Magnetorheological polishing equipment with adjustable magnetic field intensity and method thereof

Abstract

The invention relates to the technical field of magneto-rheological polishing, and discloses magneto-rheological polishing equipment with adjustable magnetic field intensity and a method thereof.The magneto-rheological polishing equipment comprises a polishing workbench, a plurality of mounting rings are distributed on the inner wall of a first mounting groove from top to bottom, a plurality of magnetic sheets are fixedly arranged on the inner wall of each mounting ring at equal intervals, and a gear ring is fixedly arranged on the outer wall of a chuck; the container is extruded through the limiting mechanism, so that the container compresses the supporting assembly and then ascends and descends in the first mounting groove, the number of the mounting rings wrapping the outer portion of the container is increased, and then the number of the magnetic sheets wrapping the outer portion of the container and conducting magnetic flow induction with the magnetic needles in the container is increased; the magnetic field intensity in the magneto-rheological polishing process is properly adjusted, the magnetic field intensity of the magneto-rheological polishing equipment is adjusted by changing the number of the magnetic sheets wrapping the container, the polishing quality of workpieces made of different materials is improved, and the manufacturing cost of the polishing equipment is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of magnetorheological finishing, and particularly relates to a magnetorheological finishing device with adjustable magnetic field intensity and a method thereof. BACKGROUND

[0002] As a front-line optical processing method that relies on the precise regulation of the rheological properties of magnetorheological fluid by magnetic field to achieve precision machining, magnetorheological finishing technology represents the development direction of the new generation of optical processing. Its core principle lies in the ingenious use of the unique characteristics of magnetorheological fluid forming a plastic Bingham fluid in a gradient magnetic field environment, and the use of shear force to achieve high-precision material removal, ultimately achieving a sub-nanometer surface roughness processing effect. Under the powerful action of the magnetic field, the magnetorheological fluid will form a flexible polishing mold with a directional chain structure, which provides a reliable and efficient solution for the machining of high-precision optical elements in many key fields such as aerospace communication and semiconductor devices.

[0003] With the rapid development of modern technology, the demand for polishing and grinding of various high-end high-precision parts is increasing, and magnetorheological finishing equipment has become the preferred tool for such operations due to its excellent machining performance. Therefore, the function and structure of the magnetorheological finishing equipment are continuously optimized and upgraded to better adapt to the production and machining needs of high-precision instruments.

[0004] However, the existing magnetorheological finishing equipment still has the following disadvantages in use: 1. In the process of high-speed rotation by magnetic field induction principle, the existing magnetorheological finishing equipment faces different parts in polishing due to different materials, and the impact strength of the equipment that can withstand the impact of the magnetic field is different. The impact strength of the magnetorheological finishing equipment is mostly determined by the magnetic field strength on the equipment. Ordinary magnetorheological finishing equipment does not have the function of adjusting the magnetic field strength, or it needs to use more complicated parts to achieve the adjustment of the magnetic field strength, which reduces the polishing quality of the existing magnetorheological finishing equipment, and the processing cost of the polishing equipment using more combined parts is also greatly increased. 2. The existing magnetorheological finishing equipment has obvious deficiencies in positioning and fixing the container containing the parts to be polished. The equipment cannot provide stable and precise positioning and fixing function for the container, which makes the workers need to perform a series of complicated positioning and fixing operations before each polishing operation. More troublesome is that the container must be accurately placed at the center of the magnetic field to ensure the polishing effect. This series of complex operation steps not only consumes a lot of time, but also greatly reduces the polishing efficiency of the equipment, which is difficult to meet the urgent needs of modern production for efficient and precise machining.

[0005] Therefore, it is necessary to provide a magnetic field strength adjustable magnetorheological polishing device and method thereof to solve the above problems. SUMMARY

[0006] To solve the above problems, the application provides a magnetic field strength adjustable magnetorheological polishing device and method thereof.

