Magnetorheological polishing device for special-shaped part

Abstract

The magneto-rheological polishing device comprises a frame, a first placing plate, a second placing plate and a special-shaped waveguide piece, a transmission motor is fixedly installed on the outer surface of the left side of the frame, and a transmission lead screw is fixedly installed at the output end of the transmission motor. According to the magneto-rheological polishing device for the special-shaped part, the polishing assembly is arranged, the polishing head is driven to polish the interior of the special-shaped waveguide part, and magneto-rheological polishing liquid in the polishing head generates a magneto-rheological effect through a magnetic field, so that the magneto-rheological polishing liquid is hardened in the magnetic field to form viscoplastic fluid; the fluid generates large shearing force in a contact area of the polishing head and a workpiece, so that materials on the surface of the workpiece are removed, a plurality of magnets are installed in the polishing head and are alternately arranged in the south-north direction to form a magnet ring composed of eight magnet blocks, the polarities of the adjacent magnet blocks are opposite, and the N poles and the S poles are alternately arranged to form a magnet ring. Uniform distribution of magnetic force in the polishing process is ensured, and a stable magnetic field is generated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of special-shaped waveguide processing, in particular to a magnetorheological polishing device for special-shaped parts. BACKGROUND

[0002] Special-shaped waveguide is a kind of waveguide device with special structure and function, usually used for electromagnetic wave transmission and conversion, special-shaped waveguide can be designed according to the complex shape of specific application requirement, and the complex geometry makes special-shaped waveguide can realize the special electromagnetic wave transmission characteristics, such as multi-frequency point, wide bandwidth and compact mode conversion, polishing device is needed in its processing process to polish.

[0003] Due to the special structure of special-shaped waveguide, the traditional polishing method will produce uneven removal phenomenon in the polishing process, it is difficult to realize higher surface quality and material removal rate, and the magnetorheological polishing method is a non-contact polishing method, which polishes through the flexible flow of magnetorheological polishing liquid, avoids the direct contact between polishing head and workpiece, reduces the generation of surface scratches, microcracks and other defects, and can obtain excellent surface quality. At the same time, due to the special structure of the polished workpiece, special magnetic field arrangement is designed in the polishing head according to this structure, so as to realize the homogeneous polishing of special-shaped waveguide. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a magnetorheological polishing device for special-shaped parts, which can utilize magnetorheological effect for processing, and the polishing liquid can be recycled.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a magnetorheological polishing device for special-shaped parts, including frame, first placing plate, second placing plate and special-shaped waveguide, the left side outer surface of frame is fixedly installed with transmission motor, the output end of transmission motor is fixedly installed with transmission screw rod, the surface of transmission screw rod is connected with placing table, the top of second placing plate is provided with clamping assembly, the right side of frame is provided with placing block, the top of placing block is provided with polishing assembly, the right side of placing block is provided with polishing liquid circulation filtering assembly;

[0006] The polishing assembly includes a polishing motor, the polishing motor is fixedly installed on the top surface of the placing block, the output end of the polishing motor is fixedly installed with a polishing shaft, one end of the polishing shaft away from the polishing motor is fixedly installed with a polishing head, and eight magnets are bonded in the polishing head.

[0007] The polishing liquid circulating filter assembly includes a liquid storage tank fixedly installed on the right side surface of the placing block, a liquid pumping pump fixedly installed on the top of the liquid storage tank, a filter tank installed on the right side of the liquid storage tank, a first conveying pump fixedly installed on the top of the filter tank, a liquid pumping pipe installed on the right side of the first conveying pump, and a second conveying pump fixedly installed on the bottom of the filter tank.

[0008] Further, the inner bottom wall of the frame is provided with sliding rails, the placing table is slidingly installed with the sliding rails, the top of the placing table is fixedly installed with two first placing plates, the top of each of the two first placing plates is provided with a second placing plate, and the first placing plate and the second placing plate are provided with a lifting assembly.

