Electromagnetic conversion mechanism for optical grinding

Abstract

The utility model discloses an electromagnetic conversion mechanism for optical grinding, which relates to the technical field of polishing processing, and comprises an electromagnetic grinding component, an electromagnetic conversion component and a polishing component, the heat dissipation assembly is used for heat dissipation of the electromagnetic grinding assembly; the protection shell is used for installing the electromagnetic grinding assembly and the heat dissipation assembly; a mounting cavity is formed in the protective shell, a mounting opening communicating with the mounting cavity is formed in the top of the protective shell, the electromagnetic grinding assembly is arranged above the protective shell, one end of the electromagnetic grinding assembly penetrates through the mounting opening, extends into the mounting cavity and is detachably connected with the mounting cavity, and a heat dissipation opening matched with the heat dissipation assembly is formed in the bottom of the protective shell. And the heat dissipation assembly is arranged in the mounting cavity and matched with the heat dissipation opening, the heat dissipation assembly is located below the electromagnetic grinding assembly, and the problems that when an existing electromagnetic polishing machine is used, the cooling time of an electromagnetic coil is long, and the grinding efficiency is not high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing processing, in particular to an electromagnetic conversion mechanism for optical grinding. Background Technique

[0002] An electromagnetic polishing machine is a grinding mechanism that converts electromagnetic force into mechanical force. Structurally, it mainly includes a grinding disc, an energizable electromagnetic coil, and a permanent magnet. The permanent magnet is arranged at the bottom of the grinding disc, and at the same time, the electromagnetic coil is arranged below the permanent magnet, so that the permanent magnet is exposed to the alternating magnetic field generated by the energization of the electromagnetic coil. Its working principle is as follows: when an electric current is passed through, the current passes through the electromagnetic coil in turn, so that the electromagnetic coil generates a clockwise or counterclockwise alternating magnetic field. By controlling the frequency and magnitude of the current, the intensity and direction of the alternating magnetic field can be changed. The magnetic moment inside the permanent magnet exposed to the alternating magnetic field will be reoriented with the change of the alternating magnetic field. During the reorientation process, the permanent magnet will rotate due to the action of torque, and then drive the grinding disc to rotate.

[0003] During the use of the electromagnetic coil, part of the electrical energy will be converted into heat energy, resulting in an increase in the temperature of the electromagnetic coil. When the temperature is higher than a certain threshold, the electromagnetic coil will be damaged. At present, when solving the problem of the increase in the temperature of the electromagnetic coil in an electromagnetic polishing machine, most of them are to wait for the electromagnetic coil to cool down after power-off and then continue to use. During the process of waiting for the electromagnetic coil to cool down, the electromagnetic polishing machine cannot continue to complete grinding. Therefore, when the current electromagnetic polishing machine is in use, there are problems of long cooling time of the electromagnetic coil and low grinding efficiency.

[0004] In the utility model with the application number: CN202322545817.4 and the publication number: CN220740651U, a polishing base grinding for an electromagnetic polishing machine is disclosed, including a base body and a movable structure. The movable structure is arranged on the base body, and the movable structure includes an electromagnetic disc and a polishing base layer. The polishing base layer is arranged on the electromagnetic disc. A turntable is arranged on the base body, and the turntable is rotatably connected to the base body. A fixed table is arranged on the turntable; the electromagnetic disc includes a magnet layer and a power layer. A magnetic body is arranged in the magnet layer, and an electromagnetic coil is arranged in the power layer. The power layer is arranged on the fixed table. The power layer is rotatably connected to the fixed table. A shaft hole is arranged on the fixed table, and a connecting shaft is arranged on the power layer. The connecting shaft is rotationally matched with the shaft hole; a groove is arranged on the fixed table, and a stop block is arranged on the connecting shaft. The stop block is matched with the groove, but it still has the problems of long cooling time of the electromagnetic coil and low grinding efficiency. Content of the Utility Model

[0005] Based on this, in view of the above problems, the present utility model proposes an electromagnetic conversion mechanism for optical grinding, which solves the problems that the current electromagnetic polishing machine has a long cooling time for the electromagnetic coil and low grinding efficiency during use.