[0007] To achieve the above object, the application provides the following technical scheme: a magnetic field strength adjustable magnetorheological polishing device and method thereof, comprising a polishing workbench, characterized in that: one side of the top of the polishing workbench is provided with a machining groove, and the top of the polishing workbench is respectively provided with a hierarchical magnetorheological induction mechanism, a supporting assembly and a limiting mechanism. The hierarchical magnetorheological induction mechanism comprises a first installation groove provided in the inner wall bottom of the machining groove, an annular clamping groove provided at the edge of the inner wall bottom of the first installation groove, a second installation groove provided at one end of the inner wall of the polishing workbench, and the inner wall of the second installation groove is in communication with the inner wall of the annular clamping groove, a plurality of installation rings are distributed from top to bottom on the inner wall of the first installation groove, a plurality of connecting blocks are fixedly arranged at equal distances between each installation ring, a plurality of magnetic sheets are fixedly arranged at equal distances on the inner wall of each installation ring, one of the magnetic sheets is fixedly arranged at the bottom of the bottommost installation ring, and the magnetic sheet is rotatably connected to the inside of the annular clamping groove, a gear ring is fixedly arranged on the outer wall of the magnetic sheet, a gear is rotatably connected to the inner wall of the second installation groove, and the outer wall of the gear is in meshing connection with the outer wall of the gear ring, a third installation groove is provided above the second installation groove of the inner wall of the polishing workbench, a motor is installed on the inner wall of the third installation groove, one end of the gear is fixedly connected to the output end of the motor, a connecting hole is provided at the middle position of the top of the chuck and the middle position of the inner wall bottom of the first installation groove, and the two connecting holes are in communication with each other. Preferably, the supporting assembly comprises a supporting shaft penetrating through the inner walls of the two connecting holes, a supporting disc is fixedly arranged at the top of the supporting shaft, and three limiting shafts are penetratingly connected at equal distances on the inner wall of the supporting disc.

[0008] Preferably, one end of each of the three limiting shafts is fixedly provided with a hemispherical buckle, a first spring is sleeved on the outer wall of one end of each of the three limiting shafts, and the two ends of each of the three first springs are fixedly connected with one side of the hemispherical buckle and the inner wall of the supporting disc, respectively, a second spring is sleeved on the outer wall of the supporting shaft, and the two ends of the second spring are fixedly connected with the bottom of the first installation groove and the bottom of the supporting disc, respectively.

[0009] Preferably, a limiting sliding groove is provided at the middle position of one side of the inner wall of the machining groove, and an electric push rod is fixedly installed at the bottom of the inner wall of the limiting sliding groove.

[0010] Preferably, the limiting mechanism comprises a lifting slider slidingly connected in the inner wall of the limiting sliding groove, a groove is formed in the top of the lifting slider, and a connecting strip is rotatably connected to the inner wall of the groove.

[0011] Preferably, one end of the connecting strip is fixedly provided with an extrusion disc, both sides of the one end of the connecting strip are provided with clamping holes, both sides of the inner wall of the groove are provided with telescopic grooves, and the inner walls of the two telescopic grooves are both plugged with trapezoidal clamping blocks.

[0012] Preferably, both ends of one side of the two trapezoidal clamping blocks are fixedly provided with fixed shafts, the outer walls of one end of the four fixed shafts are respectively plugged with the outer walls of both sides of the lifting slider, two connecting plates are fixedly arranged at one end of the four fixed shafts, the outer walls of one end of the four fixed shafts are all sleeved with third springs, and both ends of the four third springs are respectively fixedly connected with one side of the two trapezoidal clamping blocks and one side of the inner walls of the two telescopic grooves.

[0013] Preferably, a control panel is fixedly installed on one side of the polishing workbench, and the motor and the electric push rod are both electrically connected with the external power supply through the control panel.

[0014] The technical effects and advantages of the present application are as follows: 1. The present application sets a hierarchical magnetorheological induction mechanism, and the limiting mechanism extrudes the container to compress the supporting assembly and then lifts and lowers in the first mounting groove. During the lifting and lowering process, the number of mounting rings wrapped outside the container increases, and the number of magnetic sheets wrapped outside the container and magnetically inducting with the magnetic needle also increases, so as to properly adjust the magnetic field strength in the magnetorheological polishing process. This design adjusts the magnetic field strength of the magnetorheological polishing equipment by changing the number of magnetic sheets wrapped outside the container, which is simple in structure and convenient to operate, improves the polishing quality of workpieces made of different materials, and reduces the manufacturing cost of the polishing equipment. 2. The present application sets a supporting assembly and a limiting mechanism. When the hemispherical buckle at the upper end of the supporting assembly and the limiting shaft are clamped into the supporting disc, the first spring is compressed to fix the container in the center. Then, the extrusion disc on the limiting mechanism extrudes and fixes the top of the container. Then, the lifting slider slides and lifts in the limiting sliding groove through the electric push rod, extrudes the supporting disc, compresses the second spring, changes the supporting height of the supporting disc to the container, changes the depth of the container in the first mounting groove, changes the wrapping number of the mounting ring and the magnetic sheet, and then changes the magnetic field strength. In this process, the design structure is simple, the operation steps are reduced, and the polishing efficiency of the polishing equipment is improved.

