Polyhedral magneto-rheological polishing equipment

Abstract

The utility model discloses a polyhedral magneto-rheological polishing equipment relates to magneto-rheological polishing technical field, the equipment includes polishing module, carrying liquid wheel module and magneto-rheological fluid circulation module, the motion mechanism of polishing module is connected with the polishing auxiliary mechanism, the bottom of polishing auxiliary mechanism is used for connecting the piece to be polished, and the magneto-rheological fluid circulation module is used for circulating magneto-rheological fluid. The polishing auxiliary mechanism can drive a to-be-polished part to rotate around a Y-direction shaft, and the movement mechanism can drive the polishing auxiliary mechanism to horizontally move in the X direction, horizontally move in the Y direction and / or swing around a Z-direction shaft; the liquid carrying wheel module is provided with a rotatable liquid carrying wheel and is used for polishing a to-be-polished part; the magnetorheological fluid circulation module comprises a nozzle and a recovery device and can spray magnetorheological fluid to the fluid carrying wheel and recover the magnetorheological fluid on the fluid carrying wheel. By means of the movement mechanism, the to-be-polished part can horizontally move in the X direction, horizontally move in the Y direction and / or swing around the Z-direction axis while rotating, and therefore the polishing machine is suitable for polishing optical elements of various face types.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetorheological polishing, in particular to a multi-faceted magnetorheological polishing device. Background Art

[0002] Magnetorheological polishing is a technology used for high-precision flexible surface polishing of optical components, with an accuracy reaching the nanometer level. This technology is widely applied in key fields such as aerospace, military industry, and chip manufacturing.

[0003] Currently, the same model of magnetorheological polishing equipment can only polish optical elements with a single surface type, making it difficult to apply to optical elements with multiple surface types. The polishing machine has low versatility, high polishing costs, and low polishing accuracy. Therefore, there is an urgent need to design a device that can be applied to the polishing of optical elements with multiple surface types. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a multi-faceted magnetorheological polishing device to solve the problems existing in the above-mentioned prior art. Through the motion mechanism, while the workpiece to be polished can rotate on its own axis, it can also translate along the X-axis, translate along the Y-axis, and / or swing around the Z-axis, so as to be applicable to the polishing of optical elements with multiple surface types.

[0005] To achieve the above purpose, the utility model provides the following solution:

[0006] The utility model provides a multi-faceted magnetorheological polishing device, including:

[0007] A polishing module, the polishing module includes a motion mechanism, the motion mechanism is connected to a polishing auxiliary mechanism, the bottom of the polishing auxiliary mechanism is used to connect the workpiece to be polished, the polishing auxiliary mechanism can drive the workpiece to be polished to rotate around the Y-axis, and the motion mechanism can drive the polishing auxiliary mechanism to translate along the X-axis, translate along the Y-axis, and / or swing around the Z-axis;

[0008] A liquid-carrying wheel module, which has a rotatable liquid-carrying wheel for polishing the workpiece to be polished;

[0009] A magnetorheological fluid circulation module, which includes a nozzle and a recovery device arranged on both sides of the liquid-carrying wheel respectively. The nozzle and the recovery device are respectively located on a radial section of the liquid-carrying wheel, and can spray magnetorheological fluid onto the liquid-carrying wheel and recover the magnetorheological fluid on the liquid-carrying wheel.

[0010] Optionally, the polishing module further includes a frame, on which the motion mechanism is provided. The motion mechanism includes a Y-direction motion mechanism, an X-direction motion mechanism, and a swing mechanism about the Z-axis. The Y-direction motion mechanism includes two vertically symmetrically arranged vertical lead screws, which are connected by a closed transmission belt. One of the vertical lead screws is drivingly connected to a vertical lead screw driving motor. A vertical moving nut is provided on the vertical lead screw. The X-direction motion mechanism is connected between the two vertical moving nuts through an X-direction mounting member. The X-direction motion mechanism includes a horizontal lead screw, one end of which is drivingly connected to a horizontal lead screw driving motor. The horizontal moving nut of the horizontal lead screw is provided with a swing mechanism about the Z-axis through a swing mechanism connecting frame.

