Electromagnet polishing wheel with long service life

Abstract

The invention provides a long-service-life electromagnet polishing wheel. The long-service-life electromagnet polishing wheel comprises a mounting plate, a magnetic mechanism, a magnetorheological fluid spraying mechanism, a magnetorheological fluid recycling mechanism, a polishing wheel body, a driving mechanism and a circulating cooling mechanism. The magnetic mechanism comprises a first magnetic arm, a second magnetic arm, a first magnetic pole, a second magnetic pole, an iron core and a coil. The magnetorheological fluid spraying mechanism is installed between the first magnetic arm and the second magnetic arm. The magnetorheological fluid recovery mechanism is installed between the first magnetic arm and the second magnetic arm. The polishing wheel is rotatably mounted between the first magnetic arm and the second magnetic arm. The driving mechanism is installed on the first magnetic arm or the second magnetic arm and used for driving the polishing wheel to rotate. The circulating cooling mechanism comprises a first circulating cooling assembly, a second circulating cooling assembly, a third circulating cooling assembly and a fourth circulating cooling assembly. According to the electromagnet polishing wheel with the long service life, all positions can be fully cooled, the heat dissipation effect is good, the machining stability is improved, and the service life of the polishing wheel is prolonged.

Description

Technical Field

[0001] This application relates to the field of magnetorheological polishing technology, and in particular to a long-life electromagnet polishing wheel. Background Technology

[0002] Magnetorheological polishing technology is a method of achieving ultra-precision machining by controlling the rheological properties of magnetorheological fluids with a magnetic field. This technology can achieve bidirectional reversible transformation from liquid to solid-like state in milliseconds, forming a flexible polishing film with microscopic leveling capabilities. The machining accuracy can reach the nanometer level and the surface roughness can reach the sub-nanometer level. It is mainly used in the processing of precision devices such as high-precision optical components, high-intensity optical components, and photomasks, and has significant advantages in the fields of national defense, military industry, and civilian optoelectronics.

[0003] The rheological properties of magnetorheological fluids can be controlled by adjusting the strength of an external magnetic field. Currently, electromagnets are typically used to apply the magnetic field, and the strength of the field is controlled by adjusting the current flowing through the coil. However, electromagnets generate a lot of heat during prolonged operation or when a large current flows through the coil, which affects their lifespan. Furthermore, when this heat is conducted to the workpiece, it causes microscopic deformation and uneven stress, leading to localized microscopic fluctuations and deteriorated processing quality. Summary of the Invention

[0004] The purpose of this application is to provide a long-life electromagnet polishing wheel to solve the technical problems in the prior art where electromagnet heating leads to shortened service life and deterioration of processing quality.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a long-life electromagnet polishing wheel, comprising: Mounting plate; A magnetic mechanism includes a first magnetic arm, a second magnetic arm, a first magnetic pole, a second magnetic pole, an iron core, and a coil. The first magnetic arm is mounted on one side of the mounting plate, and the second magnetic arm is mounted on the other side of the mounting plate. The first magnetic pole is mounted on the end of the first magnetic arm away from the mounting plate, and the second magnetic pole is mounted on the end of the second magnetic arm away from the mounting plate. The iron core is mounted between the first magnetic arm and the second magnetic arm, and the coil is wound around the outer periphery of the iron core. A magnetorheological fluid injection mechanism is installed between the first magnetic arm and the second magnetic arm; A magnetorheological fluid recovery mechanism is installed between the first magnetic arm and the second magnetic arm; A polishing wheel is rotatably mounted between the first magnetic arm and the second magnetic arm, and is located between the magnetorheological fluid injection mechanism and the magnetorheological fluid recovery mechanism; A drive mechanism is mounted on the first magnetic arm or the second magnetic arm and is used to drive the polishing wheel to rotate; A circulating cooling mechanism is provided, comprising a first circulating cooling component, a second circulating cooling component, a third circulating cooling component, and a fourth circulating cooling component. The first circulating cooling component is installed at one end of the iron core near the first magnetic arm, the second circulating cooling component is installed at one end of the iron core near the second magnetic arm, the third circulating cooling component is installed on the first magnetic arm and the second magnetic arm and cools the inside of the iron core, and the fourth circulating cooling component is sleeved on the outer periphery of the coil.

[0006] Optionally, the first circulating cooling assembly includes a first water tank, a first outlet head, and a first inlet head. The first water tank is sleeved on the outer periphery of the iron core and fits against the first magnetic arm. The first outlet head is installed in the first water tank and connects the first water tank to an external coolant circulation device. The first inlet head is installed in the first water tank and connects the first water tank to an external coolant circulation device.

[0007] Optionally, the second circulating cooling assembly includes a second water tank, a second outlet head, and a second inlet head. The second water tank is sleeved on the outer periphery of the iron core and fits against the second magnetic arm. The second outlet head is installed in the second water tank and connects the second water tank to an external coolant circulation device. The second inlet head is installed in the second water tank and connects the second water tank to the external coolant circulation device.

