CN111451950A - Rocker arm feeding type grinding disc manufacturing device - Google Patents
Rocker arm feeding type grinding disc manufacturing device Download PDFInfo
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- CN111451950A CN111451950A CN202010294281.1A CN202010294281A CN111451950A CN 111451950 A CN111451950 A CN 111451950A CN 202010294281 A CN202010294281 A CN 202010294281A CN 111451950 A CN111451950 A CN 111451950A
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- gear
- rocker arm
- plate
- grinding
- grinding disc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/009—Tools not otherwise provided for
Abstract
The invention discloses a rocker arm feeding type grinding disc preparation device which comprises a grinding disc, a feeding device, a material removing device and a rocker arm mechanism, wherein the feeding device is arranged on the grinding disc; the grinding disc comprises a linear driving cylinder, a semiconductor refrigerating sheet, a movable plate, a positive electrode, a cylindrical shell, a grinding base plate and a cylindrical bottom plate, the rocker arm mechanism comprises a shaking motor, a movable plate, a rocker arm, a first gear, a second gear and a middle shaft, and the feeding device and the material removing device are fixed on the movable plate; the invention can utilize the continuous motion of the rocker arm mechanism to drive the discharging device on the movable plate to continuously reciprocate, thereby keeping the materials in the discharging device in a mixed state constantly and ensuring the full mixing of the liquid metal polishing solution; set up a plurality of evenly distributed's arch on the cylinder roof of abrasive disc for it has stop gear after liquid metal polishing liquid solidification shaping, guarantees that the abrasive disc that forms after the liquid metal polishing liquid solidification can not drop or throw off from the cylinder roof top.
Description
Technical Field
The invention relates to the field of liquid metal polishing, in particular to a rocker arm feeding type grinding disc manufacturing device.
Background
Lapping is a finishing process (e.g., cutting) of a work surface by relative motion of a grinding tool and a work piece under a certain pressure using abrasive particles coated or pressed on the grinding tool. Abrasive particles of the grinding disc are pressed into the surface of the grinding disc, and the exposed abrasive particle tips are used for etching the surface of a workpiece, so that micro-cutting machining is realized. When the sharp part of the abrasive particles is worn away, a new grinding sheet needs to be replaced, and the replaced grinding sheet is directly discarded, so that the material is wasted, and the material recovery and utilization are not facilitated. The prior grinding sheet can rub the surface of a workpiece when the workpiece is ground, a large amount of heat is generated, the surface of the workpiece is easily softened and deformed due to the large amount of heat, the structure of the workpiece is damaged, and a lot of waste parts can be generated.
The existing grinding sheet is generally manufactured by using grinding materials, fillers and glue solution as mixed liquid and sintering or pressing the mixed liquid to prepare the grinding sheet. The grinding disc has the advantages of poor processing environment, high processing temperature, high requirements on processing equipment and long growth and manufacturing time, so that the manufactured grinding disc has poor precision and higher deviation.
Liquid metal is generally referred to as a low melting point alloy material. The liquid metal has high strength which is 3 times that of stainless steel, more than 10 times that of aluminum and magnesium alloy and more than 1.5 times that of titanium alloy. The liquid metal has strong hardness, so that the liquid metal can be widely applied in the field of wear resistance or scratch resistance. The liquid metal generally refers to an alloy functional material which is in a liquid state at normal temperature, such as a metal with a melting point below 30 ℃ and an alloy material thereof, and also includes a low-melting-point alloy material which is in a liquid state in a working temperature region of 40-300 ℃. The liquid metal grinding disc is a grinding disc made of liquid metal, the melting point of the grinding disc made of the liquid metal is low, and after abrasive particles on the grinding disc are worn out, the grinding disc can be melted to recycle the liquid metal to be made into a new grinding disc.
Disclosure of Invention
The invention aims to solve the problems of complex processing technology, material waste, non-recoverability and poor precision in the existing grinding disc manufacturing process, and provides a rocker arm feeding type grinding disc manufacturing device. The process for manufacturing the grinding disc is simple, the material cannot be wasted, the worn grinding disc can be recycled, and the manufactured grinding disc is high in precision.
