A double-precision polishing device for hard and brittle materials

Abstract

The present application relates to the technical field of polishing and grinding, and specifically discloses a double-precision polishing device for hard and brittle materials, which includes a polishing mechanism and a cleaning mechanism; the polishing mechanism includes a frame, a rough polishing assembly, a fine polishing assembly and a support plate; the cleaning mechanism includes a mounting plate, a first fan, a shift block, a stopper and a reset member, the mounting plate is slidably arranged on the frame, the first fan is arranged on the mounting plate, the air outlet of the first fan faces the support plate, the shift block is arranged on the support plate, the stopper is arranged on the mounting plate, when the shift block and the stopper are against each other, the shift block can drive the stopper to slide when moving so that the mounting plate and the support plate move synchronously, the reset member is arranged between the mounting plate and the frame, and the reset member is used to drive the mounting plate to slide in the opposite direction to the initial position after moving synchronously with the support plate. The present application can reduce the impact of the cleaning process on the polishing efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of polishing and grinding, and in particular to a double-precision polishing device for hard and brittle materials. Background Art

[0002] Hard and brittle materials, such as ceramics, glass, quartz, etc., are widely used in aviation, electronics, optics and other fields due to their high hardness, high brittleness and high chemical stability. Polishing is an indispensable part of material processing, which can significantly improve the appearance quality and performance of the material. Polishing is a processing method that makes the surface smooth by removing tiny protrusions on the surface of the material. The polishing process is usually divided into two stages: rough polishing and fine polishing.

[0003] The goal of the rough polishing stage is to quickly remove most of the irregularities and excess materials on the material surface. Usually, abrasives with larger grain sizes are selected, and the polishing pressure and speed are increased for rapid polishing. The fine polishing stage is a further improvement and optimization of the rough polishing results. In this stage, abrasives with smaller grain sizes are selected, and microscopic unevenness and scratches on the material surface are gradually eliminated through more detailed polishing.

[0004] During the polishing process, the workpiece is first placed in a rough polishing station for rough polishing. After the rough polishing is completed, the workpiece needs to be moved to a fine polishing station, and then the debris and abrasive particles generated on the surface of the workpiece during the rough polishing process are cleaned off, and then the workpiece can be finely polished; since the cleaning process takes a certain amount of time, it is easy to affect the processing efficiency of the polishing process. Summary of the invention

[0005] In order to reduce the impact of the cleaning process on the polishing efficiency, the present application provides a double-precision polishing device for hard and brittle materials.

[0006] The double-precision polishing equipment for hard and brittle materials provided in this application adopts the following technical solution:

[0007] A double-precision polishing device for hard and brittle materials, comprising a polishing mechanism and a cleaning mechanism;

[0008] The polishing mechanism comprises a frame, a rough polishing assembly, a fine polishing assembly and a support plate, wherein the rough polishing assembly and the fine polishing assembly are both arranged on the frame, the support plate is located below the rough polishing assembly and the fine polishing assembly, the support plate is rotatably arranged on the frame, a plurality of placement stations for placing workpieces are arranged on the peripheral spacer ring of the support plate, and the spacing between two adjacent placement stations is the same as the spacing between the rough polishing assembly and the fine polishing assembly;

[0009] The cleaning mechanism includes a mounting plate, a first fan, a shift block, a stopper and a reset member, the mounting plate being slidably arranged on the frame, the first fan being arranged on the mounting plate, the air outlet of the first fan facing the support plate, the shift block being arranged on the support plate, and the stopper being arranged on the mounting plate, when the shift block and the stopper are against each other, the shift block can drive the stopper to slide when it moves so that the mounting plate and the support plate move synchronously, the reset member is arranged between the mounting plate and the frame, and the reset member is used to drive the mounting plate to slide in the opposite direction to the initial position after synchronously moving with the support plate.

[0010] By adopting the above technical scheme, during the operation of the rough polishing component, the first fan can blow air to the workpiece placed on the workstation to prevent the workpiece temperature from being too high; when the support plate rotates, the stop block can be driven to rotate by the shift block, so that the mounting plate slides as the air outlet of the first fan on the mounting plate can always face the workpiece on the support plate that has been rough polished. Therefore, during the movement of the workpiece, air can be blown to the workpiece to clean up the debris and abrasive particles on the workpiece, which helps to ensure the effect of fine polishing; since the process of cleaning the workpiece is carried out during the movement of the workpiece, the time utilization rate can be improved and the influence of the cleaning process on the polishing efficiency can be reduced; the process of the first fan blowing air to the workpiece can also accelerate the cooling of the workpiece to prevent damage to the workpiece caused by excessive temperature during polishing.