[0008] Optionally, the third circulating cooling assembly includes a first end cap, an outlet chamber, an inlet chamber, a second end cap, a connecting chamber, multiple outlet channels, multiple inlet channels, a third outlet head, and a third inlet head. The first end cap is installed on the first magnetic arm. The outlet chamber and the inlet chamber are both opened in the first end cap and are separated. The second end cap is installed on the second magnetic arm. The connecting chamber is opened in the second end cap. Multiple outlet channels are opened in the first magnetic arm, the iron core, and the second magnetic arm, and are connected between the outlet chamber and the connecting chamber. Multiple inlet channels are opened in the first magnetic arm, the iron core, and the second magnetic arm, and are connected between the inlet chamber and the connecting chamber. The third outlet head is installed on the first end cap and connects the outlet chamber to an external coolant circulation device. The third inlet head is installed on the first end cap and connects the inlet chamber to the external coolant circulation device.

[0009] Optionally, the fourth circulating cooling assembly includes a copper tube, a fourth outlet head, and a fourth inlet head. The copper tube is wound around the outer periphery of the coil. The fourth outlet head is installed at one end of the copper tube and connects the copper tube to an external coolant circulation device. The fourth inlet head is installed at the other end of the copper tube and connects the copper tube to the external coolant circulation device.

[0010] Optionally, the fourth circulating cooling assembly further includes multiple cooling elements, a fifth inlet head, and a fifth outlet head. The multiple cooling elements are installed between the first magnetic arm and the second magnetic arm, and are able to wrap the coil and are connected in sequence. The fifth inlet head and the fifth outlet head are respectively installed on two cooling elements at the beginning and end, and connect the multiple cooling elements to an external coolant circulation device.

[0011] Optionally, the cooling component includes a cooling plate, two sets of internal channels, an inlet, an outlet, a rotating block, an internal channel, a rotating plate, and a snap-fit ​​unit. The two sets of internal channels, the inlet, and the outlet are all located within the cooling plate and are separated. The rotating block is rotatably mounted within the cooling plate. The cooling component has a first communication state where the two sets of internal channels, the inlet, the outlet, and the internal channel are connected, and a second communication state where the inlet, the outlet, and the internal channel are connected. The rotating plate is mounted on the rotating block, and the snap-fit ​​unit is mounted on the outer periphery of the cooling plate and can be used to snap the rotating plate.

[0012] Optionally, the rotating plate has multiple snap-fit ​​slots; The snap-fit ​​unit includes a mounting base, multiple limiting rods, a snap-fit ​​block, and multiple elastic structures. The mounting base is installed on the outer periphery of the cooling plate. The multiple limiting rods pass through the mounting base. The snap-fit ​​block is installed at one end of the multiple limiting rods near the rotating plate. The multiple elastic structures are sleeved on the multiple limiting rods and abut against the mounting base and the snap-fit ​​block, and are arranged in a one-to-one correspondence with the multiple limiting rods.

[0013] Optionally, the mounting plate includes a plate body, a slide groove, and a slide block. The slide groove is formed in the plate body, and the slide block is installed in the slide groove and is capable of sliding along a first direction. The first magnetic arm has multiple waist-shaped holes; The drive mechanism includes an adjusting block, an intermediate shaft, a rotating shaft, a drive motor, a first driving wheel, a first driven wheel, a first synchronous belt, a second driving wheel, a second driven wheel, and a second synchronous belt. The adjusting block passes through the first magnetic arm and is configured to be fixed to the first magnetic arm through multiple oblong holes and multiple external bolts, and is movable relative to the first magnetic arm in a second direction. The intermediate shaft is rotatably mounted on the adjusting block. The rotating shaft passes through the polishing wheel and is engaged with the polishing wheel, and is rotatably mounted between the first magnetic arm and the second magnetic arm. The drive motor is mounted on the slide block. The first driving wheel is mounted on the output end of the drive motor. The first driven wheel is mounted on one end of the intermediate shaft. The first synchronous belt engages with the outer periphery of the first driving wheel and the first driven wheel. The second driving wheel is mounted on the end of the intermediate shaft away from the first driven wheel. The second driven wheel is mounted on the rotating shaft. The second synchronous belt engages with the outer periphery of the second driving wheel and the second driven wheel.