[0011] Optionally, the swing mechanism about the Z-axis includes a swing driving motor provided on the swing mechanism connecting frame. The motor shaft of the swing driving motor is connected to a deflection rotating frame. The deflection rotating frame is hinged to a generatrix rod. The end of the generatrix rod is hinged to a rotating rod. The rotating rod is connected to a swing disk. The swing disk is movably arranged at the bottom of the swing mechanism connecting frame. The bottom of the swing disk is connected to the polishing auxiliary mechanism. The swing driving motor drives the deflection rotating frame to rotate. The deflection rotating frame drives the generatrix rod to rotate around the intersection point of the generatrix rod and the rotating rod. The rotating rod is driven by the generatrix rod and drives the swing disk and the polishing auxiliary mechanism to swing.

[0012] Optionally, the polishing auxiliary mechanism includes an auxiliary connecting frame connected to the bottom of the swing disk. An auxiliary driving motor is provided on the auxiliary connecting frame. The motor shaft of the auxiliary driving motor is connected to a Morse taper sleeve. The bottom of the Morse taper sleeve is connected to a hexagonal Morse taper circular workpiece fixture, which is used for clamping the workpiece to be polished.

[0013] Optionally, it further includes a motion self-locking mechanism. The motion self-locking mechanism includes an L-shaped support frame installed on the frame, which is located near the vertical lead screw driving motor. A positioning support disk frame is provided on the L-shaped support frame. A fixed friction applying member is fixedly installed in the positioning support disk frame. The motor shaft of the vertical lead screw driving motor is drivingly connected to a driving push disk. The bottom of the driving push disk is drivingly connected to a top-receiving intermediate member. The bottom of the top-receiving intermediate member can be drivingly connected to the top of the vertical lead screw, and a support spring is provided at the connection position. The vertical lead screw motor can drive the driving push disk and the top-receiving intermediate member to rotate relative to each other by a set angle, and drive the top-receiving intermediate member to move downward to be drivingly connected to the vertical lead screw. When the vertical lead screw driving motor stops, the support spring can drive the top-receiving intermediate member to move upward until the outer side wall of the top-receiving intermediate member is fixedly abutted against the inner side wall of the fixed friction applying member.

[0014] Optionally, the liquid-carrying wheel module includes a mobile base, on which a liquid-carrying wheel shafting is provided. A liquid-carrying wheel is sleeved on the wheel shaft of the liquid-carrying wheel shafting, and one end of the wheel shaft of the liquid-carrying wheel shafting is drivingly connected to a wheel shaft drive motor.

[0015] Optionally, a magnetic field generator is provided on the mobile base. Two magnetic field generators are threadedly connected to a fine adjustment screw rod, and one end of the fine adjustment screw rod is movably arranged on the mobile base through a fixture; the two magnetic field generators are located at the axial two ends of the liquid-carrying wheel, and when the fine adjustment screw rod rotates, it can drive the two magnetic field generators to move closer to or away from the liquid-carrying wheel.

[0016] Optionally, the magnetorheological fluid circulation module includes a cylinder body for containing magnetorheological fluid, and a stirring device is provided in the cylinder body; the cylinder body is connected to the nozzle through a pipeline, and a centrifugal pump and a nozzle valve are provided on the pipeline, and a nozzle magnetic sleeve is installed at the outlet of the nozzle; the recovery device includes a three-hole funnel, one end of the three-hole funnel is installed with a contact rubber head, and the contact rubber head abuts against the side of the liquid-carrying wheel away from the nozzle; the other end of the three-hole funnel is provided with a collection nozzle, an adapter, and a funnel valve in sequence, the funnel valve is connected to a recovery pipeline, the recovery pipeline communicates with the inside of the cylinder body, and a funnel baffle is provided at the three-hole funnel.

[0017] Optionally, the magnetorheological fluid circulation module further includes a heat dissipation system, which includes a plurality of heat dissipation fins arranged on one side of the cylinder body. A heat dissipation single pipe is embedded in the groove of the heat dissipation fin. One end of the heat dissipation single pipe communicates with the recovery pipeline, and the other end communicates with the inside of the cylinder body. A plurality of heat dissipation fans are provided at the heat dissipation single pipe; a temperature detection module is provided at the recovery pipeline for detecting the temperature of the magnetorheological fluid.

