Optical glass integrated reflector polishing equipment and method

Abstract

The invention is suitable for the technical field of polishing equipment, and provides optical glass integrated reflector polishing equipment and method. A first motor is installed at the upper end of the bottom plate, a rotating disc is installed at the top of an output shaft of the first motor, and an electromagnetic block is installed on the upper surface of the rotating disc. According to the optical glass integrated reflector polishing equipment and method, the electromagnetic block rotating at a high speed drives the magnetic abrasive in the polishing barrel to move orderly on the surface of the reflector, tiny protrusions on the surface of a workpiece can be accurately removed through the movement, high-precision polishing is achieved, and the polishing efficiency is improved. Dust generated during polishing can be sucked in through the dust collecting groove, dust removal in the polishing process is achieved, the obliquely-installed positioning frame pushes the polishing barrel to the dead center of the supporting frame and presses the polishing barrel tightly, the polishing barrel can be positioned and fixed through the arrangement, and the situation that the position of a magnetic abrasive material deviates due to the fact that the polishing barrel is not right in position is avoided; and therefore, the polishing is more uniform and thorough.

Description

Technical Field

[0001] The present invention belongs to the technical field of polishing equipment, and in particular relates to an optical glass integrated mirror polishing equipment and method. Background Art

[0002] Glass is an amorphous inorganic non-metallic material. Optical glass can be used to manufacture lenses, prisms, mirrors, windows, etc. in optical instruments. Before use, the surface of optical glass needs to be polished. Currently, there are various polishing methods for optical glass, including electromagnetic polishing. Electromagnetic polishing is achieved by generating a controllable magnetic field to make the magnetic abrasive medium move orderly on the surface of the workpiece, thereby achieving the polishing effect.

[0003] Currently, there are still some problems when using electromagnetic polishing equipment. First, the container filled with electromagnetic abrasive cannot be quickly and effectively fixed directly above the electromagnetic block, which easily causes the electromagnetic abrasive to move towards one side of the container, resulting in uneven polishing. In addition, a lot of dust will be generated during the polishing of the electromagnetic abrasive, and the dust will fly into the air. Moreover, there are also noise pollution and electromagnetic radiation, which are harmful to human health. Summary of the Invention

[0004] The present invention provides an optical glass integrated mirror polishing equipment and method, aiming to solve the problems that the container of the current electromagnetic polishing cannot be quickly positioned and fixed, and there are dust, noise and electromagnetic radiation pollution.

[0005] The present invention is implemented as follows. An optical glass integrated mirror polishing equipment includes a bottom plate; a first motor is installed at the upper end of the bottom plate, a turntable is installed at the top of the output shaft of the first motor, an electromagnetic block is installed on the upper surface of the turntable, a support frame is installed at the upper end of the bottom plate, a polishing cylinder is placed on the upper end of the support frame, the electromagnetic block is located below the support frame, a placement rack is arranged inside the polishing cylinder, a limiting groove is installed inside the placement rack, a fixing frame is installed at the upper end of the support frame, a fixing pipe is installed on the lower side of the top of the fixing frame, a connecting pipe is slidably installed on the lower side of the fixing pipe, a three-way pipe is installed at the bottom of the connecting pipe, the fixing pipe and the connecting pipe are slidably inserted and communicated with each other, a dust collection tank is installed at the top of the fixing frame, the top of the fixing pipe is connected and communicated with the dust collection tank, a fan is installed at the top of the dust collection tank, an electric cylinder is installed on the lower side of the top of the fixing frame, a fixing sleeve is installed on the surface of the connecting pipe, the output shaft of the electric cylinder is connected to the fixing sleeve, and an opening is arranged on the left side of the fixing frame, and a door panel is installed at the opening.

[0006] Preferably, a connecting sleeve is mounted on the surface of the connecting pipe, and a positioning frame is mounted on the side of the connecting sleeve. There are four groups of the positioning frames, and the four groups of positioning frames are distributed in a circumferential array on the side of the connecting sleeve. The positioning frames are fixedly inclined.