[0014] Optionally, the magnetorheological fluid jetting mechanism includes two first fixed seats, a first clamp, a jetting pipe, and a first magnetic shield. One of the first fixed seats is mounted on the first magnetic arm, and the other first fixed seat is mounted on the second magnetic arm. The first clamp is mounted between the two first fixed seats. The jetting pipe is mounted on the first clamp and is movable relative to the first clamp. The first magnetic shield is mounted on the jetting end of the jetting pipe. The magnetorheological fluid recovery mechanism includes two second fixed seats, a second clamp, a recovery tube, and a second magnetic shield. One of the second fixed seats is installed on the first magnetic arm, and the other second fixed seat is installed on the second magnetic arm. The second clamp is installed between the two second fixed seats. The recovery tube is installed on the second clamp and can move relative to the second clamp. The second magnetic shield is installed at the recovery end of the recovery tube. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A first-view perspective perspective view of a long-life electromagnet polishing wheel provided in Embodiment 1 of this application; Figure 2 A second-view perspective perspective view of a long-life electromagnet polishing wheel provided in Embodiment 1 of this application; Figure 3 An exploded view of a long-life electromagnet polishing wheel provided in Embodiment 1 of this application; Figure 4 A first-view sectional view of a long-life electromagnet polishing wheel provided in Embodiment 1 of this application; Figure 5 A second-view perspective perspective view of a long-life electromagnet polishing wheel provided in Embodiment 1 of this application; Figure 6 A perspective view of a magnetorheological fluid spraying mechanism, a magnetorheological fluid recovery mechanism, and a drive mechanism for a long-life electromagnet polishing wheel provided in Embodiment 1 of this application; Figure 7 A perspective view of the first end cap of a long-life electromagnet polishing wheel provided in Embodiment 1 of this application; Figure 8 A perspective view of the second end cap of a long-life electromagnet polishing wheel provided in Embodiment 1 of this application; Figure 9 A perspective view of a magnetorheological fluid jetting mechanism for a long-life electromagnet polishing wheel provided in Embodiment 1 of this application; Figure 10 A perspective view of a magnetorheological fluid recovery mechanism for a long-life electromagnet polishing wheel provided in Embodiment 1 of this application; Figure 11 A perspective view of the fourth circulating cooling assembly of a long-life electromagnet polishing wheel provided in Embodiment 2 of this application; Figure 12 A three-dimensional view of the cooling plate of a long-life electromagnet polishing wheel provided in Embodiment 2 of this application (first connected state); Figure 13 A perspective view of the interior of the cooling plate of a long-life electromagnet polishing wheel provided in Embodiment 2 of this application (second connected state); Figure 14 for Figure 11 A magnified view of a portion of point A in the middle.

[0017] The following are the labeling elements in the figure: 1. Mounting plate; 11. Plate body; 12. Slide groove; 13. Slide block; 2. Magnetic mechanism; 21. First magnetic arm; 22. Second magnetic arm; 23. First magnetic pole; 24. Second magnetic pole; 25. Iron core; 26. Coil; 27. Oval hole; 3. Magnetorheological fluid injection mechanism; 31. First fixed base; 32. First clamp; 33. Injection pipe; 34. First magnetic shield; 4. Magnetorheological fluid recovery mechanism; 41. Second fixed base; 42. Second clamp; 43. Recovery pipe; 44. Second magnetic shield; 5. Polishing wheel; 6. Drive mechanism; 601. Adjusting block; 602. Intermediate shaft; 603. Rotating shaft; 604. Drive motor; 605. First driving pulley; 606. First driven pulley; 607. First synchronous belt; 608. Second driving pulley; 609. Second driven pulley; 610. Second synchronous belt; 7. Circulating cooling mechanism; 71. First circulating cooling assembly; 711. First water tank; 712. First liquid outlet; 713. First liquid inlet; 72. Second circulating cooling assembly; 721. Second water tank; 722. Second liquid outlet; 723. Second liquid inlet; 73. Third circulating cooling assembly; 731. First end cap; 732. Liquid outlet chamber; 733. Liquid inlet chamber; 734. Second end cap; 735. Connecting chamber; 736. Liquid outlet channel; 737. Liquid inlet channel; 738. Third liquid outlet; 739. Third liquid inlet; 74. Four-circulation cooling assembly; 741, copper pipe; 742, fourth liquid outlet; 743, fourth liquid inlet; 744, cooling component; 7441, cooling plate; 7442, internal channel of the plate; 7443, liquid inlet; 7444, liquid outlet; 7445, rotating block; 7446, internal channel of the block; 7447, rotating plate; 7448, snap-fit ​​unit; 74481, mounting base; 74482, limit rod; 74483, snap-fit ​​block; 74484, elastic structure; 7449, snap-fit ​​groove; 745, fifth liquid inlet; 746, fifth liquid outlet. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "mounted to," "fixed to," or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] Example 1 like Figures 1 to 10 As shown, this application provides a long-life electromagnet polishing wheel 5, including a mounting plate 1, a magnetic mechanism 2, a magnetorheological fluid spraying mechanism 3, a magnetorheological fluid recovery mechanism 4, a polishing wheel 5, a driving mechanism 6, and a circulating cooling mechanism 7. The magnetic mechanism 2 includes a first magnetic arm 21, a second magnetic arm 22, a first magnetic pole 23, a second magnetic pole 24, an iron core 25, and a coil 26. The first magnetic arm 21 is mounted on one side of the mounting plate 1, and the second magnetic arm 22 is mounted on the other side of the mounting plate 1. The first magnetic pole 23 is mounted at the end of the first magnetic arm 21 away from the mounting plate 1, and the second magnetic pole 24 is mounted at the end of the second magnetic arm 22 away from the mounting plate 1. The iron core 25 is mounted between the first magnetic arm 21 and the second magnetic arm 22, and the coil 26 is wound around the outer periphery of the iron core 25. The magnetorheological fluid spraying mechanism 3 is mounted between the first magnetic arm 21 and the second magnetic arm 22. The magnetorheological fluid recovery mechanism 4 is mounted between the first magnetic arm 21 and the second magnetic arm 22. The polishing wheel 5 is rotatably mounted between the first magnetic arm 21 and the second magnetic arm 22, and located between the magnetorheological fluid spraying mechanism 3 and the magnetorheological fluid recovery mechanism 4. The drive mechanism 6 is mounted on the first magnetic arm 21 or the second magnetic arm 22 and is used to drive the polishing wheel 5 to rotate. The circulating cooling mechanism 7 includes a first circulating cooling assembly 71, a second circulating cooling assembly 72, a third circulating cooling assembly 73, and a fourth circulating cooling assembly 74. The first circulating cooling assembly 71 is mounted on the end of the iron core 25 near the first magnetic arm 21, the second circulating cooling assembly 72 is mounted on the end of the iron core 25 near the second magnetic arm 22, the third circulating cooling assembly 73 is mounted on the first magnetic arm 21 and the second magnetic arm 22 and cools the inside of the iron core 25, and the fourth circulating cooling assembly 74 is sleeved on the outer periphery of the coil 26.