[0018] The present utility model also provides a multi-faceted magnetorheological polishing method, which includes the following steps:

[0019] When the surface to be machined of the workpiece to be polished is a plane, the workpiece to be polished is driven to the machining position by the Y-direction movement mechanism, and then the workpiece to be polished is driven to reciprocate by the X-direction movement mechanism, and the polishing auxiliary mechanism drives the workpiece to be polished to rotate to realize planar grinding and polishing;

[0020] When the surface to be machined of the workpiece to be polished is a spherical surface, the polishing auxiliary mechanism drives the workpiece to be polished to rotate, and the workpiece to be polished is driven to swing around the Z-axis by the Z-axis swing mechanism for polishing;

[0021] When the surface to be machined of the workpiece to be polished is a non-spherical curved surface, the polishing auxiliary mechanism drives the workpiece to be polished to rotate; at the same time, the workpiece to be polished is moved along the X-direction and the Y-direction by the X-direction movement mechanism and the Y-direction movement mechanism, and the workpiece to be polished is driven to swing around the Z-axis by the Z-axis swing mechanism for polishing.

[0022] The present utility model has achieved the following technical effects compared with the prior art:

[0023] Through the motion mechanism, the present utility model enables the workpiece to be polished to rotate while translating in the X direction, translating in the Y direction, and / or swinging around the Z-axis. When the surface to be processed of the workpiece to be polished is a plane, while the workpiece to be polished rotates, it reciprocates in the X direction and cooperates with the liquid-carrying wheel to achieve planar grinding and polishing; when the surface to be processed of the workpiece to be polished is a spherical surface, while the workpiece to be polished rotates, it swings around the Z-axis for polishing; when the surface to be processed of the workpiece to be polished is a non-spherical curved surface, while the workpiece to be polished rotates, it moves in the X and Y directions and swings around the Z-axis for polishing; thus, it is applicable to the polishing of optical elements with various surface types. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic structural diagram of the multi-surface-type magnetorheological polishing equipment of the present utility model;

[0026] Figure 2 Schematic diagram of the liquid-carrying wheel module of the present utility model;

[0027] Figure 3 Schematic diagram of the polishing module of the present utility model;

[0028] Figure 4 Side view of the polishing module of the present utility model;

[0029] Figure 5 Schematic diagram of the magnetorheological fluid circulation module of the present utility model;

[0030] Figure 6 Side view of the magnetorheological fluid circulation module of the present utility model;

[0031] Figure 7 Schematic diagram of the polishing process when the surface to be processed of the workpiece to be polished is a plane;

[0032] Figure 8 Schematic diagram of the polishing process when the surface to be processed of the workpiece to be polished is a spherical surface;

[0033] Figure 9 Schematic diagram of the polishing process when the surface to be processed of the workpiece to be polished is a non-spherical curved surface.

[0034] In the figure: 100 - polishing module, 200 - liquid - carrying wheel module, 300 - magnetorheological fluid circulation module, 1 - liquid - carrying wheel, 2 - liquid - carrying wheel shafting, 3 - mobile base, 4 - magnetic field generator, 5 - fine - tuning screw, 6 - fixture, 7 - swing mechanism connecting frame, 8 - deflection rotating frame, 9 - busbar, 10 - rotating rod, 11 - swing disk, 12 - auxiliary connecting frame, 13 - Morse taper sleeve, 14 - hexagonal Morse taper round workpiece fixture, 15 - fixed friction - applying part, 16 - active push - twist disk, 17 - positioning support disk frame, 18 - top - receiving intermediate part, 19 - support spring, 20 - L - shaped support frame, 21 - vertical lead - screw bearing seat, 22 - vertical lead - screw, 23 - horizontal slider connecting part, 24 - vertical slider connecting part, 25 - vertical moving nut, 26 - horizontal lead - screw bearing seat, 27 - horizontal lead - screw, 28 - horizontal motor fixing part, 29 - horizontal moving nut, 30 - contact rubber head, 31 - three - hole funnel, 32 - collecting nozzle, 33 - adapter, 34 - funnel valve, 35 - funnel baffle, 36 - nozzle magnetic sleeve, 37 - nozzle, 38 - nozzle valve, 39 - cylinder block, 40 - stirring device, 41 - stirring paddle, 42 - temperature detection module, 43 - heat sink, 44 - single heat - dissipating pipe, 45 - radiator fan, 46 - structural frame. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0036] The purpose of the present invention is to provide a multi - surface magnetorheological polishing device to solve the problems existing in the above - mentioned prior art. Through the motion mechanism, while the workpiece to be polished rotates, it can translate in the X - direction, translate in the Y - direction and / or swing around the Z - axis, so as to be applicable to the polishing of optical elements with various surface types.