[0006] The technical solution of the present utility model is as follows:

[0007] An electromagnetic conversion mechanism for optical grinding, comprising:

[0008] An electromagnetic grinding assembly for grinding optical lenses;

[0009] A heat dissipation assembly for dissipating heat from the electromagnetic grinding assembly;

[0010] A protective housing for installing the electromagnetic grinding assembly and the heat dissipation assembly;

[0011] An installation cavity is provided in the protective housing, and an installation opening communicating with the installation cavity is provided at the top of the protective housing. The electromagnetic grinding assembly is arranged above the protective housing, and one end extends through the installation opening into the installation cavity and is detachably connected to the installation cavity. A heat dissipation opening is provided at the bottom of the protective housing and is arranged in cooperation with the heat dissipation assembly. The heat dissipation assembly is arranged in the installation cavity and is arranged in cooperation with the heat dissipation opening. The heat dissipation assembly is located below the electromagnetic grinding assembly.

[0012] Preferably, the heat dissipation assembly includes an installation table and a heat dissipation fan. The installation table is fixedly arranged at the inner bottom of the installation cavity. An air flow channel communicating with the heat dissipation opening is provided on the installation table. The air flow channel penetrates through the installation table. The heat dissipation fan is detachably connected to the installation table and is arranged in cooperation with the air flow channel.

[0013] Preferably, the heat dissipation fan includes an installation housing, a cross-shaped mounting frame, a driving motor and heat dissipation fan blades. The cross-shaped mounting frame is arranged on the installation housing. A fixing ring is provided in the middle of the cross-shaped mounting frame. The driving motor is fixedly arranged in the fixing ring. The heat dissipation fan blades are fixedly arranged on the output shaft of the driving motor. The installation housing is detachably connected to the installation table.

[0014] Preferably, an installation ring is provided at the top of the installation table, and a mating ring is provided on the installation housing and is arranged in cooperation with the installation ring. The installation ring and the mating ring are detachably connected by bolts.

[0015] Preferably, a dust separation plate is provided at the bottom of the protective housing. The dust separation plate is arranged in cooperation with the heat dissipation opening and is detachably connected to the protective housing by bolts. A plurality of first air flow grooves for air flow are provided on the dust separation plate.

[0016] Preferably, a limiting ring is provided at the upper end inside the installation cavity. The limiting ring is fixedly connected to the inner side wall of the installation cavity. The electromagnetic grinding assembly is detachably connected to the limiting ring.

[0017] Preferably, the electromagnetic grinding assembly includes a first mounting disc, a second mounting disc, a connecting rotating shaft, a grinding member, a plurality of electromagnetic coils and a plurality of magnetic bodies. The first mounting disc is arranged on the limiting ring and is detachably connected to the limiting ring through bolts. The second mounting disc is located above the first mounting disc. The connecting rotating shaft is arranged between the second mounting disc and the first mounting disc. One end of the connecting rotating shaft is rotatably connected to the middle of the first mounting disc, and the other end is fixedly connected to the middle of the second mounting disc. An installation groove is provided at the top of the first mounting disc. A plurality of electromagnetic coils are arranged in the installation groove and are arranged around the connecting rotating shaft. A plurality of magnetic bodies are arranged at the bottom of the second mounting disc and are arranged around the connecting rotating shaft. The grinding member is arranged above the protective housing and is in clearance fit with the protective housing. One end of the grinding member extends into the installation cavity and is fixedly connected to the top of the second mounting disc. Second air circulation grooves for air flow are respectively provided on the first mounting disc and the second mounting disc.

[0018] Preferably, the grinding member includes a grinding mounting disc and a grinding disc. The grinding mounting disc is arranged above the protective housing and is in clearance fit with the protective housing. The lower end of the grinding mounting disc extends into the installation cavity and is fixedly connected to the top of the second mounting disc. The grinding disc is arranged on the grinding mounting disc and is detachably connected to the grinding mounting disc.

[0019] Preferably, a fixing groove is provided on the grinding mounting disc. The grinding disc is arranged in the fixing groove and is detachably connected to the grinding mounting disc through bolts.

[0020] Preferably, a mating groove is provided at the bottom of the grinding mounting disc and is arranged in cooperation with the top of the protective housing. A third air circulation groove for air flow is provided between the mating groove and the protective housing.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] By providing a heat dissipation assembly arranged in cooperation with the electromagnetic grinding assembly, when the electromagnetic grinding assembly is working, the electromagnetic grinding assembly can be cooled by the heat dissipation assembly, so that the electromagnetic grinding assembly can heat up more slowly, thereby prolonging the single grinding duration of the electromagnetic grinding assembly. At the same time, when the electromagnetic grinding assembly is powered off for protection, the electromagnetic grinding assembly can be cooled by the heat dissipation assembly, so that its temperature can drop faster, thereby shortening the cooling duration of the electromagnetic grinding assembly. Compared with the traditional electromagnetic polishing machine, the present utility model has a faster cooling speed and a longer single grinding duration, and solves the problems of long cooling time of the electromagnetic coil and low grinding efficiency existing in the current electromagnetic polishing machine during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic cross-sectional structure diagram of an electromagnetic conversion mechanism for optical grinding described in an embodiment of the present utility model;