[0007] Preferably, the connecting sleeve is slidably sleeved outside the connecting pipe. The connecting sleeve is slidably connected to the connecting pipe and cannot rotate. A spring is sleeved on the surface of the connecting pipe, and the upper and lower ends of the spring are respectively connected to the fixed sleeve and the connecting sleeve.

[0008] Preferably, a second motor is mounted at the center of the bottom of the three-way pipe. The output shaft of the second motor is connected with a friction plate. A limiting ring is mounted on the inner side wall of the polishing cylinder. A plurality of balls are embedded in the upper end of the limiting ring in a circumferential array. The placing rack can rotate inside the polishing cylinder. A friction disc is mounted at the center of the placing rack. The friction plate is located directly above the friction disc.

[0009] Preferably, an opening is provided at the top of the dust collection groove, and a filter screen is mounted at the opening. The filter screen is located at the air inlet of the fan. A dust box is mounted inside the dust collection groove. A notch is provided on the left side of the dust box and the top is open. The dust box is slidably snapped into the dust collection groove from the side.

[0010] Preferably, the limiting groove is disc-shaped. The limiting groove fixes the lens by interference through the rubber ring inside. Both ends of the limiting groove are rotatably connected.

[0011] Preferably, the fixing frame is double-layered and filled with sound insulation cotton. A shock pad is mounted on the surface of the placing rack.

[0012] Preferably, an isolation frame is mounted on the lower side of the support frame. The isolation frame is made of lead.

[0013] Also disclosed is a polishing method for the above-mentioned integrated optical glass mirror, including the following steps; S1: When the device is in use, first place the lens into the polishing cylinder, place it in the limiting groove in the placing rack and pour in the magnetic abrasive. Then place the polishing cylinder on the surface of the support frame, start the electric cylinder, and the electric cylinder pushes the connecting pipe downward through the fixed sleeve. When the connecting pipe slides downward, the pipe opening at the bottom of the three-way pipe approaches the polishing cylinder, so as to improve the dust collection effect. At the same time, the connecting sleeve outside the connecting pipe slides downward, so that the four groups of positioning frames move downward. The inclined positioning frames push the polishing cylinder to the center of the support frame and press it tightly; S2: Start the first motor, and the first motor drives the turntable to rotate. At this time, the electromagnetic blocks on the surface of the turntable are energized and rotate at a high speed, so that the magnetic abrasive medium forms an orderly movement on the surface of the lens. This movement can precisely remove the tiny protrusions on the surface of the workpiece and achieve high-precision polishing; S3: The connecting pipe moves downward until the friction plate is in close contact with the friction disc of the placement rack. Then, start the second motor. The second motor drives the friction plate to rotate, and the friction disc rotates following the friction force of the friction plate, thereby causing the entire placement rack to rotate. By rotating, all positions of the lens come into full contact with the magnetic abrasive, improving the polishing effect. S4: When polishing the lens, the blower can be started to create negative pressure inside the dust collection tank. The dust collection tank causes suction at the two nozzles at the bottom of the three-way pipe through the fixed pipe and the connecting pipe, thereby sucking the dust generated during polishing into the dust collection tank, thus achieving dust removal during the polishing process.

