 15. a roller; 16. a ramp block; 17. a collection plate; 18. a vibrating spring; 19. a fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an automatic polishing area enlarging and blockage preventing device for polishing a car shell comprises a housing 1, a rotating shaft 2 movably connected to the upper end of the inner wall of the housing 1, an extension spring 3 connected to the left end of the rotating shaft 2, two extension springs 3 respectively located at the left and right ends of the rotating shaft 2, an extension spring 3 located at the upper end of 19, a top block 4 fixedly connected to the left end of the extension spring 3, a guide post 5 fixedly connected to the lower end of the rotating shaft 2, a connecting rod 6 fixedly connected to the lower end of the guide post 5, two connecting rods 6 respectively located at the left and right ends of the guide post 5, and the connecting rod 6 located at the right end of 19, wherein when the operation is started, an external driving source is turned on, so that the rotating shaft 2 starts to rotate with the guide post 5 during the rotation, so that the guide post 5 during the rotation, drive connecting rod 6 and rotate together, be in indirect connection because of connecting rod 6 and grinding machanism 11, thereby drive grinding machanism 11 and rotate together, at grinding machanism 11 rotation in-process, polish car shell, when inside is polished and is makeed shell surface friction coefficient to reduce, thereby grinding machanism 11 moves left under the effect of force, thereby the area makes grinding machanism 11 have a pressure left to compression spring 8, make the compression of the inside atress of compression spring 8, and then inside gathering elastic potential energy, prepare for grinding machanism 11's restoration, when grinding machanism 11 moves left simultaneously, along with pressure spring 10 to grinding machanism 11's pressure, thereby make grinding machanism 11 polish to the place that the shell has not yet polished, thereby reach the effect of automatic enlargement area of polishing.
Meanwhile, the lower end of the connecting rod 6 is fixedly connected with a slide block 7, the right end of the slide block 7 is movably connected with a compression spring 8, the lower end of the slide block 7 is movably connected with a fixed block 9, the lower end of the fixed block 9 is fixedly connected with a pressure spring 10, the lower end of the pressure spring 10 is fixedly connected with a polishing mechanism 11, the two polishing mechanisms 11 are respectively positioned at the left end and the right end of the guide pillar 5, the lower end of the polishing mechanism 11 is contacted with a polishing part, the left end of the top block 4 is movably connected with a stress block 12, the left end of the stress block 12 is fixedly connected with a baffle 13, the left end of the baffle 13 is fixedly connected with a return spring 14, the two return springs 14 are respectively positioned at the upper end and the lower end of the baffle 13, the lower end of the baffle 13 is fixedly connected with a roller 15, the lower end of the roller 15 is movably connected with a slope block 16, the lower end of the slope block 16 is fixedly connected with a collecting plate 17, and simultaneously in the rotating process of the rotating shaft 2, because the friction between the grinding mechanism 11 and the automobile shell is always changed during grinding, the rotating speed of the rotating shaft 2 is also changed, the centrifugal force borne by the top block 4 is also changed, the top block 4 is continuously moved leftwards and rightwards under the connecting action of the extension spring 3, when the top block 4 is enlarged leftwards, the left thrust is exerted on the stress block 12, the stress block 12 is pushed leftwards, when the stress block 12 is moved leftwards, the left thrust is exerted on the baffle 13, the baffle 13 is pushed leftwards, the baffle 13 has pressure on the reset spring 14, the internal stress of the reset spring 14 is compressed, the elastic potential energy is accumulated inside, the reset of the baffle 13 is prepared, when the baffle 13 is moved leftwards, the roller 15 is driven to move leftwards together, because the upper end of the slope block 16 is a slope surface, when the roller 15 moves leftwards, there is a decurrent pressure to slope piece 16, thereby oppress slope piece 16 and remove downwards, and then promote collecting plate 17 and also remove downwards, thereby there is a decurrent pulling force to vibrations spring 18, thereby the inside elastic potential energy that gathers of vibrations spring 18, prepare for collecting plate 17's restoration, simultaneously because of kicking block 4 constantly enlarges and reduces, thereby make collecting plate 17 constantly reciprocate, and then make the waste material absorbed by fan 19 constantly collect from collecting plate 17 inside hole, thereby reach the effect that prevents collecting plate 17 inside hole by the waste material jam, collecting plate 17 upper end fixedly connected with vibrations spring 18 simultaneously, slope piece 16 right-hand member swing joint has fan 19, fan 19 has two to be located guide pillar 5 left and right ends respectively, fan 19 communicates with each other with collecting plate 17 inside hole.
