CN211992528U - Self-repairing liquid metal grinding disc - Google Patents

Self-repairing liquid metal grinding disc Download PDF

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Publication number
CN211992528U
CN211992528U CN202020554770.1U CN202020554770U CN211992528U CN 211992528 U CN211992528 U CN 211992528U CN 202020554770 U CN202020554770 U CN 202020554770U CN 211992528 U CN211992528 U CN 211992528U
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layer
liquid
grinding
grinding disc
liquid metal
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CN202020554770.1U
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张丽阳
张利
单晓杭
叶必卿
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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Abstract

The utility model discloses a self-repairing liquid metal grinding disc, including rotary drive base, abrasive disc, linear feed device, reservoir, drawing liquid pump, drawing liquid pipeline, hydrojet pipeline and hydrojet shower nozzle, the abrasive disc is installed above the rotary drive base, and linear feed device sets up in one side of abrasive disc, the hydrojet shower nozzle sets up in the top of abrasive disc, and linear feed device during operation drives the hydrojet shower nozzle and makes straight reciprocating motion along a radius of abrasive disc, and the drawing liquid pump utilizes the drawing liquid pipeline to take out the liquid metal polishing solution in the reservoir to send into the blowout of hydrojet shower nozzle through the hydrojet pipeline, spout the surface of abrasive disc by the hydrojet shower nozzle; the utility model discloses can generate the polishing layer after the liquid metal polish solidification on the abrasive disc, the simple process of preparation abrasive disc can not produce extravagantly to the material, and the abrasive disc of wearing and tearing also can retrieve reuse, and the abrasive disc precision of producing is higher.

Description

Self-repairing liquid metal grinding disc
Technical Field
The utility model relates to a liquid metal polishing field, more specifically the theory that says so especially relates to a from repairing formula liquid metal abrasive disc.
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.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that processing technology is complicated, extravagant material, can not retrieve and the precision is poor in the current abrasive disc manufacture process, provided a self-repairing formula liquid metal abrasive disc with high accuracy grinds throwing ability, the simple process of preparation abrasive disc can not produce extravagantly to the material, and the abrasive disc of wearing and tearing also can retrieve reuse, and the abrasive disc precision of producing is higher.
The utility model discloses a following technical scheme realizes above-mentioned purpose: a self-repairing liquid metal grinding disc comprises a rotary driving base, a grinding disc, a linear feeding device, a liquid storage tank, a liquid pump, a liquid pumping pipeline, a liquid spraying pipeline and a liquid spraying nozzle, wherein the grinding disc is installed above the rotary driving base; the input end of the liquid pump is connected with a liquid pumping pipeline, one end of the liquid pumping pipeline extends into a liquid storage tank filled with liquid metal polishing liquid, the output end of the liquid pump is connected with one end of a liquid spraying pipeline, and the other end of the liquid spraying pipeline is connected with a liquid spraying nozzle; the liquid spraying nozzles are arranged above the grinding disc, the linear feeding device drives the liquid spraying nozzles to do linear reciprocating motion along one radius of the grinding disc when working, the liquid pump pumps the liquid metal polishing liquid in the liquid storage tank by using the liquid pumping pipeline, the liquid metal polishing liquid is sent into the liquid spraying nozzles through the liquid spraying pipeline to be sprayed out, and the liquid metal polishing liquid is sprayed to the surface of the grinding disc by the liquid spraying nozzles;
the rotary driving base comprises a bottom base, a supporting frame, a rotating shaft and a rotating motor, a cavity for accommodating the supporting frame and the rotating motor is arranged in the bottom base, the rotating motor is fixed in the bottom base through the supporting frame, an output shaft of the rotating motor is connected with the lower end of the rotating shaft which is vertically arranged, and the upper end of the rotating shaft penetrates through the upper surface of the bottom base and is connected with the bottom of a horizontally arranged grinding disc;