[0014] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects: The device drives the magnetic abrasive in the polishing cylinder to form an orderly movement on the lens surface through the high-speed rotating electromagnetic block. This movement can precisely remove the tiny protrusions on the workpiece surface, achieving high-precision polishing. By setting the dust collection tank, the dust generated during polishing can be sucked in, achieving dust removal during the polishing process. The inclined installation of the positioning rack pushes the polishing cylinder to the exact center of the support frame and presses it tightly. Through this setting, the polishing cylinder can be positioned and fixed, avoiding deviation of the position of the magnetic abrasive due to incorrect placement, thereby making the polishing more uniform and thorough. By setting the elastic force generated by the spring to press the positioning rack tightly, this pressing method enables the positioning rack to slide upward following the connecting sleeve. Therefore, this setting can position and fix polishing cylinders of different heights. The friction disc rotates following the friction force of the friction plate, thereby causing the entire placement rack to rotate. By rotating, all positions of the lens come into full contact with the magnetic abrasive, improving the polishing effect. By filling sound insulation cotton in the fixed frame, its sound insulation effect can be improved, reducing the noise of the polishing device. By setting shock pads, the noise generated by the vibration of the polishing cylinder can be reduced. By setting an isolation frame, the electromagnetic radiation generated by the electromagnetic block can be isolated, thereby improving the safety of the polishing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front sectional structure schematic diagram of the present invention; Figure 2 is the three-dimensional structure schematic diagram of the internal structure of the present invention; Figure 3 is the sectional structure schematic diagram of the polishing cylinder of the present invention; Figure 4 is the top sectional structure schematic diagram of the placement rack of the present invention; Figure 5 is the sectional structure schematic diagram of the internal structure of the present invention; Figure 6 is the top sectional structure schematic diagram of the connecting sleeve of the present invention; In the figure: 1, bottom plate; 2, first motor; 3, turntable; 4, electromagnetic block; 5, support frame; 6, polishing cylinder; 7, placement rack; 8, limit groove; 9, fixed frame; 10, fixed pipe; 11, connecting pipe; 12, three-way pipe; 13, dust collection tank; 14, fan; 15, electric cylinder; 16, fixed sleeve; 17, door panel; 18, connecting sleeve; 19, positioning frame; 20, spring; 21, second motor; 22, friction plate; 23, limit ring; 24, ball; 25, friction disc; 26, filter screen; 27, dust box; 28, shock pad; 29, isolation frame. Detailed implementation manners

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0017] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0018] An embodiment of the present invention provides an optical glass integrated mirror polishing device, as Figures 1-6As shown in the figure, it includes a bottom plate 1. A first motor 2 is installed at the upper end of the bottom plate 1. The top of the output shaft of the first motor 2 is installed with a turntable 3. An electromagnetic block 4 is installed on the upper surface of the turntable 3. A support frame 5 is installed at the upper end of the bottom plate 1. A polishing cylinder 6 is placed on the upper end of the support frame 5. The electromagnetic block 4 is located below the support frame 5. A placement rack 7 is arranged inside the polishing cylinder 6. A limiting groove 8 is installed inside the placement rack 7. A fixing frame 9 is installed at the upper end of the support frame 5. A fixing pipe 10 is installed on the lower side of the top of the fixing frame 9. A connecting pipe 11 is slidably installed on the lower side of the fixing pipe 10. A tee pipe 12 is installed at the bottom of the connecting pipe 11. The fixing pipe 10 and the connecting pipe 11 are slidably inserted and communicated with each other. A dust collection groove 13 is installed at the top of the fixing frame 9. The top of the fixing pipe 10 is connected and communicated with the dust collection groove 13. A fan 14 is installed at the top of the dust collection groove 13. An electric cylinder 15 is installed on the lower side of the top of the fixing frame 9. A fixing sleeve 16 is installed on the surface of the connecting pipe 11. The output shaft of the electric cylinder 15 is connected to the fixing sleeve 16. An opening is provided on the left side of the fixing frame 9, and a door plate 17 is installed at the opening. When the device is in use, first place the lens into the polishing cylinder 6, place it in the limiting groove 8 in the placement rack 7 and pour in the magnetic abrasive. Then place the polishing cylinder 6 on the surface of the support frame 5. Start the first motor 2, and the first motor 2 drives the turntable 3 to rotate. At this time, the electromagnetic block 4 on the surface of the turntable 4 is energized and rotates at a high speed. The magnetic abrasive in the polishing cylinder 6 polishes the lens under the magnetic field action of the electromagnetic block 4. When the lens is being polished, the fan 14 can be started to generate negative pressure inside the dust collection groove 13. The dust collection groove 13 makes the two nozzles at the bottom of the tee pipe 12 generate suction through the fixing pipe 10 and the connecting pipe 11, so as to suck the dust generated during polishing into the dust collection groove 13, thus realizing dust removal during the polishing process. Start the electric cylinder 15, and the electric cylinder 15 pushes the connecting pipe 11 downward through the fixing sleeve 16. When the connecting pipe 11 slides downward, the nozzle at the bottom of the tee pipe 12 approaches the polishing cylinder 6, so as to improve the dust suction effect. The device drives the magnetic abrasive in the polishing cylinder 6 to form an orderly movement on the surface of the lens through the high-speed rotating electromagnetic block 4. This movement can accurately remove the tiny protrusions on the surface of the workpiece and achieve high-precision polishing. By setting the dust collection groove 13, the dust generated during polishing can be sucked in to realize dust removal during the polishing process.