[0011] Optionally, the reset member includes an elastic rope, which is fixedly connected between the mounting plate and the frame, and a support plate is provided on the frame at the outer side of the support plate, and an arc-shaped slide groove is provided on the support plate, and the distance between the slide groove and the placement station on the support plate gradually increases along the extension direction of the slide groove; a slider is provided on the mounting plate, and the slider is slidably arranged in the slide groove, and when the slider is located at one end of the slide groove, the shift block can be moved to a state of abutting against the stop block, and when the slider is located at the other end of the slide groove, the shift block and the stop block are in a separated state so that the elastic rope drives the mounting plate to reset.

[0012] By adopting the above technical solution, the mounting plate can only move along the slide groove. When the support plate drives the mounting plate to move, the elastic rope is stretched. When the shift block and the stop block are separated, the mounting plate is reset under the action of the elastic rope, thereby moving to the position next to the rough polishing component, so as to facilitate blowing the next workpiece.

[0013] Optionally, the ends of the shift block and the stop block that are close to each other are both provided with arc surfaces.

[0014] By adopting the technical solution, the shift block and the stop block can be easily separated.

[0015] Optionally, a brush plate is provided on the frame at a side of the fine polishing component close to the rough polishing component, and bristles are provided on the brush plate, and the bottom ends of the bristles can abut against the workpiece located on the placement station.

[0016] By adopting the above technical solution, the top surface of the workpiece and the bristles can be abutted against each other during the rotation of the support plate, so that the debris on the top surface of the workpiece can be brushed off by the bristles, which can further enhance the cleaning effect on the workpiece surface.

[0017] Optionally, a spray mechanism is provided on one side of the fine polishing assembly on the frame, and the spray mechanism includes a liquid storage tube and a second fan, the liquid storage tube is provided with a cavity for accommodating polishing liquid, the air outlet of the second fan is connected to the interior of the liquid storage tube, and a liquid outlet is provided at one end of the liquid storage tube away from the second fan, and the liquid outlet faces the placement station, so that the polishing liquid in the liquid storage tube can be squeezed out under pressure after the second fan is started.

[0018] By adopting the above technical solution, when the fine polishing component is fine polishing the workpiece, the second fan can blow air into the liquid storage tube. Under the action of air pressure, the polishing liquid in the liquid storage tube can be squeezed out through the liquid outlet, thereby spraying the polishing liquid on the workpiece, which can continuously cool the workpiece and avoid damage to the workpiece due to excessive temperature during fine polishing.

[0019] Optionally, an exhaust pipe is provided on one side of the brush plate on the frame, and the outlet of the exhaust pipe faces the bristles. A connecting plate is provided on the outer side of the support plate on the frame, and a cavity is provided in the connecting plate. The cavity inside the connecting plate is connected to the air outlet of the second fan. A first air outlet and a second air outlet are provided at intervals on the circumference of the connecting plate, the first air outlet is connected to the liquid storage pipe, and the second air outlet is connected to the exhaust pipe. A baffle is rotatably provided in the connecting plate, and the baffle is used to block one of the first air outlet and the second air outlet. A driving mechanism for driving the baffle to rotate is provided on one side of the connecting plate.

[0020] By adopting the above technical solution, the driving mechanism drives the baffle to rotate so that the second air outlet is opened and the first air outlet is closed. At this time, the wind blown by the second fan can be discharged through the connecting plate, the second air outlet and the exhaust pipe in sequence, so as to blow air to the bristles, and the debris adhering to the bristles can be blown off, so as to prevent the debris on the bristles from causing scratches on the surface of the workpiece during the subsequent cleaning process; the process of spraying polishing liquid and blowing air to the bristles can be achieved by the second fan, thereby reducing the number of power sources and helping to reduce costs.

[0021] Optionally, the driving mechanism includes a bevel rack, a bevel gear and an elastic member, the bevel rack is fixedly connected to the outer side of the support plate, the bevel gear is located between the brush plate and the fine polishing assembly, the bevel gear is rotatably set on the frame, the axis of the bevel gear and the rotation axis of the baffle are coaxially set, the bevel gear and the baffle are fixedly connected, the bevel gear is used to mesh with the bevel rack, and the elastic member is connected between the baffle and the inner wall of the connecting plate, and is used to drive the baffle to reset.