The invention realizes the purpose through the following technical scheme: a rocker arm feeding type grinding disc preparation device comprises a grinding disc, a feeding device, a material removing device and a rocker arm mechanism;
the grinding disc comprises a linear driving cylinder, a semiconductor refrigerating sheet, a movable plate, a positive electrode, a cylindrical shell, a grinding base plate and a cylindrical bottom plate, the cylindrical bottom plate is fixed at the bottom of the vertically arranged cylindrical shell, the linear driving cylinder is fixed on the cylindrical bottom plate, an output shaft of the linear driving cylinder is vertically arranged, the upper end of the output shaft of the linear driving cylinder is connected with the bottom of the movable plate, the movable plate is a horizontally arranged piston-type circular plate, the periphery of the movable plate is hermetically connected with the inner wall of the cylindrical shell through an O-shaped sealing ring, the semiconductor refrigerating sheet is fixed above the movable plate, and the positive electrode is fixed above the semiconductor refrigerating sheet; the grinding base plate is fixed at the upper end of the cylindrical shell, and the edge of the grinding base plate is fixedly connected with the inner wall of the cylindrical shell; a plurality of through holes which penetrate through the grinding base plate up and down and bulges which are uniformly distributed are arranged on the grinding base plate; liquid metal polishing solution is filled in the cylindrical shell between the grinding base plate and the moving plate; when the linear driving cylinder moves, the whole body consisting of the moving plate, the semiconductor refrigerating sheet and the positive electrode is pushed to move upwards, and the liquid metal polishing solution is driven to move upwards and seep upwards from the through hole of the grinding base plate until the protrusions on the grinding base plate are submerged;
the rocker arm mechanism comprises a rocking motor, a movable plate, a rocker arm, a first gear, a second gear and a middle shaft, wherein one end of the rocker arm is hinged to the ground, and the other end of the rocker arm is hinged to the middle part of the movable plate; the middle part of the rocker arm is provided with a strip-shaped groove, the middle part shaft is fixed on the side surface of the first gear, the axis of the middle part shaft and the axis of the first gear are not on the same straight line, the first gear and the second gear are installed on the same vertical installation plate, the output shaft of the shaking motor is connected with the second gear, the first gear is meshed with the second gear, the second gear drives the first gear to rotate when the shaking electrode moves, the first gear drives the middle part shaft to do circular motion around the axis of the first gear when rotating, and further the rocker arm is driven to periodically swing around the hinge point of the rocker arm and the ground; the other end of the movable plate is hinged to the workbench, and the feeding device and the material removing device are fixed on the movable plate;
the discharging device comprises a hopper, a hopper cover and a discharging motor, the hopper is fixed on the movable plate, a discharging port of the hopper is opposite to the grinding disc, the hopper cover is arranged on the hopper, the discharging motor is connected with the hopper cover, and the hopper cover is controlled to move away from the feeding port of the hopper when the discharging motor moves;
the material removing device comprises an air suction port, an air pipe, a dust storage barrel, a driving motor and a fan, wherein the driving motor is arranged inside the dust storage barrel, one end of the air pipe is connected with the dust removal barrel, the other end of the air pipe is connected with the air suction port, the driving motor is connected with the fan through an output shaft, the driving motor drives the fan to rotate when moving, the air suction port at the other end of the air pipe generates suction force, and dust or materials above a top plate of the air cylinder are sucked away.
Furthermore, the inner side surface of the upper end of the cylindrical shell is also provided with a plurality of transverse bulges which are uniformly distributed.
The specific working process of the invention is as follows: before the plate making is started, the rocker arm mechanism does not stop moving to drive the discharging device on the movable plate to do continuous reciprocating motion, so that the materials in the discharging device are kept in a mixed state all the time, and the liquid metal polishing solution is fully mixed.