[0015] Additional features and advantages of the present application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The objectives and other advantages of the present application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0017] Figure 1 is a schematic diagram of the whole application; Figure 2 is a schematic diagram of the polishing workbench cross section; Figure 3 is a schematic diagram of the polishing workbench internal; Figure 4 is a schematic diagram of the mounting ring and the tooth ring connection; Figure 5 is a schematic diagram of the tooth ring and the gear meshing; Figure 6 is a schematic diagram of the support assembly; Figure 7 is a schematic diagram of the limiting mechanism; Figure 8 is a schematic diagram of the enlarged view of A in the specification of the present application; Figure 7

[0018] In the figure: 1, polishing workbench; 2, processing groove; 3, hierarchical magnetorheological induction mechanism; 301, first mounting groove; 302, annular clamping groove; 303, second mounting groove; 304, mounting ring; 305, connecting block; 306, magnetic sheet; 307, chuck; 308, tooth ring; 309, gear; 310, third mounting groove; 311, motor; 312, connecting hole; 4, support assembly; 401, support shaft; 402, support disc; 403, limiting shaft; 404, semispherical buckle; 405, first spring; 406, second spring; 5, limiting sliding groove; 6, electric push rod; 7, limiting mechanism; 701, lifting sliding block; 702, groove; 703, connecting strip; 704, extrusion disc; 705, clamping hole; 706, telescopic groove; 707, trapezoidal clamping block; 708, fixed shaft; 709, connecting plate; 710, third spring. DETAILED DESCRIPTION

[0019] ​In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0020] The present application provides a magnetorheological polishing device with adjustable magnetic field strength and a method thereof, as shown in the drawings. Figures 1-8 The present application provides a magnetorheological polishing device with adjustable magnetic field strength and a method thereof, as shown in the drawings. The hierarchical magnetorheological induction mechanism 3 comprises a first installation groove 301 opened in the inner wall bottom of the processing groove 2, an annular clamping groove 302 opened at the edge of the inner wall bottom of the first installation groove 301, a second installation groove 303 opened at one end of the inner wall of the polishing workbench 1, and the inner wall of the second installation groove 303 is in communication with the inner wall of the annular clamping groove 302, a plurality of installation rings 304 are distributed on the inner wall of the first installation groove 301 from top to bottom, a plurality of connecting blocks 305 are fixedly arranged at equal distances between each installation ring 304, a plurality of magnetic sheets 306 are fixedly arranged at equal distances on the inner wall of each installation ring 304, one of which is fixedly arranged at the bottom of the bottommost installation ring 304, a chuck 307 is rotatably connected to the inside of the annular clamping groove 302, a gear ring 308 is fixedly arranged on the outer wall of the chuck 307, a gear 309 is rotatably connected to the inner wall of the second installation groove 303, and the outer wall of the gear 309 is engaged with the outer wall of the gear ring 308, a third installation groove 310 is opened above the second installation groove 303 on the inner wall of the polishing workbench 1, a motor 311 is installed on the inner wall of the third installation groove 310, one end of the gear 309 is fixedly connected with the output end of the motor 311, a connecting hole 312 is opened at the middle position of the top of the chuck 307 and the middle position of the inner wall bottom of the first installation groove 301, and the two connecting holes 312 are in communication with each other. In use, the container with the magnetic needle and the protective liquid or cooling water is centrally positioned and supported by the support assembly 4, then the top is extruded by the limiting mechanism 7, and the container is extruded by the limiting mechanism 7 to compress the support assembly 4 and then ascend and descend in the first mounting groove 301. During the ascending and descending process, the mounting ring 304 with the magnetic sheet 306 is wrapped around the outer edge of the container. At this time, the motor 311 in the third mounting groove 310 is started to drive the gear 309 to rotate, thereby engaging the tooth ring 308 to rotate in the annular clamping groove 302, thereby rotating the chuck 307 and the mounting ring 304 connected by the plurality of connecting blocks 305 above. During the rotation process, the plurality of magnetic sheets 306 wrapped on one side of the mounting ring 304 at the bottom of the container continuously perform magnetic induction cutting around the container, thereby driving the magnetic needle in the container to rotate at high speed. During the high-speed rotation process, the workpiece is impacted to polish it. As the container continuously descends with the support assembly 4 in the first mounting groove 301 through the limiting mechanism 7, the number of mounting rings 304 wrapped outside the container increases, and the number of magnetic sheets 306 wrapped outside the container and magnetically inducting with the magnetic needle also increases, thereby properly adjusting the magnetic field strength in the magnetic rheological polishing process. The design adjusts the magnetic field strength of the magnetic rheological polishing equipment by changing the number of magnetic sheets 306 wrapped outside the container, which is simple in structure and convenient to operate. It not only improves the polishing quality of workpieces made of different materials, but also reduces the manufacturing cost of the polishing equipment. Further, the support assembly 4 includes a support shaft 401 passing through the connecting holes 312 in the inner wall of the two connecting holes 312. The top of the support shaft 401 is fixedly provided with a support disc 402. The inner wall of the support disc 402 is connected with three limiting shafts 403 at equal distances, and the top edge of the support disc 402 is protruding, facilitating the extension and retraction of the limiting shafts 403 on the side surface.