[0022] By adopting the above technical solution, when the support plate rotates, it can drive the bevel rack to rotate, the bevel rack drives the bevel gear to rotate, and the bevel gear drives the baffle to rotate. It only needs to set the length of the bevel rack and the position of the bevel gear to control the timing of the baffle rotation. Therefore, the rotation of the baffle does not require setting up other power sources, which is more energy-efficient.

[0023] Optionally, the exhaust pipe is located below the brush plate, and an outlet of the exhaust pipe faces upward.

[0024] By adopting the above technical solution, the exhaust pipe blows air upwards to blow off the debris adhering to the bristles, which helps to ensure the cleaning effect of the debris on the bristles.

[0025] Optionally, the support plate is in a cross shape, and a collection box is provided below the support plate.

[0026] By adopting the above technical solution, the polishing liquid can fall into the collection box after flowing through the workpiece, and the collection box can collect the polishing liquid.

[0027] Optionally, a liquid replenishing mechanism is provided on one side of the liquid storage tube, and the liquid replenishing mechanism includes a liquid storage tank, a pump body and a filter screen. The liquid storage tube and the interior of the liquid storage tank are connected, the liquid inlet end of the pump body is connected to the interior of the collecting box, the liquid outlet end of the pump body is connected to the interior of the liquid storage tank, and the filter screen is provided at the liquid inlet end of the pump body.

[0028] By adopting the above technical solution, the pump body can pump the filtered polishing liquid into the liquid storage tank, and then the polishing liquid in the liquid storage tank flows into the liquid storage pipe, thereby realizing the recycling of the polishing liquid and reducing waste.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The cleaning process of the debris and abrasive particles on the workpiece surface can be carried out during the movement of the workpiece. After the workpiece moves from the rough polishing station to the fine polishing station, fine polishing can be carried out immediately. Therefore, the cleaning process will not take up too much time, which helps to ensure work efficiency.

[0031] 2. The first fan can move synchronously with the support plate, so that the air outlet of the first fan can always face the workpiece on the support plate, which helps to ensure the cleaning effect of the workpiece; in addition, the air blowing of the first fan can also accelerate the cooling of the workpiece during the transfer of the workpiece, so that the temperature of the workpiece is reduced after it moves to the fine polishing station, which can reduce the possibility of damage to the workpiece due to high temperature during the fine polishing process.

[0032] 3. By adjusting the position of the baffle, the second fan can not only squeeze out the polishing liquid in the liquid storage tube to achieve continuous cooling of the workpiece, but also blow air to the bristles through the exhaust pipe to clean the debris on the bristles. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0034] Figure 2 This is a schematic diagram of the structure of the cleaning mechanism used in the embodiment of the present application;

[0035] Figure 3 is a structural schematic diagram of another perspective for showing the cleaning mechanism in an embodiment of the present application;

[0036] Figure 4 yes Figure 3 The enlarged schematic diagram of point A in the middle;

[0037] Figure 5 is a schematic diagram of the structure of the embodiment of the present application after the rough polishing component and the fine polishing component are hidden;

[0038] Figure 6 It is a schematic diagram of the structure of the connection disk in the embodiment of the present application;

[0039] Figure 7 is a cross-sectional view of a liquid storage tube in an embodiment of the present application;

[0040] Figure 8 is a cross-sectional view of an embodiment of the present application for showing the installation position of the baffle in the initial state;

[0041] Fig. 9 is a cross-sectional view of an embodiment of the present application for showing a first air outlet and a second air outlet;

[0042] Fig.10 is a schematic diagram of the structure of the baffle used to illustrate the embodiment of the present application;

[0043] Fig.11 It is a structural schematic diagram used to demonstrate the fluid replenishment mechanism in an embodiment of the present application.