The working principle is as follows: when the automobile grinding device works, an external driving source is opened at the moment, so that the rotating shaft 2 starts to rotate, and further the rotating shaft 2 is enabled to drive the guide post 5 to rotate together in the rotating process, so that the guide post 5 drives the connecting rod 6 to rotate together in the rotating process, the grinding mechanism 11 is driven to rotate together due to the fact that the connecting rod 6 is indirectly connected with the grinding mechanism 11, the automobile shell is ground in the rotating process of the grinding mechanism 11, when the friction coefficient of the surface of the shell is reduced due to internal grinding, the grinding mechanism 11 moves leftwards under the action of force, so that the grinding mechanism 11 has leftward pressure on the compression spring 8, the compression spring 8 is compressed by stress, and elastic potential energy is accumulated inside the automobile shell to prepare for resetting of the grinding mechanism 11, and meanwhile, when the grinding mechanism 11 moves leftwards, along with the pressure of the pressure spring 10 on the grinding mechanism 11, therefore, the grinding mechanism 11 grinds the place where the shell is not ground yet, so that the effect of automatically expanding the grinding area is achieved, meanwhile, in the rotating process of the rotating shaft 2, friction between the grinding mechanism 11 and the automobile shell is constantly changed during grinding, so that the rotating speed of the rotating shaft 2 is also changed, the centrifugal force borne by the top block 4 is also changed, the top block 4 is constantly moved leftwards and rightwards under the connecting action of the extension spring 3, when the top block 4 is enlarged leftwards, the left thrust is exerted on the stress block 12, the stress block 12 is pushed to move leftwards, when the stress block 12 moves leftwards, the left thrust is exerted on the baffle 13, so that the baffle 13 is pushed to move leftwards, further, the baffle 13 has pressure on the reset spring 14, the internal stress of the reset spring 14 is compressed, and the internal elastic potential energy is gathered, prepare for the restoration of baffle 13, simultaneously when baffle 13 moves left, drive roller 15 and move left together, because of the ramp piece 16 upper end is the slope, thereby when roller 15 moves left, there is a decurrent pressure to ramp piece 16, thereby oppress ramp piece 16 and move down, and then promote collecting plate 17 and also move down, thereby there is a decurrent pulling force to vibrations spring 18, thereby the inside gathering elastic potential energy of vibrations spring 18, prepare for the restoration of collecting plate 17, simultaneously because of the constantly expanding of kicking block 4 reduces, thereby make collecting plate 17 constantly reciprocate, and then make the waste material absorbed by fan 19 constantly collect from collecting plate 17 inside hole, thereby reach the effect that prevents the inside hole of collecting plate 17 from being blockked up by the waste material.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an automobile shell polishes and enlarges the area of polishing automatically and prevent to block up the device, includes casing (1), its characterized in that: the upper end of the inner wall of the shell (1) is movably connected with a rotating shaft (2), the left end pipeline of the rotating shaft (2) is connected with an extension spring (3), the left end of the extension spring (3) is fixedly connected with a top block (4), the lower end of the rotating shaft (2) is fixedly connected with a guide post (5), the lower end of the guide post (5) is fixedly connected with a connecting rod (6), the lower end of the connecting rod (6) is fixedly connected with a sliding block (7), the right end of the sliding block (7) is movably connected with a compression spring (8), the lower end of the slide block (7) is movably connected with a fixed block (9), the lower end of the fixed block (9) is fixedly connected with a pressure spring (10), the lower end of the pressure spring (10) is fixedly connected with a polishing mechanism (11), the left end of the top block (4) is movably connected with a stress block (12), the left end of the stress block (12) is fixedly connected with a baffle (13), a return spring (14) is fixedly connected at the left end of the baffle (13), the lower end of the baffle (13) is fixedly connected with a roller (15), the lower end of the roller (15) is movably connected with a slope block (16), the lower end of the slope block (16) is fixedly connected with a collecting plate (17), the upper end of the collecting plate (17) is fixedly connected with a vibration spring (18), the right end of the slope block (16) is movably connected with a fan (19).
2. The automobile shell polishing device capable of automatically enlarging polishing area and preventing blockage according to claim 1, wherein: the number of the extension springs (3) is two, the extension springs are respectively located at the left end and the right end of the rotating shaft (2), and the extension springs (3) are located at the upper end of the fan (19).