[0023] This application provides a long-life electromagnet polishing wheel 5. Under the action of the first circulating cooling assembly 71, it can fit against the first magnetic arm 21 to cool the first magnetic arm 21, minimizing heat transfer to the polishing wheel 5 and workpiece via the first magnetic pole 23. Under the action of the second circulating cooling assembly 72, it can fit against the second magnetic arm 22 to cool the second magnetic arm 22, minimizing heat transfer to the polishing wheel 5 and workpiece via the second magnetic pole 24. Under the action of the third circulating cooling assembly 73, the first magnetic arm 21, the second magnetic arm 22, and the iron core 25 are cooled from the inside, minimizing overheating of the iron core 25. Under the action of the fourth circulating cooling assembly 74, the coil 26 is wrapped around it for cooling. In summary, under the action of the circulating cooling assembly, by adopting a parallel heat dissipation method, the iron core 25, coil 26, first magnetic arm 21, and second magnetic arm 22 are cooled individually. Compared with the series heat dissipation method, this method can fully cool each location, avoid the decrease in cooling performance of the coolant due to the increase in the flow path, ensure the flow rate and pressure of the coolant, and achieve good heat dissipation, effectively guaranteeing the processing quality. Under the action of coil 26 and iron core 25, the input current passes through the first magnetic arm 21, second magnetic arm 22, first magnetic pole 23, and second magnetic pole 24, forming a high-gradient magnetic field between the workpiece and polishing wheel 5. When the polishing wheel 5 rotates relative to the magnetorheological fluid spraying mechanism 3, the magnetorheological fluid spraying mechanism 3 can spray a magnetorheological fluid annular strip on the outer periphery of the polishing wheel 5. Under the action of the high-gradient magnetic field, the magnetorheological fluid condenses and hardens, and the workpiece is polished by the rotation of the polishing wheel 5.

[0024] In one embodiment of this application, please refer to Figures 1 to 10 The first circulating cooling assembly 71 includes a first water tank 711, a first outlet head 712, and a first inlet head 713. The first water tank 711 is sleeved on the outer periphery of the iron core 25 and attached to the first magnetic arm 21. The first outlet head 712 is installed on the first water tank 711 and connects the first water tank 711 to the external coolant circulation equipment. The first inlet head 713 is installed on the first water tank 711 and connects the first water tank 711 to the external coolant circulation equipment.

[0025] With this configuration, the first outlet head 712 is connected between the first water tank 711 and the external coolant circulation equipment, and the first inlet head 713 is connected between the first water tank 711 and the external coolant circulation equipment. Cooling water can flow continuously through the first water tank 711, keeping the cooling water in the first water tank 711 at a low temperature. It also ensures the flow rate and pressure of the cooling water in the first water tank 711, resulting in good heat dissipation for the first magnetic arm 21.

[0026] In one embodiment of this application, please refer to the following: Figures 1 to 10The second circulating cooling assembly 72 includes a second water tank 721, a second outlet head 722, and a second inlet head 723. The second water tank 721 is sleeved on the outer periphery of the iron core 25 and attached to the second magnetic arm 22. The second outlet head 722 is installed on the second water tank 721 and connects the second water tank 721 to the external coolant circulation equipment. The second inlet head 723 is installed on the second water tank 721 and connects the second water tank 721 to the external coolant circulation equipment.

[0027] With this configuration, the second outlet head 722 is connected between the second water tank 721 and the external coolant circulation equipment, and the second inlet head 723 is connected between the second water tank 721 and the external coolant circulation equipment. Cooling water can flow continuously through the second water tank 721, keeping the cooling water in the second water tank 721 at a low temperature. It also ensures the flow rate and pressure of the cooling water in the second water tank 721, resulting in good heat dissipation for the second magnetic arm 22.

[0028] In one embodiment of this application, see [reference] Figures 1 to 10 The third circulating cooling assembly 73 includes a first end cap 731, an outlet chamber 732, an inlet chamber 733, a second end cap 734, a connecting chamber 735, multiple outlet channels 736, multiple inlet channels 737, a third outlet head 738, and a third inlet head 739. The first end cap 731 is mounted on the first magnetic arm 21. The outlet chamber 732 and the inlet chamber 733 are both opened on the first end cap 731 and are separated. The second end cap 734 is mounted on the second magnetic arm 22. The connecting chamber 735 is opened on the second end cap 734. The multiple outlet channels 736, 737, and 738 are connected to the first magnetic arm 22. All 6 are located within the first magnetic arm 21, the iron core 25, and the second magnetic arm 22, and are connected between the liquid outlet chamber 732 and the connecting chamber 735. Multiple liquid inlet channels 737 are located within the first magnetic arm 21, the iron core 25, and the second magnetic arm 22, and are connected between the liquid inlet chamber 733 and the connecting chamber 735. The third liquid outlet head 738 is installed on the first end cover 731 and connects the liquid outlet chamber 732 to the external coolant circulation equipment. The third liquid inlet head 739 is installed on the first end cover 731 and connects the liquid inlet chamber 733 to the external coolant circulation equipment.