[0019] A connecting sleeve 18 is mounted on the surface of the connecting pipe 11, and a positioning frame 19 is mounted on the side of the connecting sleeve 18. There are four groups of positioning frames 19, and the four groups of positioning frames 19 are distributed in a circumferential array on the side of the connecting sleeve 18. The positioning frame 19 is fixedly installed obliquely. By providing the positioning frame 19, when the electric cylinder 15 pushes the connecting pipe 11 downward, the connecting sleeve 18 outside the connecting pipe 11 slides downward, causing the four groups of positioning frames 19 to move downward. The obliquely installed positioning frame 19 pushes the polishing cylinder 6 to the exact center of the support frame 5 and presses it tightly. Through this setting, the polishing cylinder 6 can be positioned and fixed, avoiding the deviation of the magnetic abrasive position caused by incorrect placement position, so that the polishing is more uniform and thorough.

[0020] The connecting sleeve 18 is slidably sleeved outside the connecting pipe 11. The connecting sleeve 18 is slidably connected to the connecting pipe 11 and cannot rotate. A spring 20 is sleeved on the surface of the connecting pipe 11. The upper and lower ends of the spring 20 are respectively connected to the fixed sleeve 16 and the connecting sleeve 18. By providing the spring 20, the heights of different polishing cylinders 6 are different. The elastic force generated by setting the spring 20 is used to make the positioning frame 19 press tightly. This pressing method enables the positioning frame 19 to slide upward following the connecting sleeve 18. Therefore, this setting can position and fix polishing cylinders 6 of different heights.

[0021] A second motor 21 is installed at the center of the bottom of the three-way pipe 12. The output shaft of the second motor 21 is connected with a friction plate 22. A limiting ring 23 is installed on the inner side wall of the polishing cylinder 6. A plurality of balls 24 are embedded in the upper end of the limiting ring 23 in a circumferential array. The placing rack 7 can rotate inside the polishing cylinder 6. A friction disc 25 is installed at the center of the placing rack 7. The friction plate 22 is located directly above the friction disc 25. By providing the friction plate 22, the connecting pipe 11 moves downward until the friction plate 22 is in close contact with the friction disc 25 of the placing rack 7. At this time, the second motor 21 can be started. The second motor 21 drives the friction plate 22 to rotate, and the friction disc 25 rotates following the friction force of the friction plate 22, so that the whole placing rack 7 rotates. By rotating, all positions of the lens are fully contacted with the magnetic abrasive, improving the polishing effect.

[0022] An opening is provided at the top of the dust collection groove 13, and a filter screen 26 is installed at the opening. The filter screen 26 is located at the air inlet of the blower 14. A dust box 27 is installed inside the dust collection groove 13. A notch is provided on the left side of the dust box 27 and the top is open. The dust box 27 is slidably snapped into the dust collection groove 13 from the side. By providing the filter screen 26, the filter screen 26 can prevent the dust inhaled into the dust collection groove 13 from being inhaled into the blower 14 again and discharged outward. By providing the slidably installed dust box 27, it is convenient to take out the inhaled dust from the dust collection groove 13.

[0023] The limiting groove 8 is arranged in a disc shape. The lens is fixed with interference by the rubber ring on the inner side of the limiting groove 8. Both ends of the limiting groove 8 are rotationally connected. By rotatably installing the limiting groove 8, the lens can be tilted, so that the magnetic abrasive can polish all positions of the lens, avoiding polishing dead corners.

[0024] The fixing frame 9 is double-layered and filled with sound insulation cotton inside. A shock pad 28 is installed on the surface of the placing rack 7. By filling sound insulation cotton in the fixing frame 9, its sound insulation effect can be improved, and noise reduction treatment is carried out on the polishing device. By setting the shock pad 28, the noise generated by the vibration of the polishing cylinder 6 can be reduced.