[0037] To make the above - mentioned purposes, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0038] As Figures 1 to 6As shown in the figure, the present utility model provides a multi-faceted magnetorheological polishing device, which includes a polishing module 100, a liquid-carrying wheel module 200, and a magnetorheological fluid circulation module 300. The polishing module 100 includes a motion mechanism, the motion mechanism is connected to a polishing auxiliary mechanism, the bottom of the polishing auxiliary mechanism is used to connect the workpiece to be polished, the polishing auxiliary mechanism can drive the workpiece to be polished to rotate around the Y-axis, and the motion mechanism can drive the polishing auxiliary mechanism to translate in the X-direction, translate in the Y-direction and / or swing around the Z-axis; the liquid-carrying wheel module 200 has a rotatable liquid-carrying wheel 1 for polishing the workpiece to be polished; the magnetorheological fluid circulation module 300 includes a nozzle 37 and a recovery device respectively arranged on both sides of the liquid-carrying wheel 1, which can spray magnetorheological fluid onto the liquid-carrying wheel 1 and recover the magnetorheological fluid on the liquid-carrying wheel 1. The volume concentration of hydroxyl iron powder in the magnetorheological fluid is 4% - 6%. The present utility model ensures the polishing accuracy through four degrees of freedom of motion provided by the motion mechanism, namely translation in the X-direction, translation in the Y-direction, swing around the Z-axis, and the rotation of the workpiece to be polished, as well as the main motion of the liquid-carrying wheel 1, and is applicable to the polishing of various optical elements. The polishing stability is ensured by controlling the temperature of the magnetorheological fluid.

[0039] In order to achieve the multi-directional movement of the workpiece to be polished, a frame is designed in this embodiment. A movement mechanism is provided on the frame. The movement mechanism includes a Y-direction movement mechanism, an X-direction movement mechanism, and a swing mechanism around the Z-axis. The Y-direction movement mechanism includes two vertically symmetrically arranged vertical lead screws 22. The vertical lead screws 22 are installed on the frame through vertical lead screw bearing seats 21. The two vertical lead screws 22 are connected by a closed transmission belt. One of the vertical lead screws 22 is drivingly connected to a vertical lead screw 22 driving motor. A vertical moving nut 25 is provided on the vertical lead screw 22. The X-direction movement mechanism is connected between the two vertical moving nuts 25 through an X-direction mounting member. One end of the vertical slider connecting member 24 is fixedly connected to the vertical moving nut 25, and the other end is connected to a vertical slider. The vertical slider is slidably arranged on the vertical slide rail inside the frame. The X-direction mounting member includes an X-direction mounting frame and an X-direction slide rail fixed on the two vertical moving nuts 25. An X-direction slider is provided on the X-direction slide rail. The X-direction slider is connected to the horizontal moving nut 29 of the horizontal lead screw 27 through a horizontal slider connecting member 23. The X-direction movement mechanism includes a horizontal lead screw 27 movably arranged on the X-direction mounting frame through a horizontal lead screw bearing seat 26. One end of the horizontal lead screw 27 is drivingly connected to a horizontal lead screw 27 driving motor. The horizontal lead screw 27 driving motor is arranged on a horizontal motor fixing member 28. The horizontal moving nut 29 of the horizontal lead screw 27 is provided with a swing mechanism around the Z-axis through a swing mechanism connecting frame 7. The swing mechanism around the Z-axis in this embodiment includes a swing driving motor arranged on the swing mechanism connecting frame 7. The motor shaft of the swing driving motor is connected to a deflection rotation frame 8. The deflection rotation frame 8 is a 15° deflection rotation frame 8. The deflection rotation frame 8 is hinged to a generatrix rod 9. The end of the generatrix rod 9 is hinged to a rotating rod 10. The rotating rod 10 is connected to a swing disk 11. The swing disk 11 is movably arranged at the bottom of the swing mechanism connecting frame 7. The bottom of the swing disk 11 is connected to a polishing auxiliary mechanism. The swing driving motor drives the deflection rotation frame 8 to rotate. The deflection rotation frame 8 drives the generatrix rod 9 to rotate around the intersection point of the generatrix rod 9 and the rotating rod 10. The rotating rod 10 is driven by the generatrix rod 9 and drives the swing disk 11 and the polishing auxiliary mechanism to swing.