[0044] Reference numerals: 1, polishing mechanism; 11, frame; 12, rough polishing assembly; 13, fine polishing assembly; 14, support plate; 141, placement station; 2, cleaning mechanism; 21, mounting plate; 211, slider; 22, first fan; 23, shift block; 24, stopper; 25, elastic rope; 3, support plate; 31, slide groove; 4, brush plate; 41, brush hair; 5, spray mechanism; 51, liquid storage pipe; 511, liquid outlet Tube; 5111, liquid outlet; 52, second fan; 6, exhaust pipe; 7, connecting plate; 71, first air outlet; 72, second air outlet; 8, baffle; 81, support rod; 82, rotating shaft; 9, driving mechanism; 91, bevel rack; 92, bevel gear; 93, elastic member; 10, collecting box; 15, liquid replenishing mechanism; 151, liquid storage tank; 152, pump body; 153, filter screen; 16, curved surface; 17, workpiece. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-11 This application is described in further detail.

[0046] The present application embodiment discloses a double-precision polishing device for hard and brittle materials. Figure 1 The double-precision polishing equipment for hard and brittle materials includes a polishing mechanism 1 and a cleaning mechanism 2. The polishing mechanism 1 includes a frame 11, a support plate 14, a rough polishing assembly 12 and a fine polishing assembly 13. The support plate 14 is in the shape of a cross and is arranged horizontally; the support plate 14 is rotatably arranged on the frame 11 around a vertical axis, and a motor is fixedly connected to the bottom of the frame 11, and the output shaft of the motor is fixedly connected to the support plate 14, so that the motor can drive the support plate 14 to rotate; a protective shell is provided on the outer side of the motor. Placement stations 141 are arranged at the four corners on the top surface of the support plate 14, and each placement station 141 is provided with a clamping member for clamping the workpiece 17.

[0047] The rough polishing assembly 12 and the fine polishing assembly 13 are both arranged on the frame 11 and are located above the support plate 14; the position below the rough polishing assembly 12 is the rough polishing station, and the position below the fine polishing assembly 13 is the fine polishing station. The angle between the line connecting the center of the rough polishing assembly 12 and the support plate 14 and the line connecting the center of the fine polishing assembly 13 and the support plate 14 is 90 degrees, so when one of the placement stations 141 is in the rough polishing station, the other adjacent placement station 141 is in the fine polishing station. The rough polishing assembly 12 includes a polishing wheel, a power member and a driving member. The polishing wheel is arranged at the output end of the power member, and the power member can drive the polishing wheel to rotate; the power member is arranged at the output end of the driving member, so the driving member can drive the polishing wheel to move in the horizontal direction, thereby realizing the polishing of the workpiece 17. The structure of the fine polishing assembly 13 is the same as that of the rough polishing assembly 12, except that the particle size of the polishing wheel of the fine polishing assembly 13 is finer than that of the polishing wheel of the rough polishing assembly 12.

[0048] Reference Figure 2 , Figure 3 and Figure 4 The cleaning mechanism 2 includes a mounting plate 21, a first fan 22, a shift block 23, a stopper 24 and a reset member. A support plate 3 is arranged on the frame 11 outside the support plate 14, and the surface of the support plate 3 is arranged horizontally; an arc-shaped slide groove 31 is opened on the support plate 3, and the rotation axis of the slide groove 31 and the support plate 14 are not coaxial, and one end of the slide groove 31 gradually bends to the side away from the support plate 14. One end of the slide groove 31 is located at the rough polishing component 12, and the other end of the slide groove 31 is located on the side close to the fine polishing component 13. A slider 211 is fixedly connected to the bottom of the mounting plate 21, and the slider 211 is slidably arranged in the slide groove 31, so that the mounting plate 21 can slide along the slide groove 31. The first fan 22 is fixedly connected to the top wall of the mounting plate 21, and the air outlet of the first fan 22 faces the support plate 14, so that the first fan 22 can blow air to the workpiece 17 in the rough polishing station under normal conditions to accelerate the cooling of the workpiece 17.

[0049] The shift block 23 is fixedly connected to the support plate 14. There are four shift blocks 23, which are respectively fixedly connected to the four corners of the support plate 14; the stopper 24 is fixedly connected to the mounting plate 21. When one of the placement stations 141 on the support plate 14 is at the rough polishing station, one side of the shift block 23 abuts against the stopper 24. The reset member is an elastic rope 25, which is fixedly connected between the slider 211 and the support plate 3; in normal state, the mounting plate 21 is located outside the rough polishing station, and the elastic rope 25 is at its original length.