[0025] An isolation frame 29 is installed on the lower side of the support frame 5. The isolation frame 29 is made of lead. By providing the isolation frame 29, the electromagnetic radiation generated by the electromagnetic block 4 can be isolated, thereby improving the safety of the polishing device.

[0026] A polishing method for the above-mentioned integrated reflecting mirror of optical glass is also disclosed, including the following steps; S1: When the device is used, first place the lens into the polishing cylinder 6, place it in the limiting groove 8 in the placing rack 7 and pour in the magnetic abrasive. Then place the polishing cylinder 6 on the surface of the support frame 5, start the electric cylinder 15, and the electric cylinder 15 pushes the connecting pipe 11 downward through the fixed sleeve 16. When the connecting pipe 11 slides downward, the pipe orifice at the bottom of the three-way pipe 12 approaches the polishing cylinder 6, so as to improve the dust suction effect. At the same time, the connecting sleeve 18 outside the connecting pipe 11 slides downward, so that the four positioning frames 19 move downward. The inclined positioning frames 19 push the polishing cylinder 6 to the center of the support frame 5 and press it tightly; S2: Start the first motor 2, and the first motor 2 drives the turntable 3 to rotate. At this time, the electromagnetic block 4 on the surface of the turntable 3 is energized and rotates at a high speed, so that the magnetic grinding medium forms an orderly movement on the surface of the lens. This kind of movement can accurately remove the tiny protrusions on the surface of the workpiece and achieve high-precision polishing; S3: The connecting pipe 11 moves downward until the friction plate 22 is in close contact with the friction disc 25 of the placing rack 7. Start the second motor 21, and the second motor 21 drives the friction plate 22 to rotate. The friction disc 25 rotates following the friction force of the friction plate 22, so that the whole placing rack 7 rotates. By rotating, all positions of the lens are fully contacted with the magnetic abrasive, improving the polishing effect; S4: When the lens is being polished, the blower 14 can be started to generate negative pressure inside the dust collection groove 13. The dust collection groove 13 makes the two pipe orifices at the bottom of the three-way pipe 12 generate suction through the fixed pipe 10 and the connecting pipe 11, so as to suck the dust generated during polishing into the dust collection groove 13, thereby realizing dust removal during the polishing process.

[0027] It should be noted that, for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be adopted in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0028] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the above-mentioned unit division may have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the shown or discussed coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0029] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative work, combine, add or delete the features in the embodiments of the present invention according to the situation, or make other adjustments, so as to obtain different technical solutions that are essentially not divorced from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. An integrated optical glass mirror polishing device, characterized in that, It includes a bottom plate (1): A first motor (2) is installed at the upper end of the bottom plate (1). A turntable (3) is installed at the top of the output shaft of the first motor (2). An electromagnetic block (4) is installed on the upper surface of the turntable (3). A support frame (5) is installed at the upper end of the bottom plate (1). A polishing cylinder (6) is placed at the upper end of the support frame (5). The electromagnetic block (4) is located below the support frame (5). A placement rack (7) is arranged inside the polishing cylinder (6). A limiting groove (8) is installed inside the placement rack (7). A fixing frame (9) is installed at the upper end of the support frame (5). A fixing pipe (10) is installed below the top of the fixing frame (9). A connecting pipe (11) is slidably installed below the fixing pipe (10). A tee pipe (12) is installed at the bottom of the connecting pipe (11). The fixing pipe (10) and the connecting pipe (11) are slidably inserted and communicate with each other. A dust collection groove (13) is installed at the top of the fixing frame (9). The top of the fixing pipe (10) is connected and communicated with the dust collection groove (13). A fan (14) is installed at the top of the dust collection groove (13). An electric cylinder (15) is installed below the top of the fixing frame (9). A fixing sleeve (16) is installed on the surface of the connecting pipe (11). The output shaft of the electric cylinder (15) is connected to the fixing sleeve (16). A door panel (17) is installed at the opening on the left side of the fixing frame (9).

2. An integrated optical glass mirror polishing device according to claim 1, characterized in that, A connecting sleeve (18) is installed on the surface of the connecting pipe (11). A positioning frame (19) is installed on the side of the connecting sleeve (18). There are four groups of the positioning frames (19), and the four groups of the positioning frames (19) are distributed in a circumferential array on the side of the connecting sleeve (18). The positioning frame (19) is fixedly inclined.