the grinding disc is integrally cylindrical and comprises a cylindrical shell with a bottom, and a grinding layer, an electrode layer, a heat conduction layer, a refrigerating layer and a heating layer which are sequentially arranged in the cylindrical shell from top to bottom, wherein the bottom of the cylindrical shell is connected with the upper end of a rotating shaft, a plane bearing is fixed on the rotating shaft, and the plane bearing is arranged between the lower surface of the cylindrical shell and the upper surface of a bottom base; the grinding layer, the electrode layer, the heat conduction layer, the refrigerating layer and the heating layer are separated by partition plates respectively, the upper surface of the grinding layer is in the shape of an opening groove, the side surface of the opening groove is provided with uniformly distributed transverse bulges, and the bottom of the opening groove is uniformly distributed with longitudinal bulges; the electrode layer is arranged below the grinding layer, an electrode group is arranged in the electrode layer, the electrode group comprises fan-shaped positive electrodes with positive electrodes and fan-shaped negative electrodes with negative electrodes, the number of the fan-shaped positive electrodes and the number of the fan-shaped negative electrodes are equal, and the fan-shaped positive electrodes and the fan-shaped negative electrodes are sequentially and alternately distributed to form the whole electrode group; the heat conduction layer is arranged below the electrode layer, and heat conduction liquid with good heat conduction performance is filled in the heat conduction layer; the refrigeration layer is arranged below the heat conduction layer, a refrigeration device is arranged in the refrigeration layer, and a radiating pipe outlet of the refrigeration device is arranged on a cylindrical shell of the grinding disc on the side surface of the refrigeration layer; the zone of heating sets up in the below on refrigeration layer, and the inside heating wire that is provided with of zone of heating, the heating wire is the mosquito-repellent incense disk and fixes inside the zone of heating, be provided with the louvre that is used for the heat dissipation on the baffle between zone of heating and the refrigeration layer.
Furthermore, the clapboard among the grinding layer, the electrode layer, the heat conduction layer, the refrigeration layer and the heating layer is made of a disc-shaped material with good heat conduction function. The partition plate is made of glass fiber, asbestos, rock wool, silicate, a vacuum plate or a copper plate, an aluminum plate, a diamond plate and the like.
Further, the linear feeding device is a linear module or a linear cylinder or a screw driving system consisting of a ball screw and a linear guide rail.
Furthermore, the transverse bulges of the grinding layer are a plurality of rectangular bulges which are uniformly distributed along the inner wall of the outer side of the grinding layer; the vertical arch of grinding layer is a plurality of along the even distribution of grinding layer bottom, and vertical arch is the irregular arch of unanimous shape.
Further, sealing connection between the layer of grinding layer, electrode layer, heat-conducting layer, refrigeration layer and zone of heating, the equal fixed connection of baffle between grinding layer, electrode layer, heat-conducting layer, refrigeration layer and the zone of heating is on the inner wall of cylindric shell. The baffle is sealed through welding or through the sealing washer with cylindric shell is direct, also can be connected through bolted connection's mode, conveniently dismantles and changes.
Furthermore, the refrigerating device in the refrigerating layer comprises a compressor, an evaporator, a condenser, a capillary tube, a refrigerant and a refrigerating tube, wherein the compressor is fixed on a partition plate at the lower end of the refrigerating layer, one end of the compressor is connected with the evaporator through the refrigerating tube, the other end of the compressor is connected with the capillary tube through the refrigerating tube, the other end of the capillary tube is connected with the condenser, and the refrigerant is filled in the refrigerating tube. When the refrigerating device works, the refrigerating operation inside the refrigerating layer is realized, and meanwhile, the good heat conduction performance of the heat conduction layer is utilized to realize the refrigeration of the electrode layer and the grinding layer.
Furthermore, the electric heating wire is powered by a built-in storage battery or an electric brush.
Furthermore, the self-repairing liquid metal grinding disc and the preparation method thereof further comprise a recovery device, wherein the recovery device comprises a recovery bin, a recovery pump and a recovery pipe, the rotary driving base and the grinding disc are integrally arranged in the recovery bin, the recovery pump is arranged at the bottom of the recovery bin, and the recovery pump conveys the liquid metal polishing solution in the recovery bin to a liquid storage tank through the recovery pipe.
Further, the hardness of the grinding disc is adjusted according to the requirement. Namely, the final hardness of the grinding disc can be adjusted by adjusting the proportion of the abrasive particles scattered into the liquid metal polishing solution. This allows for a self-adjustment of the hardness of the abrasive disc.