[0040] In order to achieve the self-rotation of the workpiece to be polished, the polishing auxiliary mechanism in this embodiment includes an auxiliary connecting frame 12 connected to the bottom of the swing disk 11. An auxiliary driving motor is provided on the auxiliary connecting frame 12. The motor shaft of the auxiliary driving motor is connected to a Morse taper sleeve 13. The bottom of the Morse taper sleeve 13 is connected to a hexagonal Morse taper circular workpiece fixture 14. The hexagonal Morse taper circular workpiece fixture 14 is used to clamp the workpiece to be polished, and the rotation of the large polishing workpiece is realized through the auxiliary driving motor.

[0041] In order to avoid problems such as oscillation of the Y-direction moving mechanism during startup and shutdown, a motion self-locking mechanism is designed in this embodiment. The motion self-locking mechanism includes an L-shaped support frame 20 installed on the frame. The L-shaped support frame 20 is located near the driving motor of the vertical lead screw 22. A positioning support disc frame 17 is provided on the L-shaped support frame 20. A fixed friction-applying member 15 is fixedly installed inside the positioning support disc frame 17. The motor shaft of the driving motor of the vertical lead screw 22 is drivingly connected to a driving push disc 16. The bottom of the driving push disc 16 is drivingly connected to a top-receiving intermediate member 18. A hemispherical groove is formed at the top of the top-receiving intermediate member 18. The hemispherical protrusion at the bottom of the driving push disc 16 is located inside the hemispherical groove. When the driving push disc 16 rotates, the hemispherical protrusion can move along the track of the hemispherical groove. The circumferential limiting groove at the bottom of the top-receiving intermediate member 18 can move downward to engage with the circumferential limiting protrusion at the top of the vertical lead screw 22, so as to be drivingly connected to the top of the vertical lead screw 22 and realize synchronous circumferential rotation of the two.

[0042] During operation, when the motor of the vertical lead screw 22 starts, it can drive the driving push disc 16 to rotate, and then rotate a set angle relative to the top-receiving intermediate member 18. At this time, the hemispherical protrusion at the bottom of the driving push disc 16 rotates along the hemispherical groove track at the top of the top-receiving intermediate member 18. Since the driving push disc 16 is axially stationary, during the rotation process, as the hemispherical protrusion gradually enters the upper part of the hemispherical groove, it axially presses the top-receiving intermediate member 18 to move vertically downward and presses the support spring 19. When it rotates to the limit position of the upper part of the hemispherical groove at the top of the top-receiving intermediate member 18, it is limited. At this time, the driving push disc 16 drives the top-receiving intermediate member 18 to rotate synchronously. Since the top-receiving intermediate member 18 moves downward, the limiting groove at the bottom of the top-receiving intermediate member 18 engages with the limiting protrusion at the top of the vertical lead screw 22 to realize driving connection, and then the driving motor of the vertical lead screw 22 drives the vertical lead screw 22 to transmit power.