3. The integrated optical glass mirror polishing device according to claim 2, characterized in that, The connecting sleeve (18) is slidably sleeved outside the connecting pipe (11). The connecting sleeve (18) and the connecting pipe (11) are slidably connected and cannot rotate. A spring (20) is sleeved on the surface of the connecting pipe (11). The upper and lower ends of the spring (20) are respectively connected to the fixing sleeve (16) and the connecting sleeve (18).

4. An optical glass integrated mirror polishing device according to claim 1, characterized in that, A second motor (21) is installed at the center of the bottom of the tee pipe (12). The output shaft of the second motor (21) is connected with a friction plate (22). A limiting ring (23) is installed on the inner side wall of the polishing cylinder (6). A plurality of balls (24) are embedded in the upper end of the limiting ring (23) in a circumferential array. The placement rack (7) can rotate inside the polishing cylinder (6). A friction disc (25) is installed at the center of the placement rack (7). The friction plate (22) is located directly above the friction disc (25).

5. An optical glass integrated mirror polishing device according to claim 1, characterized in that, An opening is provided at the top of the dust collection groove (13), and a filter screen (26) is installed at the opening. The filter screen (26) is located at the air inlet of the fan (14). A dust box (27) is installed inside the dust collection groove (13). A notch is provided on the left side of the dust box (27) and the top is open. The dust box (27) is slidably snapped into the dust collection groove (13) from the side.

6. An optical glass integrated mirror polishing device according to claim 1, characterized in that, The limiting groove (8) is arranged in a disc shape. The limiting groove (8) fixes the lens in an interference fit through the rubber ring on the inner side, and both ends of the limiting groove (8) are rotatably connected.

7. An optical glass integrated mirror polishing device according to claim 1, characterized in that, The fixing frame (9) is double-layered and filled with sound insulation cotton inside, and a shock pad (28) is installed on the surface of the placement rack (7).

8. An optical glass integrated mirror polishing device according to claim 1, characterized in that, An isolation frame (29) is installed on the lower side of the support frame (5), and the isolation frame (29) is made of lead.

9. An optical glass integrated mirror polishing method according to any one of claims 1-8: S1: When the device is in use, first place the lens into the polishing cylinder (6), place it in the limiting groove (8) in the placement rack (7) and pour in the magnetic abrasive. Then place the polishing cylinder (6) on the surface of the support frame (5), start the electric cylinder (15), and the electric cylinder (15) pushes the connecting pipe (11) downward through the fixing sleeve (16). When the connecting pipe (11) slides downward, the pipe orifice at the bottom of the tee pipe (12) approaches the polishing cylinder (6), thereby improving the dust collection effect. At the same time, the connecting sleeve (18) outside the connecting pipe (11) slides downward, causing the four positioning frames (19) to move downward. The inclined positioning frames (19) push the polishing cylinder (6) to the center of the support frame (5) and press it tightly. S2: Start the first motor (2), and the first motor (2) drives the turntable (3) to rotate. At this time, the electromagnets (4) on the surface of the turntable (3) are energized and rotate at a high speed, causing the magnetic grinding medium to form an orderly movement on the surface of the lens. This movement can precisely remove the tiny protrusions on the surface of the workpiece and achieve high-precision polishing. S3: The connecting pipe (11) moves downward until the friction plate (22) is in close contact with the friction disc (25) of the placement rack (7). Start the second motor (21), and the second motor (21) drives the friction plate (22) to rotate. The friction disc (25) rotates following the friction force of the friction plate (22), so that the entire placement rack (7) rotates. By rotating, each position of the lens is fully contacted with the magnetic abrasive, improving the polishing effect. S4: When the lens is being polished, the blower (14) can be started to generate negative pressure inside the dust collection groove (13). The dust collection groove (13) makes the two pipe orifices at the bottom of the tee pipe (12) generate suction through the fixed pipe (10) and the connecting pipe (11), thereby sucking the dust generated during polishing into the dust collection groove (13), and thus realizing dust removal during the polishing process.

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