When the grinding disc is manufactured initially, after the whole device is installed, the linear driving air cylinder is started, and pushes the braking device to move upwards; pushing the liquid metal polishing solution upwards, wherein the liquid metal polishing solution is pushed into a circular groove formed by the upper end of the cylinder barrel and the cylinder top plate through a through hole of the cylinder top plate along with the pushing of the braking device; starting the heating function of the semiconductor refrigerating sheet, generating heat when the semiconductor refrigerating sheet is started, transmitting the heat to the liquid metal polishing solution to enable the liquid metal polishing solution to be in a liquefied state, starting the positive electrode, enabling the positive electrode to generate a magnetic field and enabling metal particles in the liquid metal polishing solution to move along the direction of the magnetic field, when the liquid metal polishing solution on the top plate of the air cylinder has a certain amount, scattering a certain amount of abrasive particles into the liquid metal polishing solution, and driving the abrasive particles to move together when the metal particles in the liquid metal polishing solution move, so that the abrasive particles are distributed in the liquid metal polishing solution more uniformly; when the abrasive particles are added and uniformly mixed into the liquid metal polishing solution, switching the semiconductor refrigerating sheet to a refrigerating state to promote the liquid metal polishing solution on the top plate of the cylinder to be rapidly cooled, and forming a grinding sheet above the top plate of the cylinder; because the liquid metal is cooled from the liquid state to the solid state in the primary state, the surface of the grinding sheet can be ensured to be flat to a great extent.
When the grinding disc is initially finished to grind and process, the refrigerating function of the semiconductor refrigerating sheet is started as required, and as the grinding sheet generates more heat during processing, the semiconductor refrigerating sheet absorbs the part of heat, so that the liquid metal substrate is prevented from being melted. When the grinding disc is machined for a plurality of times, and the surface is abraded more, self-repairing can be carried out, namely the heating function of the semiconductor refrigerating sheet melts the liquid metal polishing liquid on the surface of the grinding layer and the liquid metal polishing liquid is pushed upwards by the linear driving cylinder, more liquid metal polishing liquid is pushed into a circular groove formed by the upper end of the cylinder barrel and the cylinder top plate through the through hole of the cylinder top plate along with the pushing of the braking device, a new grinding sheet is generated, and therefore the self-trimming of the grinding disc is achieved. In the application, the upper part of the movable plate needs to be sealed, and the lower part does not need to be sealed, so that the heat dissipation or the heat absorption of the other surface of the semiconductor refrigeration sheet are facilitated.
When the grinding disc is initially manufactured or used in the middle, nearby dust and residual materials are sucked away by the aid of the material removing device arranged above the manufactured grinding sheet, the surface of the grinding disc is kept clean, and the flatness of the surface of the manufactured grinding disc is guaranteed to a great extent.
The invention has the following beneficial effects:
1. the invention can utilize the continuous motion of the rocker arm mechanism to drive the discharging device on the movable plate to continuously reciprocate, thereby keeping the materials in the discharging device in a mixed state constantly and ensuring the full mixing of the liquid metal polishing solution.
2. According to the invention, the plurality of uniformly distributed bulges are arranged on the cylinder top plate of the grinding disc, so that the liquid metal polishing solution has a limiting mechanism after solidification and forming, the grinding sheet formed after solidification of the liquid metal polishing solution cannot fall off or fall off from the upper part of the cylinder top plate, and the stability of the liquid metal polishing solution after solidification and forming is ensured.
3. The invention utilizes the mode that the liquid metal polishing solution moves up and down under the pushing action of the braking device, and can quickly and accurately position the liquid level height of the liquid metal polishing solution when the grinding sheet is manufactured, namely position the thickness of the generated grinding sheet; meanwhile, the rapid cooling of the braking device is utilized to promote the solidification of the liquid metal polishing solution, and the generation process of the grinding disc is accelerated.
4. The mode of manufacturing the grinding disc adopts the cooling solidification of the liquid metal polishing solution, the self-leveling of the grinding disc can be realized in the forming process, and the surface of the grinding disc has high flatness after the liquid is directly converted into the solid.
5. The hardness of the grinding disc can be adjusted only by adjusting the concentration of the particles in the liquid metal polishing solution, so that the hardness of the grinding disc can be adjusted, and the hardness of the grinding disc can be adjusted by increasing the concentration of the particles in the liquid metal polishing solution according to actual requirements in actual processing.
6. The grinding disc can realize quick repair, the heating wire of the heating layer is started to melt the liquid metal polishing solution on the surface of the grinding disc, and then new liquid metal polishing solution is injected to realize the quick repair of the grinding layer.