A preparation method of a self-repairing liquid metal grinding disc based on a self-repairing liquid metal grinding disc specifically comprises the following steps:
the method comprises the following steps: the whole device is installed, and the electric heating wire of the heating layer in the grinding disc is started to ensure that the temperature in the whole grinding disc is higher than the melting point of the liquid metal polishing solution;
step two: starting a liquid pump, pumping the liquid metal polishing solution in a liquid storage tank by using a liquid pumping pipeline, delivering the liquid metal polishing solution into a liquid spraying nozzle through a liquid spraying pipeline for spraying, spraying the liquid metal polishing solution to the surface of the grinding disc by the liquid spraying nozzle, stopping the liquid metal polishing solution in a grinding layer of the grinding disc, starting an electrode group of an electrode layer in the grinding disc, and adjusting the voltage of a fan-shaped positive electrode and a fan-shaped negative electrode in the electrode group to enable metal ions in the liquid metal polishing solution to move along a magnetic field formed by the combined action of the fan-shaped positive electrode and the fan-shaped negative electrode;
step three: after the liquid metal polishing solution in the grinding layer is automatically leveled, abrasive particles are scattered into the liquid metal polishing solution in the grinding layer, then the heating wire in the heating layer of the grinding disc is closed, the refrigerating device of the refrigerating layer is started, cooling of the liquid metal polishing solution in the grinding layer is achieved, the electrode group and the refrigerating device are closed until the liquid metal polishing solution in the whole grinding layer is cooled and solidified, and manufacturing of the grinding disc is completed.
The utility model discloses a concrete work flow as follows: when the grinding disc is manufactured initially, after the whole device is installed, a rotating motor is started, and the rotating motor drives the whole grinding disc to rotate by utilizing a rotating shaft; the liquid pump is started, the liquid pump pumps the liquid metal polishing solution in the liquid storage tank by using the liquid pumping pipeline, and the liquid metal polishing solution is sent to the liquid spraying nozzle through the liquid spraying pipeline to be sprayed out, and is sprayed to the surface of the grinding disc by the liquid spraying nozzle; the liquid pump is arranged on the linear feeding device, so that the liquid spraying nozzle can move within the radius range of the grinding disc when moving, and liquid metal polishing liquid can be conveniently and uniformly sprayed on the surface of the grinding disc; simultaneously starting an electric heating wire of the heating layer, generating heat when the electric heating wire is started, transmitting the heat to the electrode layer and the grinding layer through the heat conduction layer, enabling the liquid metal polishing solution on the grinding layer to be in a liquefied state, closing the electric heating wire of the heating layer when the liquid metal polishing solution on the grinding layer has a certain amount, and simultaneously starting a refrigerating device of the refrigerating layer to enable the liquid metal polishing solution on the grinding layer to be rapidly cooled; because the liquid metal in the primary state is cooled from the liquid state to the solid state, the surface of the polishing disk can be ensured to be flat.
When the grinding disc is initially finished to grind and process, the refrigerating device of the refrigerating layer is started as required, and the refrigerating device can absorb the heat to ensure that the liquid metal substrate is not melted as the grinding disc generates more heat during processing. 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 electric heating wire of the heating layer is started to melt the liquid metal polishing liquid on the surface of the grinding layer, and a liquid pump is utilized to inject new liquid metal polishing liquid to generate a new grinding layer, so that the self-trimming of the grinding disc is realized.
The beneficial effects of the utility model reside in that:
1. the utility model discloses utilize liquid metal to polish, liquid metal's melting point is low, and is lower to the requirement of production environment and production facility.
2. The utility model discloses be provided with recovery unit, the liquid metal polishing liquid that the recovery pump will retrieve in the storehouse through the recovery tube is carried the reservoir, has guaranteed that whole preparation polishing dish in-process liquid metal polishing liquid can directly retrieve and recycle, has improved material utilization ratio, has reduced manufacturing cost.
3. The utility model discloses utilize sharp feeding device control hydrojet shower nozzle side-to-side movement in the radius of abrasive disc, make the optional position that the hydrojet shower nozzle can spout the abrasive disc under abrasive disc self rotary motion combined action, the hydrojet shower nozzle can remove optional position when restoreing the abrasive disc also conveniently simultaneously.