[0024] Figure 2 It is a schematic structural diagram of the protective housing described in the embodiment of the present utility model;

[0025] Figure 3 It is a partial structural schematic diagram of an electromagnetic conversion mechanism for optical grinding described in the embodiment of the present utility model;

[0026] Figure 4 It is a partial exploded structural schematic diagram of the electromagnetic grinding assembly and the heat dissipation assembly described in the embodiment of the present utility model Figure 1 ;

[0027] Figure 5 It is a partial exploded structural schematic diagram of the electromagnetic grinding assembly and the heat dissipation assembly described in the embodiment of the present utility model Figure 2 ;

[0028] Figure 6 It is a structural schematic diagram of an electromagnetic conversion mechanism for optical grinding described in the embodiment of the present utility model Figure 1 ;

[0029] Figure 7 It is a structural schematic diagram of an electromagnetic conversion mechanism for optical grinding described in the embodiment of the present utility model Figure 2 ;

[0030] Figure 8 It is described in the embodiment of the present utility model Figure 1 The partial enlarged structural schematic diagram at position A;

[0031] Explanation of reference numerals:

[0032] 10 - electromagnetic grinding assembly, 100 - first mounting disk, 101 - second mounting disk, 102 - connecting rotating shaft, 103 - grinding member, 104 - electromagnetic coil, 105 - magnetic body, 106 - mounting groove, 107 - second air flow channel, 108 - grinding mounting disk, 109 - grinding disk, 110 - fixing groove, 111 - mating groove, 112 - third air flow channel, 20 - heat dissipation assembly, 200 - mounting table, 201 - heat dissipation fan, 202 - air flow passage, 203 - mounting housing, 204 - cross mounting frame, 205 - driving motor, 206 - heat dissipation fan blade, 207 - fixing ring, 208 - mounting ring, 209 - mating ring, 30 - protective housing, 300 - mounting cavity, 301 - mounting opening, 302 - heat dissipation opening, 303 - dust separation plate, 304 - first air flow channel, 305 - limiting ring. Detailed Description of the Invention

[0033] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0034] Embodiment:

[0035] As Figures 1 to 3 shown, to solve the above problems, this embodiment discloses an electromagnetic conversion mechanism for optical grinding, including:

[0036] An electromagnetic grinding assembly 10, which is used to polish optical lenses;

[0037] A heat dissipation assembly 20, which is used for heat dissipation of the electromagnetic grinding assembly 10;

[0038] A protective housing 30, which is used to install the electromagnetic grinding assembly 10 and the heat dissipation assembly 20;

[0039] An installation cavity 300 is provided in the protective housing 30, and an installation port 301 communicating with the installation cavity 300 is provided at the top of the protective housing 30. The electromagnetic grinding assembly 10 is arranged above the protective housing 30, and one end extends through the installation port 301 into the installation cavity 300 and is detachably connected to the installation cavity 300. A heat dissipation port 302 cooperating with the heat dissipation assembly 20 is provided at the bottom of the protective housing 30. The heat dissipation assembly 20 is arranged in the installation cavity 300 and cooperates with the heat dissipation port 302. The heat dissipation assembly 20 is located below the electromagnetic grinding assembly 10.

[0040] By setting the heat dissipation assembly 20 cooperating with the electromagnetic grinding assembly 10 in the present utility model, when the electromagnetic grinding assembly 10 is working, the electromagnetic grinding assembly 10 can be cooled by the heat dissipation assembly 20, so that the electromagnetic grinding assembly 10 can heat up more slowly, thereby prolonging the single grinding duration of the electromagnetic grinding assembly 10. At the same time, when the electromagnetic grinding assembly 10 is powered off for protection, the electromagnetic grinding assembly 10 can be cooled by the heat dissipation assembly 20, so that its temperature can drop faster, thereby shortening the cooling duration of the electromagnetic grinding assembly 10. Compared with the traditional electromagnetic polishing machine, the present utility model has a faster cooling speed and a longer single grinding duration, and solves the problems that the electromagnetic coil 104 has a long cooling time and low grinding efficiency when the current electromagnetic polishing machine is in use.