[0043] When the driving motor of the vertical lead screw 22 stops, the support spring 19 can drive the top-receiving intermediate member 18 to move upward. At this time, the driving push disc 16 is stationary. During the upward movement of the top-receiving intermediate member 18, the hemispherical protrusion moves in the opposite direction along the hemispherical groove of the top-receiving intermediate member 18 until the hemispherical protrusion moves to the limit position at the lower part of the hemispherical groove. At this time, the top-receiving intermediate member 18 rotates in the opposite direction relative to the driving push disc 16 by a set angle. At this time, the hemispherical protrusion at the bottom of the driving push disc 16 enters the bottom of the hemispherical groove of the top-receiving intermediate member 18. Since the driving push disc 16 is axially fixed, when the top-receiving intermediate member 18 moves upward, the outer side wall of the conical structure of the top-receiving intermediate member 18 is fixedly abutted against the inner side wall of the fixed friction-applying member 15, so that the top-receiving intermediate member 18 is frictionally locked and cannot transmit circumferential rotation to the vertical lead screw 22 at this time.

[0044] The liquid-carrying wheel module 200 of this embodiment includes a mobile base 3. A liquid-carrying wheel shaft system 2 is provided on the mobile base 3, which includes a wheel shaft and a supporting bearing structure. A liquid-carrying wheel 1 is sleeved on the wheel shaft of the liquid-carrying wheel shaft system 2. One end of the wheel shaft of the liquid-carrying wheel shaft system 2 is drivingly connected to a wheel shaft driving motor, which can drive the liquid-carrying wheel 1 to rotate, thereby realizing the polishing process. A magnetic field generator 4 is provided on the mobile base 3. Two magnetic field generators 4 are threadedly connected to a fine-tuning screw rod 5. One end of the fine-tuning screw rod 5 is movably arranged on the mobile base 3 through a fixture 6. The two magnetic field generators 4 are located at the axial two ends of the liquid-carrying wheel 1. When the fine-tuning screw rod 5 rotates, it can drive the two magnetic field generators 4 to move closer to or away from the liquid-carrying wheel 1. The magnetic field generator 4 straddles above the wheel shaft of the liquid-carrying wheel 1 and does not directly contact the wheel shaft driving motor. The distance between the magnetic field generators 4 can be manually controlled to finely adjust the magnetic field intensity.

[0045] The magnetorheological fluid circulation module 300 of this embodiment includes a cylinder block 39. The cylinder block 39 is used to hold the magnetorheological fluid, and a stirring device 40 is provided in the cylinder block 39. The stirring device 40 includes a stirring motor and a stirring paddle 41. The cylinder block 39 is connected to a nozzle 37 through a pipeline. A centrifugal pump and a nozzle valve 38 are provided on the pipeline. A nozzle magnetic sleeve 36 is installed at the outlet of the nozzle 37, which ensures that the magnetorheological fluid about to be ejected is not interfered by a strong magnetic field. The ratio of the outer diameter of the nozzle magnetic sleeve 36 to the inner capillary diameter of the nozzle 37 is 3:20. The liquid outlet of the nozzle 37 is mainly circular. According to the accuracy requirements of the workpiece to be processed and the shape of the liquid-carrying wheel 1, it can also be set to other liquid outlet shapes, such as: oval, polygon, and irregular shape. And, the ratio of its internal length to the pipe diameter is 30:1. The recovery device includes a three-hole funnel 31. One end of the three-hole funnel 31 is installed with a contact rubber head 30. The contact rubber head 30 abuts against the side of the liquid-carrying wheel 1 away from the nozzle 37. After the contact rubber head 30 scrapes off the magnetorheological fluid on the liquid-carrying wheel 1, the liquid flows into the three-hole funnel 31 along the groove on the contact rubber head 30 for collection. The other end of the three-hole funnel 31 is successively installed with a collection nozzle 32, a transfer interface 33, and a funnel valve 34. The funnel valve 34 is connected to a recovery pipeline, and the recovery pipeline is communicated with the inside of the cylinder block 39. A funnel baffle 35 is provided at the three-hole funnel 31.