4. The utility model discloses the mode of preparation abrasive disc adopts the cooling solidification of liquid metal polish, can realize the self-leveling of abrasive disc among the forming process, and the surface that directly turns into the solid back abrasive disc by liquid has very high roughness.
5. The utility model discloses only need adjust the adjustment that abrasive particle concentration in the liquid metal polish can realize abrasive disc hardness, realized that the hardness of abrasive disc is adjustable, also can increase the adjustment that abrasive particle concentration in the liquid metal polish realized abrasive disc hardness according to the actual demand in actual processing.
6. The utility model discloses an abrasive disc can realize restoreing fast, and the heating wire that starts the zone of heating melts the liquid metal polish on abrasive disc surface, pours into new liquid metal polish into again and can realize the quick restoration of abrasive layer.
7. The utility model discloses an abrasive particle on the abrasive disc grinds bald back, and the abrasive disc can realize the selfreparing, and the heating wire of start-up zone of heating melts the selfreparing that the liquid metal polishing liquid on abrasive disc surface can realize the abrasive layer, refurbishes the new blade face of abrasive particle to the top for can continue to carry out the abrasive polishing operation, prolong the life of abrasive disc.
8. The utility model discloses an abrasive disc can utilize refrigerating plant to last the heat absorption in the course of working, thereby can not lead to liquefying because of the temperature is overheated to reduce to grind the throwing effect in guaranteeing the abrasive disc course of working.
9. The utility model discloses set up electrode group in the abrasive disc, the magnetic field that utilizes electrode group's fan-shaped positive electrode and fan-shaped negative electrode to form promotes metal ion along magnetic field motion in the liquid metal polishing solution to drive rolling of grit in the liquid metal polishing solution, make the grit expose new sword more easily, extension polishing time.
10. The utility model discloses set up horizontal arch in the grinding coat of abrasive disc in opening recess side, set up vertical arch bottom the opening recess for its side and bottom have stop gear behind the liquid metal polishing solution solidification shaping, guarantee that the polishing disc that forms behind the liquid metal polishing solution solidification can not drop or produce relative displacement with the grinding coat bottom from the grinding coat, guarantee the stability behind the liquid metal polishing solution solidification shaping.
Drawings
Fig. 1 is a schematic view of the overall structure of the self-repairing liquid metal grinding disc of the present invention.
Figure 2 is a cross-sectional view of the rotary drive base and abrasive disk of the present invention.
Fig. 3 is a schematic structural diagram of the electrode layer of the present invention.
In the figure, 1-a rotary driving base, 2-a grinding disc, 3-a liquid pump, 4-a liquid storage tank, 5-a plane bearing, 6-a rotary motor, 7-a heating wire, 8-a refrigerating device, 9-a heat conducting liquid, 10-an electrode group, 11-a longitudinal bulge, 12-a linear feeding device, 13-a liquid pumping pipeline, 14-a liquid spraying pipeline, 15-a liquid spraying nozzle, 16-a support frame, 17-a cylindrical shell, 18-a clapboard, 19-a bottom base, 20-a rotating shaft, 21-a recovery bin, 22-a recovery pump, 23-a recovery pipe, 24-a fan-shaped positive electrode and 25-a fan-shaped negative electrode.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 to 3, a self-repairing liquid metal grinding disc comprises a rotary driving base 1, a grinding disc 2, a linear feeding device 12, a liquid storage tank 4, a liquid pumping pump 3, a liquid pumping pipeline 13, a liquid spraying pipeline 14 and a liquid spraying nozzle 15, wherein the grinding disc 2 is installed above the rotary driving base 1, the linear feeding device 12 is arranged on one side of the grinding disc 2, and the liquid pumping pipeline 13, the liquid pumping pump 3, the liquid spraying pipeline 14, the liquid spraying nozzle 15 and the liquid storage tank 4 are all installed on a linear slider of the linear feeding device 12 and perform linear feeding along with the movement of the linear slider; the input end of the liquid pump 3 is connected with a liquid pumping pipeline 13, one end of the liquid pumping pipeline 13 extends into the liquid storage tank 4 filled with the liquid metal polishing liquid, the output end of the liquid pump 3 is connected with one end of a liquid spraying pipeline 14, and the other end of the liquid spraying pipeline 14 is connected with a liquid spraying nozzle 15; the liquid spraying nozzle 15 is arranged above the grinding disc 2, the linear feeding device 12 drives the liquid spraying nozzle 15 to do linear reciprocating motion along a radius of the grinding disc 2 when in work, the liquid pumping pump 3 pumps the liquid metal polishing liquid in the liquid storage tank 4 through the liquid pumping pipeline 13, and the liquid metal polishing liquid is sent to the liquid spraying nozzle 15 through the liquid spraying pipeline 14 to be sprayed out, and is sprayed to the surface of the grinding disc 2 through the liquid spraying nozzle 15.