[0041] As Figures 2 to 5 shown, in order to facilitate heat dissipation of the electromagnetic grinding assembly 10, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the heat dissipation assembly 20 includes an installation table 200 and a heat dissipation fan 201. The installation table 200 is fixedly arranged at the inner bottom of the installation cavity 300. An air flow channel 202 communicating with the heat dissipation port 302 is provided on the installation table 200. The air flow channel 202 penetrates through the installation table 200. The heat dissipation fan 201 is detachably connected to the installation table 200 and cooperates with the air flow channel 202.

[0042] Among them, the cooling fan 201 includes an installation housing 203, a cross mounting bracket 204, a drive motor 205, and cooling fan blades 206. The cross mounting bracket 204 is arranged on the installation housing 203. A fixing ring 207 is provided in the middle of the cross mounting bracket 204. The drive motor 205 is fixedly arranged in the fixing ring 207. The cooling fan blades 206 are fixedly arranged on the output shaft of the drive motor 205. The installation housing 203 is detachably connected to the installation table 200.

[0043] During use, the drive motor 205 can drive the cooling fan blades 206, thereby realizing the heat dissipation of the electromagnetic grinding assembly 10.

[0044] In order to facilitate the installation of the cooling fan 201, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that an installation ring 208 is provided at the top of the installation table 200, and a mating ring 209 is provided on the installation housing 203. The installation ring 208 and the mating ring 209 are detachably connected by bolts.

[0045] During use, the installation ring 208 and the mating ring 209 are detachably connected by bolts, which can quickly realize the installation and disassembly of the cooling fan 201, and facilitate the installation, replacement and maintenance of the cooling fan 201.

[0046] As Figure 6 shown, in order to prevent a large amount of dust or other sundries from entering the protection housing 30, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a dust separation plate 303 is provided at the bottom of the protection housing 30. The dust separation plate 303 is arranged in cooperation with the heat dissipation opening 302 and is detachably connected to the protection housing 30 by bolts. A number of first air flow grooves 304 for air flow are provided on the dust separation plate 303.

[0047] During use, the setting of the dust separation plate 303 can effectively prevent a large amount of dust or other sundries from entering the protection housing 30, thereby reducing the frequency of cleaning the dust in the protection housing 30.

[0048] As Figure 2 、 Figures 4 to 6 shown, in order to facilitate the installation of the electromagnetic grinding assembly 10, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a limiting ring 305 is provided at the upper end inside the installation cavity 300. The limiting ring 305 is fixedly connected to the inner side wall of the installation cavity 300. The electromagnetic grinding assembly 10 is detachably connected to the limiting ring 305.

[0049] Among them, the electromagnetic grinding assembly 10 includes a first mounting disk 100, a second mounting disk 101, a connecting rotating shaft 102, a grinding member 103, a plurality of electromagnetic coils 104 and a plurality of magnetic bodies 105. The first mounting disk 100 is arranged on the limiting ring 305 and is detachably connected to the limiting ring 305 by bolts. The second mounting disk 101 is located above the first mounting disk 100. The connecting rotating shaft 102 is arranged between the second mounting disk 101 and the first mounting disk 100. One end of the connecting rotating shaft 102 is rotatably connected to the middle of the first mounting disk 100, and the other end is fixedly connected to the middle of the second mounting disk 101. An installation groove 106 is provided at the top of the first mounting disk 100. The plurality of electromagnetic coils 104 are arranged in the installation groove 106 and are arranged around the connecting rotating shaft 102. The plurality of magnetic bodies 105 are arranged at the bottom of the second mounting disk 101 and are arranged around the connecting rotating shaft 102. The grinding member 103 is arranged above the protective housing 30 and is in clearance fit with the protective housing 30. One end of the grinding member 103 extends into the installation cavity 300 and is fixedly connected to the top of the second mounting disk 101. Second air circulation grooves 107 for air flow are respectively provided on the first mounting disk 100 and the second mounting disk 101.

[0050] During use, the first mounting disk 100 is arranged on the limiting ring 305 and is detachably connected to the limiting ring 305 by bolts, which can quickly realize the installation and disassembly of the electromagnetic grinding assembly 10.

[0051] Among them, the electromagnetic coil 104 adopts an electromagnetic coil 104 that can realize the functions of the present utility model in the prior art. It is wound by a wire, and the wire can be connected to an AC power supply.

[0052] The magnetic body 105 is a permanent magnet that can realize the functions of the present utility model in the prior art.