[0029] With this configuration, the coolant enters the outlet chamber 732 within the first end cover 731 through the third outlet head 738, and then enters the connecting chamber 735 within the second end cover 734 through multiple outlet channels 736. It then enters the inlet chamber 733 within the first end cover 731 through multiple inlet channels 737, and finally flows back to the external coolant circulation equipment through the third inlet head 739. The outlet chamber 732, inlet chamber 733, connecting chamber 735, multiple outlet channels 736, and multiple inlet channels 737 form a complete path, allowing the coolant to flow continuously through the interior of the first magnetic arm 21, the iron core 25, and the second magnetic arm 22. This keeps the coolant in the first magnetic arm 21, the iron core 25, and the second magnetic arm 22 at a consistently low temperature, while also ensuring the flow rate and pressure of the coolant, resulting in good heat dissipation for the first magnetic arm 21, the iron core 25, and the second magnetic arm 22.

[0030] In one embodiment of this application, please refer to Figures 1 to 10 The fourth circulating cooling assembly 74 includes a copper tube 741, a fourth outlet head 742, and a fourth inlet head 743. The copper tube 741 is wound around the outer periphery of the coil 26. The fourth outlet head 742 is installed at one end of the copper tube 741 and connects the copper tube 741 to an external coolant circulation device. The fourth inlet head 743 is installed at the other end of the copper tube 741 and connects the copper tube 741 to the external coolant circulation device.

[0031] With this configuration, the fourth liquid outlet 742 is connected between the copper pipe 741 and the external coolant circulation equipment, and the fourth liquid inlet 743 is connected between the copper pipe 741 and the external coolant circulation equipment. Cooling water can flow continuously through the copper pipe 741, keeping the cooling water in the copper pipe 741 at a low temperature. It also ensures the flow rate and pressure of the cooling water in the second water tank 721, resulting in good heat dissipation for the coil 26.

[0032] In one embodiment of this application, please refer to the following: Figures 1 to 10The mounting plate 1 includes a plate body 11, a slide groove 12, and a slide block 13. The slide groove 12 is formed in the plate body 11, and the slide block 13 is installed in the slide groove 12 and can slide along a first direction. The first magnetic arm 21 has multiple oblong holes 27. The drive mechanism 6 includes an adjusting block 601, an intermediate shaft 602, a rotating shaft 603, a drive motor 604, a first driving wheel 605, a first driven wheel 606, a first synchronous belt 607, a second driving wheel 608, a second driven wheel 609, and a second synchronous belt 610. The adjusting block 601 passes through the first magnetic arm 21 and is configured to be fixed to the first magnetic arm 21 by multiple oblong holes 27 and multiple external bolts, and can move relative to the first magnetic arm 21 along a second direction. The intermediate shaft 602 is rotatably mounted on the adjusting block 601. The rotating shaft 603 passes through the polishing wheel 5 and is engaged with the polishing wheel 5. The drive motor 604 is mounted on the slide 13 and is rotatably mounted between the first magnetic arm 21 and the second magnetic arm 22. The first drive wheel 605 is mounted on the output end of the drive motor 604, and the first driven wheel 606 is mounted on one end of the intermediate shaft 602. The first synchronous belt 607 is engaged with the outer periphery of the first drive wheel 605 and the first driven wheel 606. The second drive wheel 608 is mounted on the end of the intermediate shaft 602 away from the first driven wheel 606, and the second driven wheel 609 is mounted on the rotating shaft 603. The second synchronous belt 610 is engaged with the outer periphery of the second drive wheel 608 and the second driven wheel 609.

[0033] It should be noted that the "first direction" above and below refers to the bidirectional direction of the shortest connection between the drive motor 604 and the first magnetic arm 21, specifically as follows: Figure 1 The X-axis is shown in the diagram. The second direction, above and below, refers to the bidirectional direction of the shortest line connecting the first driven wheel 606 and the mounting plate 1, specifically as shown in the diagram. Figure 1 The Y-axis is shown in the figure.