[0046] In order to achieve temperature control of the magnetorheological fluid and prevent its temperature from being too high, a heat dissipation system is designed in the magnetorheological fluid circulation module 300 of this embodiment. The heat dissipation system includes a plurality of heat sinks 43 disposed on one side of the cylinder block 39. The heat sinks 43 are mounted on the structural frame 46. A single heat dissipation pipe 44 is passed through the heat sinks 43. One end of the single heat dissipation pipe 44 is communicated with the recovery pipe, and the other end is communicated with the inside of the cylinder block 39. A plurality of heat dissipation fans 45 are provided at the single heat dissipation pipe 44. The magnetorheological fluid transfers heat to the single heat dissipation pipe 44 and the heat sinks 43, and at the same time, the heat sinks 43 made of aluminum alloy are evenly cooled by the heat dissipation fans 45. Such heat sinks 43 have high heat dissipation efficiency and are suitable for application in the magnetorheological fluid circulation system. A temperature detection module 42 is provided at the recovery pipe. It uses a known thermometer or other temperature detection structure to detect the temperature of the magnetorheological fluid and realize temperature visualization.

[0047] Another object of the present invention is to provide a multi-faceted magnetorheological polishing method. As Figure 7 , Figure 8 and Figure 9 shown, it includes the following steps:

[0048] When the surface to be machined of the workpiece to be polished is a plane, the workpiece to be polished is driven to the machining position by the Y-direction movement mechanism. Subsequently, the workpiece to be polished is driven to reciprocate by the X-direction movement mechanism, and the workpiece to be polished is driven to rotate by itself by the polishing auxiliary mechanism to achieve planar grinding and polishing.

[0049] When the surface to be machined of the workpiece to be polished is a spherical surface, the workpiece to be polished is driven to rotate by itself by the polishing auxiliary mechanism, and the workpiece to be polished is driven to swing around the Z-axis by the swing mechanism around the Z-axis for polishing.

[0050] When the surface to be machined of the workpiece to be polished is a non-spherical curved surface, the workpiece to be polished is driven to rotate by itself by the polishing auxiliary mechanism; at the same time, the workpiece to be polished is moved along the X-direction and Y-direction by the X-direction movement mechanism and the Y-direction movement mechanism, and the workpiece to be polished is driven to swing around the Z-axis by the swing mechanism around the Z-axis for polishing.

[0051] Specific examples are applied in the present invention to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A multi-faceted magnetorheological polishing device, characterized in that: Comprising: A polishing module, the polishing module includes a motion mechanism, the motion mechanism is connected to a polishing auxiliary mechanism, the bottom of the polishing auxiliary mechanism is used to connect the workpiece to be polished, the polishing auxiliary mechanism can drive the workpiece to be polished to rotate around the Y-axis, and the motion mechanism can drive the polishing auxiliary mechanism to translate along the X-axis, translate along the Y-axis and / or swing around the Z-axis; A liquid-carrying wheel module, which has a rotatable liquid-carrying wheel for polishing the workpiece to be polished; A magnetorheological fluid circulation module, which includes a nozzle and a recovery device respectively arranged on both sides of the liquid-carrying wheel, and can spray magnetorheological fluid onto the liquid-carrying wheel and recover the magnetorheological fluid on the liquid-carrying wheel.

2. The multi-faceted magnetorheological polishing equipment according to claim 1, characterized in that: The polishing module further includes a frame, the motion mechanism is provided on the frame, the motion mechanism includes a Y-direction motion mechanism, an X-direction motion mechanism and a swing mechanism around the Z-axis, the Y-direction motion mechanism includes two vertically symmetrically arranged vertical lead screws, the two vertical lead screws are connected by a closed transmission belt, one of the vertical lead screws is drivingly connected to a vertical lead screw drive motor, a vertical moving nut is provided on the vertical lead screw, and an X-direction motion mechanism is connected between the two vertical moving nuts through an X-direction mounting member. The X-direction motion mechanism includes a horizontal lead screw, one end of the horizontal lead screw is drivingly connected to a horizontal lead screw drive motor, and a swing mechanism around the Z-axis is installed on the horizontal moving nut of the horizontal lead screw through a swing mechanism connecting frame.

3. The multi-faceted magnetorheological polishing device according to claim 2, wherein: The swing mechanism around the Z-axis includes a swing drive motor provided on the swing mechanism connecting frame, the motor shaft of the swing drive motor is connected to a deflection rotation frame, the deflection rotation frame is hinged to a bus bar rod, the end of the bus bar rod is hinged to a rotating rod, the rotating rod is connected to a swing disk, the swing disk is movably arranged at the bottom of the swing mechanism connecting frame, and the bottom of the swing disk is connected to the polishing auxiliary mechanism; the swing drive motor drives the deflection rotation frame to rotate, the deflection rotation frame drives the bus bar rod to rotate around the intersection point of the bus bar rod and the rotating rod, and the rotating rod is driven by the bus bar rod and drives the swing disk and the polishing auxiliary mechanism to swing.