[0053] Specifically, during use, an electric current can be passed through the electromagnetic coil 104 through an AC power supply, so that the electric current sequentially passes through the electromagnetic coil 104, thereby enabling the electromagnetic coil 104 to generate a clockwise or counterclockwise alternating magnetic field.

[0054] Then, by controlling the frequency and magnitude of the electric current, the intensity and direction of the alternating magnetic field are changed, and further, the magnetic moments inside the magnetic bodies 105 exposed to the alternating magnetic field are reoriented as the alternating magnetic field changes.

[0055] During the reorientation process, the magnetic bodies 105 interact with the alternating magnetic field. The magnetic bodies 105 rotate due to the action of the torque, and then drive the grinding member 103 to rotate, thereby completing the grinding of the optical lens.

[0056] Such as Figure 7As shown in the figure, in order to facilitate the grinding of optical lenses, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the grinding member 103 includes a grinding mounting plate 108 and a grinding disc 109. The grinding mounting plate 108 is arranged above the protective housing 30 and is in clearance fit with the protective housing 30. The lower end of the grinding mounting plate 108 extends into the mounting cavity 300 and is fixedly connected to the top of the second mounting plate 101. The grinding disc 109 is arranged on the grinding mounting plate 108 and is detachably connected to the grinding mounting plate 108.

[0057] Among them, the grinding mounting plate 108 is provided with a fixing groove 110. The grinding disc 109 is arranged in the fixing groove 110 and is detachably connected to the grinding mounting plate 108 through bolts.

[0058] The top of the grinding disc 109 is a rough surface, and a grinding wheel that can achieve the functions of the present utility model in the prior art can be used.

[0059] As Figure 8 shown, in order to facilitate heat dissipation, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the bottom of the grinding mounting plate 108 is provided with a mating groove 111 that is arranged in cooperation with the top of the protective housing 30. A third air flow channel 112 for air flow is provided between the mating groove 111 and the protective housing 30.

[0060] During heat dissipation, the outside air can exchange with the air in the protective housing 30 through the cooperation among the heat dissipation port 302, the air flow channel 202, the first air flow channel 304, the second air flow channel 107 and the third air flow channel 112. During the exchange process, the outside air can cool the electromagnetic coil 104, so as to facilitate the heat dissipation of the electromagnetic coil 104.

[0061] The present utility model is applicable to the grinding of optical lenses, mainly used for grinding the burrs and rounded corners on the outer side of the optical lenses, and is usually applied to the scenarios of laboratories or grinding a small number of optical lenses.

[0062] The working principle of the present utility model:

[0063] By arranging the heat dissipation component 20 in cooperation with the electromagnetic grinding component 10, when the electromagnetic grinding component 10 works, the heat dissipation component 20 can cool the electromagnetic grinding component 10, so that the electromagnetic grinding component 10 can heat up more slowly, thereby prolonging the single grinding duration of the electromagnetic grinding component 10. At the same time, when the electromagnetic grinding component 10 is powered off for protection, the heat dissipation component 20 can cool the electromagnetic grinding component 10, so that its temperature can drop faster, thereby shortening the cooling duration of the electromagnetic grinding component 10. Compared with the traditional electromagnetic polishing machine, the present utility model has a faster cooling speed and a longer single grinding duration.

[0064] The above-described embodiments merely represent the specific implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model.

Claims

1. An electromagnetic conversion mechanism for optical grinding, characterized in that Comprising: An electromagnetic grinding assembly (10) for grinding optical lenses; A heat dissipation assembly (20) for dissipating heat from the electromagnetic grinding assembly (10); A protective housing (30) for mounting the electromagnetic grinding assembly (10) and the heat dissipation assembly (20); An installation cavity (300) is provided inside the protective housing (30), and an installation port (301) communicating with the installation cavity (300) is provided at the top of the protective housing (30). The electromagnetic grinding assembly (10) is arranged above the protective housing (30), and one end extends through the installation port (301) into the installation cavity (300) and is detachably connected to the installation cavity (300). A heat dissipation port (302) is provided at the bottom of the protective housing (30) and is arranged in cooperation with the heat dissipation assembly (20). The heat dissipation assembly (20) is arranged in the installation cavity (300) and is arranged in cooperation with the heat dissipation port (302). The heat dissipation assembly (20) is located below the electromagnetic grinding assembly (10).