The rotary driving base 1 comprises a bottom base 19, a supporting frame 16, a rotating shaft 20 and a rotating motor 6, a cavity for accommodating the supporting frame 16 and the rotating motor 6 is formed in the bottom base 19, the rotating motor 6 is fixed in the bottom base 19 through the supporting frame 16, an output shaft of the rotating motor 6 is connected with the lower end of the rotating shaft 20 vertically arranged, and the upper end of the rotating shaft 20 penetrates through the upper surface of the bottom base 19 and is connected with the bottom of the grinding disc 2 horizontally arranged.
The grinding disc 2 is integrally cylindrical, the grinding disc 2 comprises a cylindrical shell 17 with a bottom, and a grinding layer, an electrode layer, a heat conduction layer, a refrigerating layer and a heating layer which are sequentially arranged in the cylindrical shell 17 from top to bottom, the bottom of the cylindrical shell 17 is connected with the upper end of a rotating shaft 20, a plane bearing 5 is fixed on the rotating shaft 20, and the plane bearing 5 is arranged between the lower surface of the cylindrical shell 17 and the upper surface of a bottom base 19; the grinding layer, the electrode layer, the heat conduction layer, the refrigerating layer and the heating layer are separated by a partition plate 18 respectively, the upper surface of the grinding layer is in the shape of an opening groove, the side surface of the opening groove is provided with uniformly distributed transverse bulges, and the bottom of the opening groove is uniformly distributed with longitudinal bulges 11; the electrode layer is arranged below the grinding layer, an electrode group 10 is arranged in the electrode layer, the electrode group 10 comprises fan-shaped positive electrodes with positive electrodes and fan-shaped negative electrodes with negative electrodes, the number of the fan-shaped positive electrodes and the number of the fan-shaped negative electrodes are equal, and the fan-shaped positive electrodes and the fan-shaped negative electrodes are sequentially and alternately distributed to form the whole electrode group 10; the heat conduction layer is arranged below the electrode layer, and heat conduction liquid 9 with good heat conduction performance is filled in the heat conduction layer; the refrigeration layer is arranged below the heat conduction layer, a refrigeration device 8 is arranged inside the refrigeration layer, and a radiating pipe outlet of the refrigeration device 8 is arranged on a cylindrical shell 17 of the grinding disc 2 on the side surface of the refrigeration layer; the zone of heating sets up in the below on refrigeration layer, and the inside heating wire 7 that is provided with of zone of heating, heating wire 7 are the mosquito-repellent incense disk and fix inside the zone of heating, be provided with the louvre that is used for the heat dissipation on the baffle 18 between zone of heating and the refrigeration layer.
The partition plate 18 among the grinding layer, the electrode layer, the heat conduction layer, the refrigerating layer and the heating layer is made of a disc-shaped material with a good heat conduction function.
The linear feeding device 12 is a linear module or a linear cylinder or a screw driving system composed of a ball screw and a linear guide rail.
The transverse bulges of the grinding layer are uniformly distributed along the inner wall of the outer side of the grinding layer and are rectangular bulges; the longitudinal bulges 11 of the grinding layer are uniformly distributed along the bottom of the grinding layer, and the longitudinal bulges 11 are irregular bulges with the same shape.
The grinding layer, the electrode layer, the heat conduction layer, the refrigerating layer and the heating layer are connected in a sealing mode, and the partition plates 18 between the grinding layer, the electrode layer, the heat conduction layer, the refrigerating layer and the heating layer are fixedly connected to the inner wall of the cylindrical shell 17.