[0050] After the rough polishing of the workpiece 17 is completed, the support plate 14 rotates, so that the rough polished workpiece 17 rotates toward the fine polishing station. During this process, the shifting block 23 can drive the stopper 24 to rotate, so that the stopper 24 drives the mounting plate 21 to slide, and the mounting plate 21 drives the first fan 22 to slide, so that the air outlet of the first fan 22 can always face the rough polished workpiece 17, so that the first fan 22 can blow off the debris on the top surface of the workpiece 17. When the mounting plate 21 slides to one end of the slide groove 31 close to the fine polishing station, the stopper 24 is separated from the contact with the shifting block 23. At this time, under the action of the elastic rope 25, the mounting plate 21 slides in the opposite direction to reset, so as to facilitate the blowing cooling of the next rough polished workpiece 17.

[0051] Furthermore, the ends of the shifting block 23 and the stopper 24 that are close to each other are both provided with a curved surface 16, so that the shifting block 23 and the stopper 24 are easily separated.

[0052] Reference Figure 1A brush plate 4 is provided on the frame 11 at one side of the fine polishing component 13 close to the rough polishing component 12. The brush plate 4 is located at the outer edge of the support plate 14, and the brush plate 4 is located above the support plate 14; bristles 41 are provided on the bottom wall of the brush plate 4, and the support plate 14 can drive the workpiece 17 to rotate during rotation. The bristles 41 can be against the top wall of the workpiece 17 located on the support plate 14, so that the top wall of the workpiece 17 is cleaned again by the bristles 41, which helps to enhance the cleaning effect of the top wall of the workpiece 17.

[0053] Reference Figure 5 , Figure 6 and Figure 7 A spray mechanism 5 is also provided on one side of the fine polishing assembly 13 on the frame 11, and the spray mechanism 5 includes a liquid storage pipe 51 and a second fan 52. The liquid storage pipe 51 is located below the fine polishing assembly 13 and above the support plate 14. The liquid storage pipe 51 is an annular pipe, and a cavity for storing polishing liquid is provided inside the liquid storage pipe 51; a plurality of liquid outlet pipes 511 are provided on the bottom wall of the liquid storage pipe 51, and the liquid outlet pipes 511 are connected to the cavity inside the liquid storage pipe 51; a plurality of small liquid outlets 5111 are provided at the bottom end of the liquid outlet pipe 511. The second fan 52 is provided on one side of the liquid storage pipe 51, and the air outlet of the second fan 52 is connected to the cavity inside the liquid storage pipe 51. Therefore, when the second fan 52 stops working, the polishing liquid is stored in the liquid storage tube 51 because the liquid outlet 5111 is relatively small; when the second fan 52 is started, the second fan 52 blows air into the liquid storage tube 51, and under the action of air pressure, the polishing liquid in the liquid storage tube 51 can be sprayed out from the liquid outlet 5111, thereby continuously cooling the workpiece 17 on the fine polishing station.

[0054] In order to facilitate the cleaning of the debris adhering to the bristles 41, an exhaust pipe 6 is provided on the frame 11 below the brush plate 4, and the exhaust pipe 6 is also located below the support plate 14, and the outlet of the exhaust pipe 6 faces upward. Therefore, when the exhaust pipe 6 is connected to the air source, the exhaust pipe 6 can blow air upward, thereby blowing off the debris adhering to the bristles 41, and cleaning the bristles 41 is achieved.

[0055] Reference Figure 8 , Fig. 9 and Fig.10, a connecting plate 7 is also provided on the frame 11 on the outside of the support plate 14. The connecting plate 7 is a circular plate with a cavity for gas flow inside. The axis of the connecting plate 7 is horizontal, and the connecting plate 7 is located on the side of the brush plate 4 close to the fine polishing assembly 13. The cavity inside the connecting plate 7 is connected to the air outlet of the second fan 52, so the second fan 52 can blow air into the connecting plate 7. A first air outlet 71 and a second air outlet 72 are provided on the peripheral wall of the connecting plate 7, and the first air outlet 71 and the second air outlet 72 are arranged at intervals; the connecting plate 7 is connected to the inside of the liquid storage tube 51 through the first air outlet 71, and the connecting plate 7 is connected to the inside of the exhaust pipe 6 through the second air outlet 72. An arc-shaped baffle 8 is also rotatably provided inside the connecting plate 7, and the baffle 8 can fit with the inner wall of the connecting plate 7; a strip-shaped notch is provided on the baffle 8; the baffle 8 is located at the first air outlet 71 and the second air outlet 72. When the baffle 8 blocks the first air outlet 71 , the second air outlet 72 is in an open state; when the baffle 8 blocks the second air outlet 72 , the first air outlet 71 is in an open state.

