A magnetorheological polishing assembly and a magnetorheological polishing device

Abstract

The utility model discloses a kind of magneto-rheological polishing assembly and magneto-rheological polishing device, it is related to the field of magneto-rheological polishing, including support plate, magnetic field generator is rotatably arranged in the support plate lower, the support plate top is fixed with liquid storage cylinder, the support plate one side is fixed with support frame, sliding seat is slidably arranged on the support frame, the sliding seat bottom end is rotatably connected with rotating shaft, the rotating shaft outside is fixed with carousel, carousel upper is provided with round cover, the round cover inner ring is fixed with second magnetic shield, when cylinder drives carousel and workpiece is inserted into liquid storage cylinder inside, carousel outside round cover will shield the top of liquid storage cylinder, avoid carousel rotation, hit magneto-rheological fluid, make magneto-rheological fluid splash, cause waste, simultaneously, the first magnetic shield of round cover inside can block the upper end of the magnetic field generated by magnetic field generator, avoid magnetic field diffusion outward, so that magnetic field only acts on the magneto-rheological fluid in liquid storage cylinder.

Description

Technical Field

[0001] This utility model relates to the field of magnetorheological polishing, and in particular to a magnetorheological polishing component and a magnetorheological polishing device. Background Technology

[0002] With the development of science and technology, modern optical systems have increasingly higher requirements for the surface shape accuracy, surface roughness, and subsurface damage of optical components. This poses new challenges to optical manufacturing technology, and various advanced deterministic polishing technologies are constantly emerging. Magnetorheological polishing is an advanced optical surface processing technology that utilizes the rheological effect of magnetorheological fluid in a magnetic field to form a flexible ribbon "micro-grinding head." This generates significant shear stress in the contact area between the workpiece surface and the magnetorheological fluid, thereby removing material from the workpiece surface. The rheological properties of the magnetorheological fluid are affected by the magnetic field strength.

[0003] For example, a patent entitled "A Magnetorheological Polishing Component and a Magnetorheological Polishing Device" (patent application number CN202210636517.4) discloses a magnetorheological polishing component and a magnetorheological polishing device. By setting a rotating clamping component and a magnetic field generating device, the grinding trajectory acting on the workpiece becomes more complex and varied. However, when the workpiece rotates, it will come into contact with the magnetorheological fluid, and the force generated will cause the liquid to splash out of the polishing tank, resulting in waste.

[0004] Therefore, it is necessary to propose a magnetorheological polishing component and a magnetorheological polishing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a magnetorheological polishing component and a magnetorheological polishing device to solve the problem in the prior art where the workpiece comes into contact with the magnetorheological fluid when it rotates, and the force generated causes the fluid to splash out of the polishing tank, resulting in waste.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a magnetorheological polishing device, comprising a support plate, a magnetic field generator rotatably disposed below the support plate, a liquid storage cylinder fixed at the top of the support plate, a support frame fixed on one side of the support plate, a sliding seat slidably disposed on the support frame, a rotating shaft rotatably connected to the bottom end of the sliding seat, a turntable fixed outside the rotating shaft, a circular cover disposed above the turntable, and a second magnetic shielding plate fixed within the inner ring of the circular cover;

[0007] The turntable extends into the interior of the liquid storage cylinder.

[0008] Preferably, a slide rail is fixed on one side of the support frame, the sliding seat is slidably fitted on the slide rail, a first motor is fixed on the top of the sliding seat, the drive shaft of the first motor is fixedly connected, and a drain port is connected to the outside of the liquid storage cylinder.

[0009] Preferably, the bottom end of the support plate is connected to a plurality of connecting rods, the bottom end of the plurality of connecting rods is fixed to a base plate, the bottom end of the base plate is fixed to a first magnetic shielding plate, and the bottom end of the first magnetic shielding plate is fixed to a second motor.

[0010] Preferably, the second motor has a rotating shaft at its top, which extends out of the support plate, and a mounting plate is fixed to the outer side of the extended end. The magnetic field generator is fixed on the mounting plate.

[0011] Preferably, a fixing frame is fixed to the top of the slide rail, a cylinder is fixed to the top of the fixing frame, and a telescopic end is provided at the bottom of the cylinder, the telescopic end and the sliding seat are fixedly connected.

[0012] This utility model also discloses a magnetorheological polishing component, including a clamping port, which is opened on a turntable and the bottom and top ends of the clamping port are connected to the outside. Springs are fixed on both sides inside the clamping port, and clamping plates are fixed on opposite ends of the two springs.