[0034] With this configuration, the slide block 13 can move within the slide groove 12 along the first direction, adjusting the position of the drive motor 604 in the first direction. This, in turn, allows adjustment of the position of the first drive wheel 605 in the first direction, tensioning the first synchronous belt 607 and ensuring that the power of the drive motor 604 is stably transmitted to the first driven wheel 606. The slide block 13 is fixed to the mounting plate 1 by external bolts, improving the structural stability between the drive motor 604 and the mounting plate 1 and preventing the drive motor 604 from shifting during operation. The adjusting block 601 can move relative to the first magnetic arm 21 along the second direction, adjusting the position of the intermediate shaft 602 in the second direction. This, in turn, allows adjustment of the position of the second drive wheel 608 in the second direction, tensioning the second synchronous belt 610 and ensuring that the power of the drive motor 604 is stably transmitted to the second driven wheel 609. In summary, during use, by first tensioning the second synchronous belt 610 and then the first synchronous belt 607, both the first and second synchronous belts 607 are kept taut, ensuring that the power from the drive motor 604 is stably transmitted to the polishing wheel 5. Furthermore, the combined action of the first driving pulley 605, the first driven pulley 606, the first synchronous belt 607, the second driving pulley 608, the second driven pulley 609, and the second synchronous belt 610 alters the motor's rotational speed, thereby enabling better workpiece processing and resulting in higher quality workpieces.

[0035] Optionally, drive motor 604 is configured as a motor.

[0036] In one embodiment of this application, see [reference] Figures 1 to 10 The magnetorheological fluid injection mechanism 3 includes two first fixed seats 31, a first clamp 32, an injection pipe 33, and a first magnetic shield 34. One first fixed seat 31 is installed on the first magnetic arm 21, and the other first fixed seat 31 is installed on the second magnetic arm 22. The first clamp 32 is installed between the two first fixed seats 31. The injection pipe 33 is installed on the first clamp 32 and can move relative to the first clamp 32. The first magnetic shield 34 is installed on the injection end of the injection pipe 33.

[0037] With this configuration, when the first clamp 32 is in a relaxed state, it can adjust the distance between the spray pipe 33 and the polishing wheel 5, thereby ensuring that the magnetorheological fluid is stably sprayed onto the surface of the polishing wheel 5, resulting in good spraying effect and wide applicability. When the first clamp 32 is in a tightened state, it can fix the spray pipe 33 between the two first fixing seats 31, preventing the spray pipe 33 from moving during spraying and affecting the spraying effect. Under the action of the first magnetic shield 34, the magnetic field can be shielded, preventing the magnetic field from affecting the spraying effect of the magnetorheological fluid.

[0038] In one embodiment of this application, please refer to Figures 1 to 10The magnetorheological fluid recovery mechanism 4 includes two second fixed seats 41, a second clamp 42, a recovery pipe 43, and a second magnetic shield 44. One second fixed seat 41 is installed on the first magnetic arm 21, and the other second fixed seat 41 is installed on the second magnetic arm 22. The second clamp 42 is installed between the two second fixed seats 41. The recovery pipe 43 is installed on the second clamp 42 and can move relative to the second clamp 42. The second magnetic shield 44 is installed at the recovery end of the recovery pipe 43.

[0039] With this configuration, when the second clamp 42 is in a relaxed state, the distance between the recovery tube 43 and the polishing wheel 5 can be adjusted, allowing the recovery tube 43 to better recover the magnetorheological fluid, resulting in good recovery performance and a wide range of applications. When the second clamp 42 is in a tightened state, it can fix the recovery tube 43 between the two second fixing seats 41, preventing the recovery tube 43 from moving during the recovery process and affecting the recovery effect. Under the action of the second magnetic shield 44, the magnetic field can be shielded, preventing the magnetic field from affecting the recovery effect of the magnetorheological fluid.

[0040] Example 2 This embodiment is basically the same as Embodiment 1, except that: Figures 1 to 14 As shown, the fourth circulating cooling assembly 74 also includes multiple cooling elements 744, a fifth liquid inlet head 745, and a fifth liquid outlet head 746. The multiple cooling elements 744 are all installed between the first magnetic arm 21 and the second magnetic arm 22, and can wrap the coil 26 and are connected in sequence. The fifth liquid inlet head 745 and the fifth liquid outlet head 746 are respectively installed on the two cooling elements 744 at the first and last ends, and connect the multiple cooling elements 744 to the external coolant circulation equipment. The multiple cooling elements 744 are all located between the fifth liquid inlet head 745 and the fifth liquid outlet head 746.

[0041] This configuration, with the fifth inlet head 745 and the fifth outlet head 746, connects multiple cooling components 744 to an external coolant circulation system. Coolant can flow continuously through these components, ensuring adequate flow rate and pressure for effective cooling of the coil 26. Furthermore, the multiple cooling components 744 are easy to disassemble and install, facilitating maintenance and improving usability.

[0042] In one embodiment of this application, please refer to Figures 1 to 14The cooling component 744 includes a cooling plate 7441, two sets of internal channels 7442, a liquid inlet 7443, a liquid outlet 7444, a rotating block 7445, an internal channel 7446, a rotating plate 7447, and a snap-fit ​​unit 7448. The two sets of internal channels 7442, the liquid inlet 7443, and the liquid outlet 7444 are all located within the cooling plate 7441 and are separated from each other. The rotating block 7445 is rotatably mounted within the cooling plate 7441. The cooling component 744 has a first connected state in which two sets of in-plate channels 7442, liquid inlet 7443, liquid outlet 7444 and in-block channels 7446 are connected, and also has a second connected state in which the liquid inlet 7443, liquid outlet 7444 and in-block channels 7446 are connected. The rotating plate 7447 is mounted on the rotating block 7445, and the snap-fit ​​unit 7448 is mounted on the outer periphery of the cooling plate 7441 and can be used to snap-fit ​​the rotating plate 7447.