[0056] Reference Figure 5 and Fig.10 , a support rod 81 is fixedly connected to the baffle plate 8, and the support rod 81 is arranged along the radial direction of the rotating disk; a rotating shaft 82 is vertically fixedly connected to one end of the support rod 81 away from the baffle plate 8, and one end of the rotating shaft 82 passes through the connecting plate 7; a driving mechanism 9 for driving the rotating shaft 82 to rotate is arranged on the outer side of the connecting plate 7. The driving mechanism 9 includes a bevel rack 91, a bevel gear 92 and an elastic member 93. Four bevel racks 91 are arranged, which are respectively fixedly connected to the four corners of the support plate 14; the bevel gear 92 is coaxially arranged with the connecting plate 7, and the bevel gear 92 is rotatably arranged on the frame 11; the bevel gear 92 is located above the bevel rack 91, and the bevel gear 92 is used to mesh with the bevel rack 91. One end of the rotating shaft 82 located outside the connecting plate 7 is coaxially fixedly connected to the bevel gear 92, so that when the support plate 14 rotates, the bevel rack 91 can be driven to rotate. When the bevel rack 91 and the bevel gear 92 are meshed, the bevel gear 92 can be rotated. The bevel gear 92 drives the baffle 8 to rotate through the rotating shaft 82 and the support rod 81, thereby realizing the switching of the states of the first air outlet 71 and the second air outlet 72.

[0057] The elastic member 93 is a torsion spring, and the elastic member 93 is fixedly connected between the rotating shaft 82 and the inner wall of the connecting plate 7. Under normal conditions, the elastic member 93 is in an untwisted state, and the first air outlet 71 is open, and the second air outlet 72 is closed. At this time, the wind blown into the connecting plate 7 by the second fan 52 can flow into the liquid storage tube 51 through the first air outlet 71, thereby continuously cooling the polishing liquid sprayed on the workpiece 17 on the fine polishing station. When polishing is completed, the support plate 14 rotates; when the bevel rack 91 and the bevel gear 92 are engaged, the baffle 8 can be rotated, and the elastic member 93 is twisted. At this time, the first air outlet 71 is closed, and the second air outlet 72 is opened. The wind in the connecting plate 7 can be discharged through the second air outlet 72 and the exhaust pipe 6, thereby blowing and cleaning the bristles 41. As the support plate 14 rotates, the bevel rack 91 disengages from the bevel gear 92. At this time, under the action of the elastic member 93, the baffle 8 is reset, so that the first air outlet 71 is opened and the second air outlet 72 is closed, thereby facilitating spraying of the workpiece 17 on the fine polishing station.

[0058] In order to facilitate the recycling of the sprayed polishing liquid, refer to Fig.11 A collecting box 10 is provided below the support plate 14, and the opening of the collecting box 10 faces upward, so that the polishing liquid flowing through the workpiece 17 can fall into the collecting box 10. A liquid replenishing mechanism 15 is provided on one side of the liquid storage tube 51, and the liquid replenishing mechanism 15 includes a liquid storage box 151, a pump body 152 and a filter screen 153. The liquid storage box 151 is provided on the frame 11, and the liquid storage box 151 is located above the liquid storage tube 51, and the liquid storage box 151 and the liquid storage tube 51 are connected. The pump body 152 is provided on the collecting box 10; the liquid inlet end of the pump body 152 is located in the collecting box 10, and the filter screen 153 is provided at the liquid inlet end of the pump body 152; the liquid outlet end of the pump body 152 is connected to the inside of the liquid storage box 151. Therefore, the pump body 152 can pump the filtered polishing liquid into the liquid storage tank 151 , and the polishing liquid in the liquid storage tank 151 then flows into the liquid storage tube 51 , thereby realizing the liquid replenishment process of the liquid storage tube 51 .

[0059] The implementation principle of a double-precision polishing device for hard and brittle materials in an embodiment of the present application is as follows: workpieces 17 are placed on the placement stations 141 at the four corners of the support plate 14, and each workpiece 17 is fixed by a clamp; during polishing, the support plate 14 is in a stationary state, and the rough polishing component 12 and the fine polishing component 13 polish the two workpieces 17 simultaneously; when polishing is completed, the support plate 14 rotates 90°, and the workpiece 17 after the rough polishing is transferred to the fine polishing station, and the workpiece 17 after the fine polishing is transferred to the unloading station, and the workpiece 17 that has completed two polishings on the unloading station is taken out and a new workpiece 17 to be polished is placed.