7. The grinding disc can realize self-repairing, the electric heating wire of the heating layer is started to melt the liquid metal polishing solution on the surface of the grinding disc, the electrode group is used for driving metal ions to move, abrasive particles are pushed to move, new edges of the abrasive particles are exposed out of the surface of the grinding sheet, and the self-repairing of the grinding layer can be realized.
8. The grinding disc can continuously absorb heat by using the refrigerating device in the processing process, and the grinding disc is prevented from being liquefied due to overheating in the processing process so as to reduce the grinding and polishing effect.
9. The invention utilizes the material removing device to suck away dust and waste materials above the cylinder plate in the production process of the grinding disc, reduces errors of the grinding and polishing disc in the processing process and improves the surface quality of workpieces.
10. The invention can quickly generate the grinding sheet made of the liquid metal polishing solution, has simple process for manufacturing the grinding disc, does not waste materials, can recycle the worn grinding disc, and has higher precision of the manufactured grinding disc.
Drawings
Fig. 1 is a schematic overall structure diagram of a rocker arm feeding type grinding disc manufacturing device.
FIG. 2 is a schematic view of the overall structure of the polishing disk of the present invention.
In the figure, 1-grinding disc, 2-hopper cover, 3-hopper, 4-dust storage barrel, 5-linear driving cylinder, 6-moving plate, 7-semiconductor refrigeration piece, 8-positive electrode, 9-cylindrical shell, 10-grinding base plate, 11-cylindrical bottom plate, 12-moving plate, 13-rocker arm, 14-first gear, 15-second gear, 16-middle shaft, 17-air pipe, 18-driving motor and 19-fan.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-2, a rocker arm feeding type grinding disc preparation device comprises a grinding disc 1, a feeding device, a material removing device and a rocker arm 13 mechanism; the grinding disc 1 comprises a linear driving cylinder 5, a semiconductor refrigerating sheet 7, a moving plate 9, a positive electrode 8, a cylindrical shell 9, a grinding base plate 10 and a cylindrical bottom plate 11, the cylindrical bottom plate 11 is fixed at the bottom of the vertically arranged cylindrical shell 9, the linear driving cylinder 5 is fixed on the cylindrical bottom plate 11, an output shaft of the linear driving cylinder 5 is vertically arranged, the upper end of the output shaft of the linear driving cylinder 5 is connected with the bottom of the moving plate 9, the moving plate 9 is a horizontally arranged piston-type circular plate, the periphery of the moving plate 9 is hermetically connected with the inner wall of the cylindrical shell 9 through an O-shaped sealing ring, the semiconductor refrigerating sheet 7 is fixed above the moving plate 9, and the positive electrode 8 is fixed above the semiconductor refrigerating sheet 7; the grinding base plate 10 is fixed at the upper end of the cylindrical shell 9, and the edge of the grinding base plate 10 is fixedly connected with the inner wall of the cylindrical shell 9; a plurality of through holes which penetrate through the grinding base plate 10 from top to bottom and bulges which are uniformly distributed are arranged on the grinding base plate; a liquid metal polishing solution is filled in the cylindrical shell 9 between the grinding base plate 10 and the moving plate 9; when the linear driving cylinder 5 moves, the whole body formed by the movable plate 9, the semiconductor refrigerating sheet 7 and the positive electrode 8 is pushed to move upwards, and the liquid metal polishing solution is driven to move upwards and seep upwards through the through hole of the grinding base plate 10 until the bulge on the grinding base plate 10 is submerged.
The rocker arm 13 mechanism comprises a rocking motor, a movable plate 12, a rocker arm 13, a first gear 14, a second gear 15 and a middle shaft 16, one end of the rocker arm 13 is hinged on the ground, and the other end of the rocker arm 13 is hinged in the middle of the movable plate 12; a strip-shaped groove is formed in the middle of the rocker arm 13, a middle shaft 16 is fixed on the side face of the first gear 14, the axis of the middle shaft 16 is not on the same straight line with the axis of the first gear 14, the first gear 14 and the second gear 15 are installed on the same vertical installation plate, the output shaft of the shaking motor is connected with the second gear 15, the first gear 14 is meshed with the second gear 15, the first gear 14 is driven to rotate through the second gear 15 when the shaking electrode moves, the middle shaft 16 is driven to do circular motion around the axis of the first gear 14 when the first gear 14 rotates, and then the rocker arm 13 is driven to periodically swing around the hinge point of the rocker arm 13 and the ground; the other end of the movable plate 12 is hinged on the workbench, and the feeding device and the material removing device are both fixed on the movable plate 12.