[0021] One end of the three limiting shafts 403 is fixedly provided with a hemispherical buckle 404, the outer wall of one end of the three limiting shafts 403 is sleeved with a first spring 405, and the two ends of the three first springs 405 are respectively fixedly connected with one side of the three hemispherical buckles 404 and the inner wall of the supporting disc 402. The outer wall of the supporting shaft 401 is sleeved with a second spring 406, and the two ends of the second spring 406 are respectively fixedly connected with the bottom of the first mounting groove 301 and the bottom of the supporting disc 402. When the container is clamped on the supporting disc 402, the outer wall of the container bottom will extrude the three hemispherical buckles 404 on the top of the supporting disc 402, so that they are extruded and compress the first spring 405 together through the limiting shaft 403, and then the outer edge of the container is telescopic, the outer wall of the container bottom is extruded, and then the container is extruded supporting disc 402 and telescopic in the connecting hole 312 through the supporting shaft 401 to extrude the second spring 406, so as to change the supporting height of the supporting assembly 4, so that the depth of the container placed in the first mounting groove 301 is changed, and finally the number of wrapping installation rings 304 is changed, and the magnetic field strength is changed. Further, a limiting sliding groove 5 is formed at the middle position of one side of the inner wall of the processing groove 2, and an electric push rod 6 is fixedly installed at the bottom of the inner wall of the limiting sliding groove 5. Further, the limiting mechanism 7 includes a lifting sliding block 701 slidingly connected in the inner wall of the limiting sliding groove 5, a recess 702 is formed in the top of the lifting sliding block 701, a connecting strip 703 is rotatably connected to the inner wall of the recess 702, and when the connecting strip 703 is rotated to the horizontal position, the center position of the extrusion disc 704 at one end thereof is on the same axis as the center positions of the first mounting groove 301 and the container.

[0022] One end of the connecting strip 703 is fixedly provided with an extrusion disc 704, both sides of one end of the connecting strip 703 are provided with clamping holes 705, both sides of the inner wall of the recess 702 are provided with telescopic grooves 706, and the inner walls of the two telescopic grooves 706 are respectively connected with trapezoidal clamping blocks 707. The clamping blocks are arranged in trapezoidal shape, so that when the two sides of the connecting strip 703 extrude the two trapezoidal clamping blocks 707, they are convenient to be extruded in the telescopic grooves 706.