[0060] In the initial state, the shift block 23 and the stopper 24 are in contact with each other; during the rotation of the support plate 14, the support plate 14 drives the stopper 24 to rotate through the shift block 23, and the stopper 24 drives the mounting plate 21 to slide, and the mounting plate 21 drives the first fan 22 to slide, so that the air outlet of the first fan 22 is always facing the workpiece 17, and the wind blown by the first fan 22 can blow off the debris on the surface of the workpiece 17; during the sliding of the mounting plate 21 along the slide groove 31, the stopper 24 and the shift block 23 are in contact with each other, and the stopper 24 gradually slides to the side away from the shift block 23; when the mounting plate 21 slides to the end of the slide groove 31, the stopper 24 is separated from the contact with the shift block 23, and at this time, under the action of the elastic rope 25, the mounting plate 21 slides in the opposite direction to reset, thereby blowing and cooling the next workpiece 17 to be rough-polished.

[0061] After the stopper 24 and the shifting block 23 are disengaged from the contact, the support plate 14 continues to rotate, and the surface of the workpiece 17 after rough polishing can contact the bristles 41, so that the bristles 41 can brush off the debris on the surface of the workpiece 17, and the workpiece 17 can be cleaned again. Then, as the support plate 14 rotates, the bevel rack 91 and the bevel gear 92 at the end of the support plate 14 mesh, and at this time, under the cooperation of the bevel rack 91 and the bevel gear 92, the rotation of the support plate 14 can drive the baffle 8 to rotate, so that the first air outlet 71 is closed and the second air outlet 72 is opened, and then the wind blown into the connecting plate 7 by the second fan 52 can be discharged upward through the second air outlet 72 and the exhaust pipe 6, thereby blowing off the debris adhering to the bristles 41, which helps to ensure the subsequent cleaning effect of the bristles 41. Then the bevel rack 91 disengages from the bevel gear 92, and under the action of the elastic member 93, the baffle 8 rotates in the opposite direction to reset, so that the first air outlet 71 is opened and the second air outlet 72 is closed, and the gas in the connecting plate 7 is discharged into the liquid storage pipe 51 through the first air outlet 71, so that the polishing liquid in the liquid storage pipe 51 is sprayed onto the workpiece 17 on the fine polishing station, so that the workpiece 17 is continuously cooled during the fine polishing process.

[0062] The above are optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A double-precision polishing device for hard and brittle materials, characterized in that: include: A polishing mechanism (1) and a cleaning mechanism (2); The polishing mechanism (1) comprises a frame (11), a rough polishing assembly (12), a fine polishing assembly (13) and a support plate (14); the rough polishing assembly (12) and the fine polishing assembly (13) are both arranged on the frame (11); the support plate (14) is located below the rough polishing assembly (12) and the fine polishing assembly (13); the support plate (14) is rotatably arranged on the frame (11); a plurality of placement stations (141) for placing workpieces (17) are arranged on a peripheral spacer ring of the support plate (14); the spacing between two adjacent placement stations (141) is the same as the spacing between the rough polishing assembly (12) and the fine polishing assembly (13); The cleaning mechanism (2) comprises a mounting plate (21), a first fan (22), a shifting block (23), a stopper (24) and a reset member; the mounting plate (21) is slidably arranged on the frame (11); the first fan (22) is arranged on the mounting plate (21); an air outlet of the first fan (22) faces the support plate (14); the shifting block (23) is arranged on the support plate (14); the stopper (24) is arranged on the mounting plate (21); when the shifting block (23) and the stopper (24) are in contact with each other, the shifting block (23) can drive the stopper (24) to slide when moving so that the mounting plate (21) and the support plate (14) move synchronously; the reset member is arranged between the mounting plate (21) and the frame (11); the reset member is used to drive the mounting plate (21) to slide in the opposite direction to an initial position after moving synchronously with the support plate (14); The reset member comprises an elastic rope (25), wherein the elastic rope (25) is fixedly connected between the mounting plate (21) and the frame (11); a support plate (3) is arranged on the frame (11) at the outer side of the support plate (14); an arc-shaped slide groove (31) is provided on the support plate (3); a distance between the slide groove (31) and a placement station (141) located on the support plate (14) gradually increases along the extension direction of the slide groove (31); a slider (211) is arranged on the mounting plate (21), wherein the slider (211) is slidably arranged in the slide groove (31); when the slider (211) is located at one end of the slide groove (31), the shift block (23) can be moved to a state of abutting against the stop block (24); when the slider (211) is located at the other end of the slide groove (31), the shift block (23) and the stop block (24) are in a separated state so that the elastic rope (25) drives the mounting plate (21) to reset.