[0043] With this configuration, in the first connected state, the two sets of internal channels 7442, inlet 7443, outlet 7444, and internal channel 7446 are sequentially connected, allowing coolant to flow sequentially through various locations within the cooling plate 7441, enabling the cooling plate 7441 to cool the coil 26 at the corresponding location. In the second connected state, the inlet 7443 and outlet 7444 are connected only through the internal channel 7446, allowing coolant to flow quickly through the cooling plate 7441. In summary, in practical applications, when the coil 26 experiences localized overheating, the rotating plate 7447 can switch the cooling element 744 in the unheated area to the second connected state, allowing coolant to flow quickly through the unheated area and rapidly reach the overheated area. The cooling element 744 in the overheated area is in the first connected state, ensuring sufficient cooling of the locally overheated area, resulting in better cooling performance. Under the action of the snap-fit ​​unit 7448, the rotating plate 7447 can be snapped in place, which can prevent the rotating block 7445 from rotating during the cooling process, so that the cooling component 744 can be stably maintained in the first connected state or the second connected state.

[0044] In one embodiment of this application, please refer to the following: Figures 1 to 11 The rotating plate 7447 has multiple snap-fit ​​slots 7449. The snap-fit ​​unit 7448 includes a mounting base 74481, multiple limiting rods 74482, a snap-fit ​​block 74483, and multiple elastic structures 74484. The mounting base 74481 is mounted on the outer periphery of the cooling plate 7441. The multiple limiting rods 74482 are all inserted through the mounting base 74481. The snap-fit ​​block 74483 is mounted on one end of the multiple limiting rods 74482 near the rotating plate 7447. The multiple elastic structures 74484 are sleeved on the multiple limiting rods 74482 and abut against the mounting base 74481 and the snap-fit ​​block 74483, and are arranged one-to-one with the multiple limiting rods 74482.

[0045] This configuration, with the action of multiple limiting rods 74482, guides the movement of the locking block 74483, improving its stability and ensuring it can stably engage within the locking groove 7449. It also allows the locking block 74483 to stably move out of the locking groove 7449. The locking block 74483 engages with the locking groove 7449, thus securing the rotating plate 7447. The elastic structure 74484 automatically pushes the locking block 74483 into the locking groove 7449 after the locking groove 7449 is aligned, achieving automatic engagement and improving ease of use.

[0046] Optionally, the elastic structure 74484 can be configured as a spring or a sheet.

[0047] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A long-life electromagnet polishing wheel, characterized in that, include: Mounting plate; A magnetic mechanism includes a first magnetic arm, a second magnetic arm, a first magnetic pole, a second magnetic pole, an iron core, and a coil. The first magnetic arm is mounted on one side of the mounting plate, and the second magnetic arm is mounted on the other side of the mounting plate. The first magnetic pole is mounted on the end of the first magnetic arm away from the mounting plate, and the second magnetic pole is mounted on the end of the second magnetic arm away from the mounting plate. The iron core is mounted between the first magnetic arm and the second magnetic arm, and the coil is wound around the outer periphery of the iron core. A magnetorheological fluid injection mechanism is installed between the first magnetic arm and the second magnetic arm; A magnetorheological fluid recovery mechanism is installed between the first magnetic arm and the second magnetic arm; A polishing wheel is rotatably mounted between the first magnetic arm and the second magnetic arm, and is located between the magnetorheological fluid injection mechanism and the magnetorheological fluid recovery mechanism; A drive mechanism is mounted on the first magnetic arm or the second magnetic arm and is used to drive the polishing wheel to rotate; A circulating cooling mechanism is provided, comprising a first circulating cooling component, a second circulating cooling component, a third circulating cooling component, and a fourth circulating cooling component. The first circulating cooling component is installed at one end of the iron core near the first magnetic arm, the second circulating cooling component is installed at one end of the iron core near the second magnetic arm, the third circulating cooling component is installed on the first magnetic arm and the second magnetic arm and cools the inside of the iron core, and the fourth circulating cooling component is sleeved on the outer periphery of the coil.

2. The long-life electromagnet polishing wheel as described in claim 1, characterized in that, The first circulating cooling assembly includes a first water tank, a first outlet head, and a first inlet head. The first water tank is sleeved on the outer periphery of the iron core and fits against the first magnetic arm. The first outlet head is installed in the first water tank and connects the first water tank to an external coolant circulation device. The first inlet head is installed in the first water tank and connects the first water tank to an external coolant circulation device.

3. The long-life electromagnet polishing wheel as described in claim 1, characterized in that, The second circulating cooling assembly includes a second water tank, a second outlet head, and a second inlet head. The second water tank is sleeved on the outer periphery of the iron core and fits against the second magnetic arm. The second outlet head is installed in the second water tank and connects the second water tank to an external coolant circulation device. The second inlet head is installed in the second water tank and connects the second water tank to the external coolant circulation device.