[0013] Preferably, the clamping plate is elastic.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. In the actual operation of this utility model, by simultaneously starting the first motor and the second motor, the turntable drives the clamped workpiece to rotate in the magnetorheological fluid in the storage cylinder, while the second motor drives the magnetic field generator to rotate. Since the rotation directions of the first motor and the second motor are opposite, the magnetorheological fluid rotates and changes with the magnetic field generator. Combined with the opposite rotation of the workpiece itself, the grinding trajectory acting on the workpiece can be made more complex and varied, avoiding a fixed grinding path, thereby improving the removal efficiency and uniformity.

[0016] 2. When the cylinder drives the turntable and the workpiece into the liquid storage cylinder, the round cover on the outside of the rotating shaft will block the top of the liquid storage cylinder to prevent the turntable from hitting the magnetorheological fluid and splashing it out, causing waste. At the same time, the first magnetic isolation plate on the inside of the round cover can block the upper end of the magnetic field generated by the magnetic field generator to prevent the magnetic field from spreading outward and to make the magnetic field only act on the magnetorheological fluid in the liquid storage cylinder.

[0017] 3. In the actual operation of this utility model, the workpiece can be placed in two clamping plates. The workpiece can be clamped by the elastic force of the spring, so as to prevent the workpiece from moving during polishing. The clamping plates are elastic and can clamp and fix workpieces of different sizes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the magnetorheological polishing component and magnetorheological polishing device of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the turntable and clamping port of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the second magnetic shielding plate of this utility model.

[0021] In the diagram: 1. Support plate; 2. Liquid storage cylinder; 3. Drain outlet; 4. Base plate; 5. First magnetic shielding plate; 6. First motor; 7. Connecting rod; 8. Support frame; 9. Slide rail; 10. Sliding seat; 11. Second motor; 12. Rotating shaft; 13. Round cover; 14. Turntable; 15. Clamping port; 16. Mounting plate; 17. Magnetic field generator; 18. Second magnetic shielding plate; 19. Spring; 20. Clamping plate. Detailed Implementation

[0022] This utility model provides, for example Figures 1-3 The magnetorheological polishing assembly and device shown include a support plate 1. A magnetic field generator 17 is rotatably disposed below the support plate 1. The magnetic field generator 17 can use a magnetic field generating device disclosed in the patent entitled "A Magnetorheological Polishing Assembly and Device" (patent application number CN202210636517.4). The magnetic field generating device includes magnets arranged in a matrix along the horizontal and vertical directions. In the horizontal and vertical directions, the magnetic poles of any two adjacent magnets are opposite.

[0023] A liquid storage cylinder 2 is fixed at the top of the support plate 1, and the turntable 14 extends into the interior of the liquid storage cylinder 2. This utility model also discloses a magnetorheological polishing assembly, including a clamping port 15. The clamping port 15 is opened on the turntable 14, and the bottom and top ends of the clamping port 15 are connected to the outside. Springs 19 are fixed on both sides inside the clamping port 15, and clamping plates 20 are fixed on opposite ends of the two springs 19. It should be noted that the clamping port 15 can use a filter mesh structure to facilitate the magnetorheological fluid to enter the interior of the clamping port 15 and contact the workpiece.

[0024] In actual operation of this utility model, the workpiece can be placed in the two clamping plates 20. The workpiece can be clamped by the elastic force of the spring 19 to prevent the workpiece from moving during polishing. The clamping plates 20 are elastic and can clamp and fix workpieces of different sizes.

[0025] A support frame 8 is fixed to one side of the support plate 1. A sliding seat 10 is slidably mounted on the support frame 8. A rotating shaft 12 is rotatably connected to the bottom end of the sliding seat 10. A turntable 14 is fixed to the outside of the rotating shaft 12. A round cover 13 is mounted above the turntable 14. A second magnetic shielding plate 18 is fixed to the inner ring of the round cover 13. A slide rail 9 is fixed to one side of the support frame 8. The sliding seat 10 is slidably fitted onto the slide rail 9. A first motor 6 is fixed to the top of the sliding seat 10. The drive shaft of the first motor 6 is fixedly connected.

[0026] A mounting bracket is fixed to the top of the slide rail 9, and a cylinder is fixed to the top of the mounting bracket. A telescopic end is provided at the bottom of the cylinder, and the telescopic end is fixedly connected to the slide seat 10.