2. A double-precision polishing device for hard and brittle materials according to claim 1, characterized in that: The ends of the shift block (23) and the stop block (24) that are close to each other are both provided with a curved surface (16).

3. The double-precision polishing device for hard and brittle materials according to claim 1, characterized in that: A brush plate (4) is provided on the frame (11) at a side of the fine polishing assembly (13) close to the rough polishing assembly (12), and bristles (41) are provided on the brush plate (4), wherein the bottom ends of the bristles (41) can abut against a workpiece (17) located on the placement station (141).

4. A double-precision polishing device for hard and brittle materials according to claim 3, characterized in that: A spray mechanism (5) is arranged on one side of the fine polishing assembly (13) on the frame (11), the spray mechanism (5) comprising a liquid storage pipe (51) and a second fan (52), the liquid storage pipe (51) being provided with a cavity for accommodating polishing liquid, the air outlet of the second fan (52) being connected to the interior of the liquid storage pipe (51), and a liquid outlet (5111) being arranged at one end of the liquid storage pipe (51) away from the second fan (52), the liquid outlet (5111) facing the placement station (141), so that the polishing liquid in the liquid storage pipe (51) can be squeezed out under pressure after the second fan (52) is started.

5. A double-precision polishing device for hard and brittle materials according to claim 4, characterized in that: An exhaust pipe (6) is arranged on one side of the brush plate (4) on the frame (11), the outlet of the exhaust pipe (6) faces the bristles (41); a connecting plate (7) is arranged on the outer side of the support plate (14) on the frame (11), a cavity is arranged inside the connecting plate (7), the cavity inside the connecting plate (7) is connected to the air outlet of the second fan (52); a first air outlet (71) and a second air outlet (72) are arranged at intervals on the circumference of the connecting plate (7), the first air outlet (71) is connected to the liquid storage pipe (51), and the second air outlet (72) is connected to the exhaust pipe (6); a baffle (8) is rotatably arranged in the connecting plate (7), the baffle (8) is used to cover one of the first air outlet (71) and the second air outlet (72); and a driving mechanism (9) for driving the baffle (8) to rotate is arranged on one side of the connecting plate (7).

6. A double-precision polishing device for hard and brittle materials according to claim 5, characterized in that: The driving mechanism (9) comprises a bevel rack (91), a bevel gear (92) and an elastic member (93); the bevel rack (91) is fixedly connected to the outer side of the support plate (14); the bevel gear (92) is located between the brush plate (4) and the fine polishing assembly (13); the bevel gear (92) is rotatably arranged on the frame (11); the axis of the bevel gear (92) and the rotation axis of the baffle (8) are coaxially arranged; the bevel gear (92) and the baffle (8) are fixedly connected; the bevel gear (92) is used to mesh with the bevel rack (91); and the elastic member (93) is connected between the baffle (8) and the inner wall of the connecting plate (7) and is used to drive the baffle (8) to reset.

7. The double-precision polishing device for hard and brittle materials according to claim 5, characterized in that: The exhaust pipe (6) is located below the brush plate (4), and the outlet of the exhaust pipe (6) faces upward.

8. The double-precision polishing device for hard and brittle materials according to claim 4, characterized in that: The support plate (14) is in the shape of a cross, and a collection box (10) is provided below the support plate (14).

9. A double-precision polishing device for hard and brittle materials according to claim 8, characterized in that: A liquid replenishing mechanism (15) is arranged on one side of the liquid storage tube (51), and the liquid replenishing mechanism (15) comprises a liquid storage tank (151), a pump body (152) and a filter screen (153); the liquid storage tube (51) and the interior of the liquid storage tank (151) are connected; the liquid inlet end of the pump body (152) is connected to the interior of the collection box (10); the liquid outlet end of the pump body (152) is connected to the interior of the liquid storage tank (151); and the filter screen (153) is arranged at the liquid inlet end of the pump body (152).

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