The refrigerating device 8 in the refrigerating layer comprises a compressor, an evaporator, a condenser, a capillary tube, a refrigerant and a refrigerating tube, wherein the compressor is fixed on a partition plate 18 at the lower end of the refrigerating layer, one end of the compressor is connected with the evaporator through the refrigerating tube, the other end of the compressor is connected with the capillary tube through the refrigerating tube, the other end of the capillary tube is connected with the condenser, and the refrigerant is filled in the refrigerating tube.
The electric heating wire 7 is powered by a built-in storage battery or an electric brush.
The self-repairing liquid metal grinding disc and the preparation method thereof further comprise a recovery device, wherein the recovery device comprises a recovery bin 21, a recovery pump 22 and a recovery pipe 23, the rotary driving base 1 and the grinding disc 2 are integrally arranged in the recovery bin 21, the recovery pump 22 is arranged at the bottom of the recovery bin 21, and the recovery pump 22 conveys liquid metal polishing liquid in the recovery bin 21 to the liquid storage tank 4 through the recovery pipe 23.
The hardness of the grinding disc is adjusted according to the requirement. Namely, the final hardness of the abrasive disk 2 can be adjusted by adjusting the proportion of the abrasive grains scattered into the liquid metal polishing solution. This allows a self-adjustment of the hardness of the abrasive disc 2.
The preparation method of the self-repairing liquid metal grinding disc is characterized by comprising the following steps of: the method specifically comprises the following steps:
the method comprises the following steps: the whole device is installed, and the electric heating wire 7 of the heating layer in the grinding disc 2 is started to ensure that the temperature in the whole grinding disc 2 is higher than the melting point of the liquid metal polishing solution;
step two: starting a liquid pump 3, pumping the liquid metal polishing solution in the liquid storage tank 4 by using a liquid pumping pipeline 13, sending the liquid metal polishing solution into a liquid spraying nozzle 15 through a liquid spraying pipeline 14 for spraying, spraying the liquid metal polishing solution onto the surface of the grinding disc 2 by the liquid spraying nozzle 15, stopping the liquid metal polishing solution in a grinding layer of the grinding disc 2, starting an electrode group 10 of an electrode layer in the grinding disc 2, and adjusting the voltage of a fan-shaped positive electrode 24 and a fan-shaped negative electrode 25 in the electrode group 10 to enable metal ions in the liquid metal polishing solution to move along a magnetic field formed by the combined action of the fan-shaped positive electrode 24 and the fan-shaped negative electrode 25;
step three: after the liquid metal polishing solution in the grinding layer is automatically leveled, abrasive particles are scattered into the liquid metal polishing solution in the grinding layer, then the heating wire 7 in the heating layer of the grinding disc 2 is closed, the refrigerating device 8 of the refrigerating layer is started, cooling of the liquid metal polishing solution in the grinding layer is achieved, the electrode group 10 and the refrigerating device 8 are closed until the liquid metal polishing solution in the whole grinding layer is cooled and solidified, and manufacturing of the grinding disc 2 is completed.
When the grinding disc is manufactured initially, after the whole device is installed, the rotating motor 6 is started, and the rotating motor 6 drives the whole grinding disc to rotate by utilizing the rotating shaft; the liquid pump 3 is started, the liquid pump 3 pumps the liquid metal polishing solution in the liquid storage tank 4 by using the liquid pumping pipeline 13, and the liquid metal polishing solution is sent to the liquid spraying nozzle 15 through the liquid spraying pipeline 14 to be sprayed out, and is sprayed to the surface of the grinding disc 2 by the liquid spraying nozzle 15; the liquid pump 3 is arranged on the linear feeding device, so that the liquid spraying nozzle 15 can move within the radius range of the grinding disc 2 when moving, and liquid metal polishing liquid can be conveniently and uniformly sprayed on the surface of the grinding disc 2; meanwhile, the electric heating wire 7 of the heating layer is started, heat is generated when the electric heating wire 7 is started, the heat is transmitted to the electrode layer and the grinding layer through the heat conduction layer, so that the liquid metal polishing solution on the grinding layer is in a liquefied state, when the liquid metal polishing solution on the grinding layer has a certain amount, the electric heating wire 7 of the heating layer is closed, and meanwhile, the refrigerating device 8 of the refrigerating layer is started to promote the liquid metal polishing solution on the grinding layer to be rapidly cooled; because the liquid metal in the primary state is cooled from the liquid state to the solid state, the surface of the polishing disk can be ensured to be flat.