[0027] The bottom end of the support plate 1 is connected to multiple connecting rods 7, the bottom end of the multiple connecting rods 7 is fixed to a base plate 4, the bottom end of the base plate 4 is fixed to a first magnetic shielding plate 5, the bottom end of the first magnetic shielding plate 5 is fixed to a second motor 11, and the top end of the second motor 11 is provided with a rotating shaft, the rotating shaft extends out of the support plate 1, and the outer side of the extended end is fixed to a mounting plate 16. The magnetic field generator 17 is fixed on the mounting plate 16. The second motor 11 can drive the rotating shaft and the magnetic field generator 17 to rotate.

[0028] In the actual operation of this utility model, by simultaneously starting the first motor 6 and the second motor 11, the turntable 14 drives the clamped workpiece to rotate in the magnetorheological fluid in the liquid storage cylinder 2, while the second motor 11 drives the magnetic field generator 17 to rotate. Since the rotation directions of the first motor 6 and the second motor 11 are opposite, the magnetorheological fluid changes with the rotation of the magnetic field generator 17. Combined with the opposite rotation of the workpiece itself, the grinding trajectory acting on the workpiece can be made more complex and varied, avoiding a fixed grinding path, thereby improving the removal efficiency and uniformity.

[0029] Furthermore, when the cylinder drives the turntable 14 and the workpiece to enter the liquid storage cylinder 2, the round cover 13 on the outside of the rotating shaft 12 will block the top of the liquid storage cylinder 2 to prevent the turntable 14 from hitting the magnetorheological fluid after rotating, causing the magnetorheological fluid to splash out and be wasted. At the same time, the first magnetic shielding plate 5 on the inside of the round cover 13 can block the upper end of the magnetic field generated by the magnetic field generator 17 to prevent the magnetic field from spreading outward, so that the magnetic field only acts on the magnetorheological fluid in the liquid storage cylinder 2.

[0030] The outside of the liquid storage cylinder 2 is connected to a drain port 3, which facilitates the discharge of the magnetorheological fluid.

Claims

1. A magnetorheological finishing device comprising a support plate (1), characterized in that: A magnetic field generator (17) is rotatably arranged below the support plate (1). A liquid storage cylinder (2) is fixed at the top of the support plate (1). A support frame (8) is fixed on one side of the support plate (1). A sliding seat (10) is slidably arranged on the support frame (8). A rotating shaft (12) is rotatably connected to the bottom of the sliding seat (10). A turntable (14) is fixed on the outside of the rotating shaft (12). A round cover (13) is arranged above the turntable (14). A second magnetic shielding plate (18) is fixed in the inner ring of the round cover (13). The turntable (14) extends into the interior of the liquid storage cylinder (2).

2. The magnetorheological finishing device of claim 1, wherein: A slide rail (9) is fixed on one side of the support frame (8), and the sliding seat (10) is slidably fitted on the slide rail (9). A first motor (6) is fixed at the top of the sliding seat (10), and the drive shaft of the first motor (6) is fixedly connected. A drain port (3) is connected to the outside of the liquid storage cylinder (2).

3. The magnetorheological finishing device of claim 2, wherein: The bottom end of the support plate (1) is connected to a plurality of connecting rods (7), the bottom end of the plurality of connecting rods (7) is fixed to a base plate (4), the bottom end of the base plate (4) is fixed to a first magnetic shielding plate (5), and the bottom end of the first magnetic shielding plate (5) is fixed to a second motor (11).

4. The magnetorheological finishing device of claim 3, wherein: The second motor (11) has a rotating shaft at its top, which extends out of the support plate (1) and is fixed with a mounting plate (16) on the outside of the extended end. The magnetic field generator (17) is fixed on the mounting plate (16).

5. The magnetorheological finishing device of claim 4, wherein: The top of the slide rail (9) is fixed with a fixed frame, the top of the fixed frame is fixed with a cylinder, the bottom of the cylinder is provided with a telescopic end, and the telescopic end is fixedly connected to the slide seat (10).

6. A magnetorheological finishing assembly, comprising: The magnetorheological polishing apparatus as described in any one of claims 1-5 further includes a clamping port (15), which is opened on the turntable (14) and the bottom and top ends of the clamping port (15) are connected to the outside. Springs (19) are fixed on both sides inside the clamping port (15), and clamping plates (20) are fixed on opposite ends of the two springs (19).

7. The magnetorheological finishing assembly of claim 6, wherein: The clamping plate (20) is elastic.

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