2. The electromagnetic conversion mechanism for optical grinding according to claim 1, wherein The heat dissipation assembly (20) includes an installation table (200) and a heat dissipation fan (201). The installation table (200) is fixedly arranged at the inner bottom of the installation cavity (300). An air flow channel (202) communicating with the heat dissipation port (302) is provided on the installation table (200). The air flow channel (202) penetrates through the installation table (200). The heat dissipation fan (201) is detachably connected to the installation table (200) and is arranged in cooperation with the air flow channel (202).

3. The electromagnetic conversion mechanism for optical grinding according to claim 2, characterized in that, The heat dissipation fan (201) includes an installation housing (203), a cross-shaped mounting frame (204), a driving motor (205), and heat dissipation fan blades (206). The cross-shaped mounting frame (204) is arranged on the installation housing (203). A fixing ring (207) is provided in the middle of the cross-shaped mounting frame (204). The driving motor (205) is fixedly arranged inside the fixing ring (207). The heat dissipation fan blades (206) are fixedly arranged on the output shaft of the driving motor (205). The installation housing (203) is detachably connected to the installation table (200).

4. The electromagnetic conversion mechanism for optical grinding according to claim 3, characterized in that, An installation ring (208) is provided at the top of the installation table (200). A mating ring (209) is provided on the installation housing (203) and is arranged in cooperation with the installation ring (208). The installation ring (208) and the mating ring (209) are detachably connected by bolts.

5. An electromagnetic conversion mechanism for optical grinding according to claim 2 or 4, characterized in that, A dust separation plate (303) is provided at the bottom of the protective housing (30). The dust separation plate (303) is arranged in cooperation with the heat dissipation port (302) and is detachably connected to the protective housing (30) by bolts. A number of first air flow grooves (304) for air flow are provided on the dust separation plate (303).

6. The electromagnetic conversion mechanism for optical grinding according to claim 5, characterized in that A limiting ring (305) is provided at the upper end inside the installation cavity (300). The limiting ring (305) is fixedly connected to the inner side wall of the installation cavity (300). The electromagnetic grinding assembly (10) is detachably connected to the limiting ring (305).

7. An electromagnetic conversion mechanism for optical grinding according to claim 6, characterized in that, The electromagnetic grinding assembly (10) includes a first mounting disk (100), a second mounting disk (101), a connecting rotating shaft (102), a grinding member (103), a plurality of electromagnetic coils (104) and a plurality of magnetic bodies (105). The first mounting disk (100) is arranged on the limiting ring (305) and is detachably connected to the limiting ring (305) by bolts. The second mounting disk (101) is located above the first mounting disk (100). The connecting rotating shaft (102) is arranged between the second mounting disk (101) and the first mounting disk (100). One end of the connecting rotating shaft (102) is rotatably connected to the middle of the first mounting disk (100), and the other end is fixedly connected to the middle of the second mounting disk (101). An installation groove (106) is provided at the top of the first mounting disk (100). The plurality of electromagnetic coils (104) are arranged in the installation groove (106) and are arranged around the connecting rotating shaft (102). The plurality of magnetic bodies (105) are arranged at the bottom of the second mounting disk (101) and are arranged around the connecting rotating shaft (102). The grinding member (103) is arranged above the protection housing (30) and is in clearance fit with the protection housing (30). One end of the grinding member (103) extends into the installation cavity (300) and is fixedly connected to the top of the second mounting disk (101). Second air circulation grooves (107) for air flow are respectively provided on the first mounting disk (100) and the second mounting disk (101).

8. An electromagnetic conversion mechanism for optical grinding according to claim 7, characterized in that, The grinding member (103) includes a grinding mounting disk (108) and a grinding disk (109). The grinding mounting disk (108) is arranged above the protection housing (30) and is in clearance fit with the protection housing (30). The lower end of the grinding mounting disk (108) extends into the installation cavity (300) and is fixedly connected to the top of the second mounting disk (101). The grinding disk (109) is arranged on the grinding mounting disk (108) and is detachably connected to the grinding mounting disk (108).

9. The electromagnetic conversion mechanism for optical grinding according to claim 8, characterized in that, A fixing groove (110) is provided on the grinding mounting disk (108). The grinding disk (109) is arranged in the fixing groove (110) and is detachably connected to the grinding mounting disk (108) by bolts.

10. The electromagnetic conversion mechanism for optical grinding according to claim 9, characterized in that, A matching groove (111) that is matched with the top of the protection housing (30) is provided at the bottom of the grinding mounting disk (108). A third air circulation groove (112) for air flow is provided between the matching groove (111) and the protection housing (30).

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