When the grinding disc is initially finished to grind and process, the refrigerating device 8 of the refrigerating layer is started as required, and the refrigerating device 8 can absorb the heat to ensure that the liquid metal substrate is not melted as the grinding disc generates more heat during processing. When the abrasion disc is machined for a plurality of times and the surface is abraded more, self-repairing can be carried out, namely, the electric heating wire 7 of the heating layer is started to melt the liquid metal polishing liquid on the surface of the abrasion layer, a liquid pump 3 is used for injecting new liquid metal polishing liquid, the liquid metal polishing liquid is cooled by the refrigerating device 8 to be solidified, a new abrasion layer is generated, and therefore self-repairing of the abrasion disc is achieved.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims (8)

1. The utility model provides a from repairing formula liquid metal abrasive disc which characterized in that: the grinding disc type linear feeding device comprises a rotary driving base (1), a grinding disc (2), a linear feeding device (12), a liquid storage tank (4), a liquid pump (3), a liquid pumping pipeline (13), a liquid spraying pipeline (14) and a liquid spraying nozzle (15), wherein the grinding disc (2) is arranged above the rotary driving base (1), the linear feeding device (12) is arranged on one side of the grinding disc (2), and the liquid pumping pipeline (13), the liquid pumping device (3), the liquid spraying pipeline (14), the liquid spraying nozzle (15) and the liquid storage tank (4) are all arranged on a linear sliding block of the linear feeding device (12) and perform linear feeding along with the movement of the linear sliding block; the input end of the liquid pump (3) is connected with a liquid pumping pipeline (13), one end of the liquid pumping pipeline (13) extends into a liquid storage tank (4) filled with liquid metal polishing liquid, the output end of the liquid pump (3) is connected with one end of a liquid spraying pipeline (14), and the other end of the liquid spraying pipeline (14) is connected with a liquid spraying nozzle (15); the liquid spraying nozzles (15) are arranged above the grinding disc (2), when the linear feeding device (12) works, the liquid spraying nozzles (15) are driven to do linear reciprocating motion along a radius of the grinding disc (2), the liquid pump (3) pumps out liquid metal polishing liquid in the liquid storage tank (4) through the liquid pumping pipeline (13), the liquid metal polishing liquid is sent into the liquid spraying nozzles (15) through the liquid spraying pipeline (14) to be sprayed out, and the liquid metal polishing liquid is sprayed to the surface of the grinding disc (2) through the liquid spraying nozzles (15);
the rotary driving base (1) comprises a bottom base (19), a supporting frame (16), a rotating shaft (20) and a rotating motor (6), a cavity for accommodating the supporting frame (16) and the rotating motor (6) is formed in the bottom base (19), the rotating motor (6) is fixed in the bottom base (19) through the supporting frame (16), an output shaft of the rotating motor (6) is connected with the lower end of the rotating shaft (20) which is vertically arranged, and the upper end of the rotating shaft (20) penetrates through the upper surface of the bottom base (19) and is connected with the bottom of the grinding disc (2) which is horizontally arranged;
the grinding disc (2) is integrally cylindrical, the grinding disc (2) comprises a cylindrical shell (17) with a bottom, and a grinding layer, an electrode layer, a heat conducting layer, a refrigerating layer and a heating layer which are sequentially arranged in the cylindrical shell (17) from top to bottom, the bottom of the cylindrical shell (17) is connected with the upper end of a rotating shaft (20), a plane bearing (5) is fixed on the rotating shaft (20), and the plane bearing (5) is arranged between the lower surface of the cylindrical shell (17) and the upper surface of a bottom base (19); the grinding layer, the electrode layer, the heat conduction layer, the refrigerating layer and the heating layer are separated by partition plates (18) respectively, the upper surface of the grinding layer is in the shape of an opening groove, the side surface of the opening groove is provided with uniformly distributed transverse bulges, and the bottom of the opening groove is uniformly distributed with longitudinal bulges (11); the electrode layer is arranged below the grinding layer, an electrode group (10) is arranged in the electrode layer, the electrode group (10) comprises fan-shaped positive electrodes with positive electrodes and fan-shaped negative electrodes with negative electrodes, the number of the fan-shaped positive electrodes and the number of the fan-shaped negative electrodes are equal, and the fan-shaped positive electrodes and the fan-shaped negative electrodes are sequentially and alternately distributed to form the whole electrode group (10); the heat conduction layer is arranged below the electrode layer, and heat conduction liquid (9) with good heat conduction performance is filled in the heat conduction layer; the refrigeration layer is arranged below the heat conduction layer, a refrigeration device (8) is arranged inside the refrigeration layer, and a radiating pipe outlet of the refrigeration device (8) is arranged on a cylindrical shell (17) of the grinding disc (2) on the side surface of the refrigeration layer; the zone of heating sets up in the below on refrigeration layer, and the inside heating wire (7) that is provided with of zone of heating, heating wire (7) are the mosquito-repellent incense disk and fix inside the zone of heating, be provided with on baffle (18) between zone of heating and the refrigeration layer and be used for radiating louvre.