Discharging device includes hopper 3, 3 lids 2 of hopper, ejection of compact motor, and hopper 3 fixes on fly leaf 12, and the discharge gate of hopper 3 is to abrasive disc 1, 3 lids 2 of hopper set up on hopper 3, and 3 lids 2 of hopper are connected to the ejection of compact motor, and 3 lids 2 of control hopper move away from the feed inlet department of hopper 3 during the ejection of compact motor motion.
The material removing device comprises an air suction port, an air pipe 17, a dust storage barrel 4, a driving motor 18 and a fan 19, wherein the driving motor 18 is arranged inside the dust storage barrel 4, one end of the air pipe 17 is connected with the dust removal barrel, the other end of the air pipe 17 is connected with the air suction port, an output shaft of the driving motor 18 is connected with the fan 19, the driving motor 18 drives the fan 19 to rotate when moving, the air suction port at the other end of the air pipe 17 generates suction force, and dust or materials above a top plate of the air cylinder are sucked away.
The inner side surface of the upper end of the cylindrical shell 9 is also provided with a plurality of uniformly distributed transverse bulges.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, which should be considered to fall within the protection scope of the patent of the present invention.
Claims (2)
1. The utility model provides a rocking arm pay-off formula abrasive disc preparation facilities which characterized in that: comprises a grinding disc (1), a feeding device, a material removing device and a rocker arm (13) mechanism; the grinding disc (1) comprises a linear driving cylinder (5), a semiconductor refrigerating sheet (7), a moving plate (9), a positive electrode (8), a cylindrical shell (9), a grinding base plate (10) and a cylindrical bottom plate (11), the cylindrical bottom plate (11) is fixed at the bottom of the vertically arranged cylindrical shell (9), the linear driving cylinder (5) is fixed on the cylindrical bottom plate (11), the output shaft of the linear driving cylinder (5) is vertically arranged, the upper end of an output shaft of the linear driving cylinder (5) is connected with the bottom of the movable plate (9), the moving plate (9) is a piston-type circular plate which is horizontally arranged, the periphery of the moving plate (9) is hermetically connected with the inner wall of the cylindrical shell (9) through an O-shaped sealing ring, the semiconductor refrigerating sheet (7) is fixed above the moving plate (9), and the positive electrode (8) is fixed above the semiconductor refrigerating sheet (7); the grinding base plate (10) is fixed at the upper end of the cylindrical shell (9), and the edge of the grinding base plate (10) is fixedly connected with the inner wall of the cylindrical shell (9); a plurality of through holes which penetrate through the grinding base plate (10) up and down and bulges which are uniformly distributed are arranged on the grinding base plate; liquid metal polishing solution is filled in the cylindrical shell (9) between the grinding base plate (10) and the moving plate (9); when the linear driving cylinder (5) moves, the whole body consisting of the moving plate (9), the semiconductor refrigerating sheet (7) and the positive electrode (8) is pushed to move upwards, and the liquid metal polishing solution is driven to move upwards and seep upwards from the through hole of the grinding base plate (10) until the protrusions on the grinding base plate (10) are submerged;
the rocker arm (13) mechanism comprises a rocking motor, a movable plate (12), a rocker arm (13), a first gear (14), a second gear (15) and a middle shaft (16), one end of the rocker arm (13) is hinged to the ground, and the other end of the rocker arm (13) is hinged to the middle of the movable plate (12); a strip-shaped groove is formed in the middle of the rocker arm (13), a middle shaft (16) is fixed to the side face of the first gear (14), the axis of the middle shaft (16) is not in the same straight line with the axis of the first gear (14), the first gear (14) and the second gear (15) are installed on the same vertical installation plate, the output shaft of a shaking motor is connected with the second gear (15), the first gear (14) is meshed with the second gear (15), the first gear (14) is driven to rotate through the second gear (15) when the electrodes are shaken to move, the middle shaft (16) is driven to do circular motion around the axis of the first gear (14) when the first gear (14) rotates, and then the rocker arm (13) is driven to periodically swing around the hinge point of the rocker arm (13) and the ground; the other end of the movable plate (12) is hinged on the workbench, and the feeding device and the material removing device are fixed on the movable plate (12);