[0023] The outer wall of one end of the four fixed shafts 708 is respectively insertedly connected with the outer wall of two sides of the lifting sliding block 701, two connecting plates 709 are fixedly arranged at one end of the four fixed shafts 708, the outer wall of one end of the four fixed shafts 708 is sleeved with a third spring 710, and the two ends of the four third springs 710 are respectively fixedly connected with one side of the two trapezoidal clamping blocks 707 and one side of the inner wall of the telescopic groove 706. When the container is positioned and extruded, then the connecting strip 703 at the upper end of the limiting mechanism 7 is rotated in the groove 702 on the lifting sliding block 701, so that one end of the extrusion disc 704 is extruded on the top of the container. At this time, the two sides of the connecting strip 703 extrude the trapezoidal clamping block 707, the trapezoidal clamping block 707 and the fixed shaft 708 compress the third spring 710, and then the telescopic groove 706 telescopes in the telescopic groove 706. Finally, the connecting strip 703 is clamped into the clamping hole 705 on both sides of the connecting strip 703, so as to fix the connecting strip 703. In the later contact fixing, the connecting plate 709 on both sides is pulled to make the trapezoidal clamping block 707 separate from the clamping hole 705, so as to release the fixing of the connecting strip 703. The pressure drop of the container is cooperated with the limiting mechanism 7, and the center extrusion of the container is cooperated with the three hemispherical buckles 404 on the top of the supporting assembly 4, so that the container can be quickly positioned in the magnetorheological polishing process, without complicated operation, and the polishing efficiency of the polishing equipment is improved.

[0024] Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones. The modifications or replacements do not change the essence of the corresponding technical solutions, and do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A magnetorheological polishing device with adjustable magnetic field strength, comprising a polishing worktable (1), characterized in that: A processing groove (2) is provided on one side of the top of the polishing workbench (1). The top of the polishing workbench (1) is respectively equipped with a graded magnetorheological induction mechanism (3), a support component (4) and a limiting mechanism (7). The graded magnetorheological induction mechanism (3) includes a first mounting groove (301) at the bottom of the inner wall of the processing groove (2). An annular groove (302) is provided at the edge of the bottom of the inner wall of the first mounting groove (301). A second mounting groove (303) is provided at one end of the inner wall of the polishing worktable (1). The inner wall of the second mounting groove (303) is connected to the inner wall of the annular groove (302). Multiple mounting rings (304) are distributed from top to bottom on the inner wall of the first mounting groove (301). Multiple connecting blocks (305) are fixed at equal distances between each mounting ring (304). Multiple magnetic sheets (306) are fixed at equal distances on the inner wall of each mounting ring (304). A chuck (307) is fixed at the bottom of one of the mounting rings (304) located at the bottom. The chuck (307) is rotatably connected to the inside of the annular groove (302). A toothed ring (308) is fixedly provided on the outer wall of the chuck (307). A gear (309) is rotatably connected to the inner wall of the second mounting groove (303). The outer wall of the gear (309) meshes with the outer wall of the toothed ring (308). A third mounting groove (310) is provided on the inner wall of the polishing worktable (1) above the second mounting groove (303). A motor (311) is installed on the inner wall of the third mounting groove (310). One end of the gear (309) is fixedly connected to the output end of the motor (311). A connecting hole (312) is provided at the middle position of the top of the chuck (307) and at the middle position of the bottom of the inner wall of the first mounting groove (301). The two connecting holes (312) are interconnected.

2. The magnetorheological polishing device with adjustable magnetic field strength according to claim 1, characterized in that: The support assembly (4) includes a support shaft (401) that passes through the inner walls of two connecting holes (312). A support plate (402) is fixedly provided on the top of the support shaft (401). Three limiting shafts (403) are interspersed at equal intervals on the inner wall of the support plate (402).

3. The magnetorheological polishing device with adjustable magnetic field strength according to claim 2, characterized in that: One end of each of the three limiting shafts (403) is fixedly provided with a hemispherical buckle (404), and the outer wall of one end of each of the three limiting shafts (403) is fitted with a first spring (405). The two ends of the three first springs (405) are respectively fixedly connected to one side of the three hemispherical buckles (404) and the inner wall of the support plate (402). The outer wall of the support shaft (401) is fitted with a second spring (406), and the two ends of the second spring (406) are respectively fixedly connected to the bottom of the first mounting groove (301) and the bottom of the support plate (402).