2. The self-repairing liquid metal grinding disc as claimed in claim 1, wherein: the grinding layer, the electrode layer, the heat conduction layer, the partition plate (18) between the refrigerating layer and the heating layer are made of disc-shaped materials with good heat conduction functions.
3. The self-repairing liquid metal grinding disc as claimed in claim 2, wherein: the linear feeding device (12) is a linear module or a linear cylinder or a screw driving system consisting of a ball screw and a linear guide rail.
4. The self-repairing liquid metal grinding disc as claimed in claim 3, wherein: the transverse bulges of the grinding layer are uniformly distributed along the inner wall of the outer side of the grinding layer and are rectangular bulges; the longitudinal bulges (11) of the grinding layer are uniformly distributed along the bottom of the grinding layer, and the longitudinal bulges (11) are irregular bulges with consistent shapes.
5. The self-repairing liquid metal grinding disk of claim 4, wherein: the grinding layer, the electrode layer, the heat conduction layer, the refrigerating layer and the heating layer are connected in a sealing mode, and the partition plates (18) between the grinding layer, the electrode layer, the heat conduction layer, the refrigerating layer and the heating layer are fixedly connected to the inner wall of the cylindrical shell (17).
6. The self-repairing liquid metal grinding disc as claimed in claim 5, wherein: the refrigerating device (8) in the refrigerating layer comprises a compressor, an evaporator, a condenser, a capillary tube, a refrigerant and a refrigerating tube, wherein the compressor is fixed on a partition plate (18) at the lower end of the refrigerating layer, one end of the compressor is connected with the evaporator through the refrigerating tube, the other end of the compressor is connected with the capillary tube through the refrigerating tube, the other end of the capillary tube is connected with the condenser, and the refrigerant is filled in the refrigerating tube.
7. The self-repairing liquid metal grinding disc as claimed in claim 6, wherein: the electric heating wire (7) is powered by a built-in storage battery or an electric brush.
8. The self-repairing liquid metal grinding disc as claimed in claim 7, wherein: the self-repairing liquid metal grinding disc and the preparation method thereof further comprise a recovery device, wherein the recovery device comprises a recovery bin (21), a recovery pump (22) and a recovery pipe (23), the rotary driving base (1) and the grinding disc (2) are integrally arranged in the recovery bin (21), the recovery pump (22) is arranged at the bottom of the recovery bin (21), and the recovery pump (22) conveys liquid metal polishing liquid in the recovery bin (21) to a liquid storage tank (4) through the recovery pipe (23).
CN202020554770.1U 2020-04-15 2020-04-15 Self-repairing liquid metal grinding disc Withdrawn - After Issue CN211992528U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111347355A (en) * 2020-04-15 2020-06-30 浙江工业大学 Self-repairing liquid metal grinding disc and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111347355A (en) * 2020-04-15 2020-06-30 浙江工业大学 Self-repairing liquid metal grinding disc and preparation method thereof
CN111347355B (en) * 2020-04-15 2024-06-21 浙江工业大学 Self-repairing type liquid metal grinding disc and preparation method thereof

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