4. The multi-faceted magnetorheological polishing equipment according to claim 3, characterized in that: The polishing auxiliary mechanism includes an auxiliary connecting frame connected to the bottom of the swing disk, an auxiliary drive motor is provided on the auxiliary connecting frame, the motor shaft of the auxiliary drive motor is connected to a Morse taper sleeve, and a hexagonal Morse taper circular workpiece clamp is connected to the bottom of the Morse taper sleeve. The hexagonal Morse taper circular workpiece clamp is used to clamp the workpiece to be polished.

5. The multi-faceted magnetorheological polishing equipment according to claim 2, characterized in that: It also includes a motion self-locking mechanism, which includes an L-support frame installed on the frame, the L-support frame is located near the position of the vertical screw drive motor, the L-support frame is provided with a positioning support disc frame, a fixed friction applying member is fixedly installed in the positioning support disc frame, the motor shaft of the vertical screw drive motor is transmission-connected with an active push and torsion plate, the bottom of the active push and torsion plate is transmission-connected with a top receiving middle piece, the bottom of the top receiving middle piece can be transmission-connected with the top of the vertical screw, and a supporting spring is provided at the connecting position; the vertical screw motor can drive the active push and torsion plate and the top receiving middle piece to rotate relative to a set angle, and drive the top receiving middle piece to move downward and be transmission-connected with the vertical screw; when the vertical screw drive motor stops, the supporting spring can drive the top receiving middle piece to move upward until the outer wall of the top receiving middle piece is fixedly abutted against the inner wall of the fixed friction applying member.

6. The multi-faceted magnetorheological polishing apparatus according to claim 1, wherein: The liquid-carrying wheel module comprises a movable base, on which a liquid-carrying wheel shaft system is arranged, on which the liquid-carrying wheel shaft system is sleeved, and one end of the wheel shaft of the liquid-carrying wheel shaft system is transmission-connected with a wheel shaft driving motor.

7. The multi-faceted magnetorheological polishing equipment according to claim 6, wherein: A magnetic field generator is provided on the movable base, and two of the magnetic field generators are threadedly connected to a fine-tuning screw, and one end of the fine-tuning screw is movably arranged on the movable base through a clamp; the two magnetic field generators are located at both axial ends of the liquid carrying wheel, and when the fine-tuning screw rotates, the two magnetic field generators can be driven to move closer to or away from the liquid carrying wheel.

8. The multi-faceted magnetorheological polishing equipment according to claim 1, characterized in that: The magnetorheological fluid circulation module includes a cylinder body, which is used to contain magnetorheological fluid, and the cylinder body is provided with a stirring device; the cylinder body is connected to the nozzle through a pipeline, a centrifugal pump and a nozzle valve are provided on the pipeline, and a nozzle magnetic sleeve is installed at the nozzle outlet; the recovery device includes a three-hole funnel, one end of the three-hole funnel is provided with a contact rubber head, and the contact rubber head abuts against the side of the liquid carrier wheel away from the nozzle; the other end of the three-hole funnel is provided with a recovery nozzle, a transfer interface, and a funnel valve are installed in sequence, the funnel valve is connected to a recovery pipeline, the recovery pipeline is connected to the cylinder body, and a funnel baffle is provided at the three-hole funnel.

9. The multi-faceted magnetorheological polishing apparatus according to claim 8, characterized in that: The magnetorheological fluid circulation module also includes a heat dissipation system, which includes a plurality of heat sinks arranged on one side of the cylinder body, a heat dissipation single tube is embedded in the groove of the heat sink, one end of the heat dissipation single tube is connected to the recovery pipe, and the other end is connected to the cylinder body, and a plurality of heat dissipation fans are arranged at the heat dissipation single tube; a temperature detection module is arranged at the recovery pipe for detecting the temperature of the magnetorheological fluid.

Images