the discharging device comprises a hopper (3), a hopper (3) cover (2) and a discharging motor, the hopper (3) is fixed on a movable plate (12), a discharging port of the hopper (3) is opposite to the grinding disc (1), the hopper (3) cover (2) is arranged on the hopper (3), the discharging motor is connected with the hopper (3) cover (2), and the hopper (3) cover (2) is controlled to be moved away from the feeding port of the hopper (3) when the discharging motor moves;
remove the material device and include induction port, trachea (17), dust storage bucket (4), driving motor (18) and fan (19), driving motor (18) set up inside dust storage bucket (4), a dust removal section of thick bamboo is connected to the one end of trachea (17), and the induction port is connected to the other end of trachea (17), and driving motor's (18) output shaft connects fan (19), and driving motor (18) drive fan (19) when moving rotate, make the induction port of trachea (17) other end produce suction, siphons away the dust or the material of cylinder roof top.
2. The rocker-fed grinding disc manufacturing apparatus according to claim 1, characterized in that: the inner side surface of the upper end of the cylindrical shell (9) is also provided with a plurality of uniformly distributed transverse bulges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010294281.1A CN111451950B (en) | 2020-04-15 | 2020-04-15 | Rocker arm feeding type grinding disc manufacturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010294281.1A CN111451950B (en) | 2020-04-15 | 2020-04-15 | Rocker arm feeding type grinding disc manufacturing device |
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| CN111451950A true CN111451950A (en) | 2020-07-28 |
| CN111451950B CN111451950B (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010294281.1A Active CN111451950B (en) | 2020-04-15 | 2020-04-15 | Rocker arm feeding type grinding disc manufacturing device |
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| WO2003099519A1 (en) * | 2002-05-23 | 2003-12-04 | Nutool, Inc. | Polishing pad for electrochemical-mechanical polishing and methods to manufacture it |
| CN101636243A (en) * | 2007-03-20 | 2010-01-27 | 3M创新有限公司 | Abrasive product and preparation thereof and using method |
| CN108436743A (en) * | 2018-05-21 | 2018-08-24 | 浙江工业大学 | A kind of the liquid metal burnishing device and method of the two-way variation of electric field magnetic field |
| CN109514445A (en) * | 2018-11-26 | 2019-03-26 | 福建南安市众利宝进出口贸易有限公司 | A kind of production method and abrasive disk of abrasive disk |
| CN110405622A (en) * | 2019-07-08 | 2019-11-05 | 浙江工业大学 | A kind of Novel arc swinging plane grinding device |
| CN209812097U (en) * | 2019-01-21 | 2019-12-20 | 湖南省方圆磨料磨具有限公司 | Automatic change emery wheel manufacture equipment |
-
2020
- 2020-04-15 CN CN202010294281.1A patent/CN111451950B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003099519A1 (en) * | 2002-05-23 | 2003-12-04 | Nutool, Inc. | Polishing pad for electrochemical-mechanical polishing and methods to manufacture it |
| CN101636243A (en) * | 2007-03-20 | 2010-01-27 | 3M创新有限公司 | Abrasive product and preparation thereof and using method |
| CN108436743A (en) * | 2018-05-21 | 2018-08-24 | 浙江工业大学 | A kind of the liquid metal burnishing device and method of the two-way variation of electric field magnetic field |
| CN109514445A (en) * | 2018-11-26 | 2019-03-26 | 福建南安市众利宝进出口贸易有限公司 | A kind of production method and abrasive disk of abrasive disk |
| CN209812097U (en) * | 2019-01-21 | 2019-12-20 | 湖南省方圆磨料磨具有限公司 | Automatic change emery wheel manufacture equipment |
| CN110405622A (en) * | 2019-07-08 | 2019-11-05 | 浙江工业大学 | A kind of Novel arc swinging plane grinding device |
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