4. The magnetorheological polishing device with adjustable magnetic field strength according to claim 1, characterized in that: A limiting groove (5) is provided at the middle position of one side of the inner wall of the processing groove (2), and an electric push rod (6) is fixedly installed at the bottom of the inner wall of the limiting groove (5).

5. A magnetorheological polishing device with adjustable magnetic field strength according to claim 1, characterized in that: The limiting mechanism (7) includes a lifting slider (701) that is slidably connected to the inner wall of the limiting groove (5). The top of the lifting slider (701) is provided with a groove (702), and the inner wall of the groove (702) is rotatably connected with a connecting strip (703).

6. A magnetorheological polishing device with adjustable magnetic field strength according to claim 5, characterized in that: One end of the connecting strip (703) is fixedly provided with an extrusion plate (704), and both sides of one end of the connecting strip (703) are provided with card holes (705). Both sides of the inner wall of the groove (702) are provided with telescopic grooves (706), and the inner walls of the two telescopic grooves (706) are interlocked with trapezoidal card blocks (707).

7. A magnetorheological polishing device with adjustable magnetic field strength according to claim 6, characterized in that: Two fixed shafts (708) are fixed at both ends of one side of the two trapezoidal blocks (707), and the outer walls of one end of the four fixed shafts (708) are respectively inserted and connected to the outer walls of both sides of the lifting slider (701). Two connecting plates (709) are fixed at one end of the four fixed shafts (708), and a third spring (710) is sleeved on the outer wall of one end of the four fixed shafts (708). The two ends of the four third springs (710) are respectively fixedly connected to one side of the two trapezoidal blocks (707) and one side of the inner wall of the two telescopic grooves (706).

8. A magnetorheological polishing device with adjustable magnetic field strength according to claim 4, characterized in that: A control panel is fixedly installed on one side of the polishing worktable (1), and the motor (311) and the electric push rod (6) are electrically connected to an external power supply through the control panel.

9. The method of using a magnetorheological polishing device with adjustable magnetic field strength according to claim 1, characterized in that, The method is as follows: Step 1: First, inject protective liquid or cooling water into the container with magnetic needles, then place the workpiece to be polished into the container, place the container in the processing tank (2), fix it with the support component (4), then rotate the connecting strip (703) at the upper end of the limiting mechanism (7) on the lifting slider (701), so that the extrusion plate (704) at one end of it is pressed against the top of the container, and the third spring (710) is compressed by the trapezoidal card block (707) and the fixed shaft (708) and then extends and retracts in the telescopic groove (706), and finally gets into the card holes (705) on both sides of the connecting strip (703) to fix the connecting strip (703); Step 2, then, with the support component (4), the upper and lower ends of the container are fixed and limited. When the container is inserted into the support plate (402), the outer wall of the bottom of the container will press the three hemispherical buckles (404) on the top of the support plate (402). After being compressed, the first spring (405) is compressed together through the limiting shaft (403), and then it stretches and extends at the outer edge of the container, pressing the outer wall of the bottom of the container to fix it in the center. Step 3: At this time, the bottom of the container is in the first mounting groove (301) and is wrapped by the mounting ring (304) above. Start the motor (311) in the third mounting groove (310) to drive the gear (309) to rotate, and then mesh with the gear ring (308) to rotate in the annular slot (302). This causes the chuck (307) and the multiple mounting rings (304) connected by multiple connecting blocks (305) above to rotate together. During the rotation, multiple magnetic sheets (306) wrapped around the mounting ring (304) at the bottom of the container continuously perform magnetic induction cutting around the container, thereby driving the magnetic needle inside the container to rotate at high speed. During the high-speed rotation, the workpiece inside is impacted and polished. Step four, finally, by continuously pressing down through the limiting mechanism (7), the container is continuously compressed on the support component (4) to descend, thereby increasing the number of mounting rings (304) wrapped around the outside of the container, and consequently increasing the number of magnetic sheets (306) wrapped around the outside of the container and inducing magnetofluidity with the magnetic needles inside, thus achieving appropriate adjustment of the magnetic field strength during the magnetorheological polishing process.

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