4. A long-life electromagnet polishing wheel as described in claim 1, characterized in that, The third circulating cooling assembly includes a first end cap, an outlet chamber, an inlet chamber, a second end cap, a connecting chamber, multiple outlet channels, multiple inlet channels, a third outlet head, and a third inlet head. The first end cap is installed on the first magnetic arm. The outlet chamber and the inlet chamber are both opened on the first end cap and are separated. The second end cap is installed on the second magnetic arm. The connecting chamber is opened on the second end cap. Multiple outlet channels are opened in the first magnetic arm, the iron core, and the second magnetic arm, and are connected between the outlet chamber and the connecting chamber. Multiple inlet channels are opened in the first magnetic arm, the iron core, and the second magnetic arm, and are connected between the inlet chamber and the connecting chamber. The third outlet head is installed on the first end cap and connects the outlet chamber to an external coolant circulation device. The third inlet head is installed on the first end cap and connects the inlet chamber to the external coolant circulation device.

5. A long-life electromagnet polishing wheel as described in claim 1, characterized in that, The fourth circulating cooling assembly includes a copper tube, a fourth outlet head, and a fourth inlet head. The copper tube is wound around the outer periphery of the coil. The fourth outlet head is installed at one end of the copper tube and connects the copper tube to an external coolant circulation device. The fourth inlet head is installed at the other end of the copper tube and connects the copper tube to the external coolant circulation device.

6. A long-life electromagnet polishing wheel as described in claim 1, characterized in that, The fourth circulating cooling assembly further includes multiple cooling elements, a fifth inlet head, and a fifth outlet head. The multiple cooling elements are installed between the first magnetic arm and the second magnetic arm, and can wrap the coil and are connected in sequence. The fifth inlet head and the fifth outlet head are respectively installed on the two cooling elements at the beginning and end, and connect the multiple cooling elements to the external coolant circulation equipment.

7. A long-life electromagnet polishing wheel as described in claim 6, characterized in that, The cooling component includes a cooling plate, two sets of internal channels, an inlet, an outlet, a rotating block, an internal channel, a rotating plate, and a snap-fit ​​unit. The two sets of internal channels, the inlet, and the outlet are all located within the cooling plate and are separated. The rotating block is rotatably mounted within the cooling plate. The cooling component has a first connected state where the two sets of internal channels, the inlet, the outlet, and the internal channel are connected, and a second connected state where the inlet, the outlet, and the internal channel are connected. The rotating plate is mounted on the rotating block, and the snap-fit ​​unit is mounted on the outer periphery of the cooling plate and can be used to snap the rotating plate.

8. A long-life electromagnet polishing wheel as described in claim 7, characterized in that, The rotating plate has multiple snap-fit ​​slots; The snap-fit ​​unit includes a mounting base, multiple limiting rods, a snap-fit ​​block, and multiple elastic structures. The mounting base is installed on the outer periphery of the cooling plate. The multiple limiting rods pass through the mounting base. The snap-fit ​​block is installed at one end of the multiple limiting rods near the rotating plate. The multiple elastic structures are sleeved on the multiple limiting rods and abut against the mounting base and the snap-fit ​​block, and are arranged in a one-to-one correspondence with the multiple limiting rods.

9. A long-life electromagnet polishing wheel as described in claim 1, characterized in that, The mounting plate includes a plate body, a sliding groove, and a sliding base. The sliding groove is formed in the plate body, and the sliding base is installed in the sliding groove and can slide along a first direction. The first magnetic arm has multiple waist-shaped holes; The drive mechanism includes an adjusting block, an intermediate shaft, a rotating shaft, a drive motor, a first driving wheel, a first driven wheel, a first synchronous belt, a second driving wheel, a second driven wheel, and a second synchronous belt. The adjusting block passes through the first magnetic arm and is configured to be fixed to the first magnetic arm through multiple oblong holes and multiple external bolts, and is movable relative to the first magnetic arm in a second direction. The intermediate shaft is rotatably mounted on the adjusting block. The rotating shaft passes through the polishing wheel and is engaged with the polishing wheel, and is rotatably mounted between the first magnetic arm and the second magnetic arm. The drive motor is mounted on the slide block. The first driving wheel is mounted on the output end of the drive motor. The first driven wheel is mounted on one end of the intermediate shaft. The first synchronous belt engages with the outer periphery of the first driving wheel and the first driven wheel. The second driving wheel is mounted on the end of the intermediate shaft away from the first driven wheel. The second driven wheel is mounted on the rotating shaft. The second synchronous belt engages with the outer periphery of the second driving wheel and the second driven wheel.

10. A long-life electromagnet polishing wheel as described in claim 1, characterized in that, The magnetorheological fluid jetting mechanism includes two first fixed seats, a first clamp, a jetting pipe, and a first magnetic shield. One of the first fixed seats is mounted on the first magnetic arm, and the other first fixed seat is mounted on the second magnetic arm. The first clamp is mounted between the two first fixed seats. The jetting pipe is mounted on the first clamp and is movable relative to the first clamp. The first magnetic shield is mounted on the jetting end of the jetting pipe. The magnetorheological fluid recovery mechanism includes two second fixed seats, a second clamp, a recovery tube, and a second magnetic shield. One of the second fixed seats is installed on the first magnetic arm, and the other second fixed seat is installed on the second magnetic arm. The second clamp is installed between the two second fixed seats. The recovery tube is installed on the second clamp and can move relative to the second clamp. The second magnetic shield is installed at the recovery end of the recovery tube.

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