3. The device for automatically enlarging the polishing area and preventing the blockage of the automobile shell according to claim 1, wherein: the two connecting rods (6) are respectively positioned at the left end and the right end of the guide post (5), and the connecting rod (6) is positioned at the right end of the fan (19).
4. The device for automatically enlarging the polishing area and preventing the blockage of the automobile shell according to claim 1, wherein: the two grinding mechanisms (11) are respectively positioned at the left end and the right end of the guide pillar (5), and the lower ends of the grinding mechanisms (11) are in contact with a grinding part.
5. The automobile shell polishing device capable of automatically enlarging polishing area and preventing blockage according to claim 1, wherein: the two fans (19) are respectively positioned at the left end and the right end of the guide post (5), and the fans (19) are communicated with the inner holes of the collecting plate (17).
6. The automobile shell polishing device capable of automatically enlarging polishing area and preventing blockage according to claim 1, wherein: the number of the reset springs (14) is two, the two reset springs are respectively located at the upper end and the lower end of the baffle (13), and the reset springs (14) are located at the left end of the inner wall of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210883813.4A CN115338749B (en) | 2022-07-26 | 2022-07-26 | Automobile shell polishing device capable of automatically enlarging polishing area and preventing blockage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210883813.4A CN115338749B (en) | 2022-07-26 | 2022-07-26 | Automobile shell polishing device capable of automatically enlarging polishing area and preventing blockage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115338749A true CN115338749A (en) | 2022-11-15 |
| CN115338749B CN115338749B (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210883813.4A Active CN115338749B (en) | 2022-07-26 | 2022-07-26 | Automobile shell polishing device capable of automatically enlarging polishing area and preventing blockage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115338749B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2192888A1 (en) * | 1995-12-13 | 1997-06-14 | John E. Nemazi | Rotary drum sander |
| CA2544958A1 (en) * | 2005-05-13 | 2006-11-13 | Black & Decker Inc. | Angle grinder |
| CN104039505A (en) * | 2012-04-25 | 2014-09-10 | 新东工业株式会社 | Centrifugal barrel polishing machine and polishing method |
| CN104723223A (en) * | 2015-03-13 | 2015-06-24 | 上海洪铺钢结构工程有限公司 | Pipeline inner wall rust removal device |
| CN109290912A (en) * | 2018-12-12 | 2019-02-01 | 贵州自游悦行汽车服务有限责任公司 | Automobile maintenance dust suction electric grinder device |
| CN112792692A (en) * | 2020-12-31 | 2021-05-14 | 宜都市鹏信光电机械有限公司 | Temperature control type grinding machine with high polishing precision |
| CN112847034A (en) * | 2021-01-27 | 2021-05-28 | 蔡少钗 | Device for automatically enlarging polishing area during polishing of information terminal shell |
| CN113941401A (en) * | 2021-10-13 | 2022-01-18 | 嘉兴市贤亿沓科技有限公司 | Nanometer sanding device and method for sanding new material |
-
2022
- 2022-07-26 CN CN202210883813.4A patent/CN115338749B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2192888A1 (en) * | 1995-12-13 | 1997-06-14 | John E. Nemazi | Rotary drum sander |
| CA2544958A1 (en) * | 2005-05-13 | 2006-11-13 | Black & Decker Inc. | Angle grinder |
| CN104039505A (en) * | 2012-04-25 | 2014-09-10 | 新东工业株式会社 | Centrifugal barrel polishing machine and polishing method |
| CN104723223A (en) * | 2015-03-13 | 2015-06-24 | 上海洪铺钢结构工程有限公司 | Pipeline inner wall rust removal device |
| CN109290912A (en) * | 2018-12-12 | 2019-02-01 | 贵州自游悦行汽车服务有限责任公司 | Automobile maintenance dust suction electric grinder device |
| CN112792692A (en) * | 2020-12-31 | 2021-05-14 | 宜都市鹏信光电机械有限公司 | Temperature control type grinding machine with high polishing precision |
| CN112847034A (en) * | 2021-01-27 | 2021-05-28 | 蔡少钗 | Device for automatically enlarging polishing area during polishing of information terminal shell |
| CN113941401A (en) * | 2021-10-13 | 2022-01-18 | 嘉兴市贤亿沓科技有限公司 | Nanometer sanding device and method for sanding new material |
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| Publication number | Publication date |
|---|---|
| CN115338749B (en) | 2023-08-25 |
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