[0009] Further, the lifting assembly includes two installation plates, each of the two installation plates is fixedly installed on the top surface of the first placing plate, the top of the first placing plate is fixedly installed with a fixing strip, and each of the two installation plates is fixedly installed with an electric push rod on the opposite side.

[0010] Further, each of the two electric push rods is fixedly installed with a hinged seat on the opposite side, each of the hinged seats is hingedly provided with a scissor arm at the back side, the top of each of the scissor arms is hingedly provided with a second placing plate, each of the two scissor arms is provided with a movable hole in the inside, and the two scissor arms are connected with a pin shaft through the movable hole.

[0011] Further, the clamping assembly includes a plurality of vertical rods, each of the two vertical rods is fixedly installed on the top of the second placing plate, each of the two vertical rods is fixedly installed with a horizontal plate on the top, the top of the horizontal plate is fixedly installed with a clamping cylinder, and the bottom of the clamping cylinder is fixedly installed with a fixed clamping block.

[0012] Further, the top of the liquid pumping pump is fixedly installed with a liquid conveying pipe, the other end of the liquid conveying pipe extends from the right side of the special-shaped waveguide to the inside of the special-shaped waveguide, the liquid pumping pump is connected with the liquid storage tank through a pipeline, the other end of the liquid pumping pipe extends from the left side of the special-shaped waveguide to the inside of the special-shaped waveguide, the inside of the filter tank is provided with a filter core and a filter screen, the first conveying pump is connected with the filter tank through a pipeline, the second conveying pump is connected with the filter tank through a pipeline, the second conveying pump is connected with the liquid storage tank through a pipeline, the top of each of the two second placing plates is fixedly installed with a limiting plate, and the inside of each of the two limiting plates is respectively provided with a liquid conveying pipe and a liquid pumping pipe.

[0013] Compared with the prior art, the technical scheme has the following beneficial effects:

[0014] 1. The magnetorheological polishing device for this irregularly shaped component, by setting up a polishing assembly and combining it with a polishing motor and polishing shaft, drives a polishing head to polish the interior of the irregularly shaped waveguide component. The magnetorheological polishing fluid filled inside the polishing head generates a magnetorheological effect under the action of an external magnetic field, causing the polishing fluid to rapidly harden in a gradient magnetic field, transforming into a viscoplastic fluid state. The magnetic particles in the magnetorheological polishing fluid can effectively hold the abrasive under the action of the magnetic field. The polishing head drives the movement of the magnetorheological fluid, removing material from the internal surface of the irregularly shaped waveguide component, improving surface quality and material removal rate.

[0015] 2. The magnetorheological polishing device for this irregularly shaped component features a polishing head designed to fit the unique geometric characteristics of the irregularly shaped waveguide component. Multiple magnets are bonded inside the polishing head, arranged alternately in a north-south direction to form multiple magnet rings. Each magnet ring consists of eight magnet blocks with opposite polarities (N and S poles alternate) to ensure uniform magnetic force distribution throughout the ring, creating a stable magnetic field. This setup enables the polishing head to generate a stable magnetic field, thereby forming a uniform, flexible polishing cluster during the polishing process, achieving homogeneous polishing of the irregularly shaped waveguide component's inner cavity. Attached Figure Description

[0016] Figure 1 This is a front view of the present utility model;

[0017] Figure 2 This is a side view of the clamping assembly of this utility model;

[0018] Figure 3 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the polishing head of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal magnet arrangement of the polishing head of this utility model;

[0021] Figure 6 This is a three-dimensional view of the frame of this utility model.

[0022] In the figure: 1, frame; 2, transmission motor; 3, transmission screw rod; 4, placing table; 5, first placing plate; 6, lifting assembly; 601, mounting plate; 602, fixed strip; 603, electric push rod; 604, hinged seat; 605, scissor arm; 7, second placing plate; 8, clamping assembly; 801, vertical rod; 802, cross plate; 803, clamping cylinder; 804, fixed clamping block; 9, placing block; 10, polishing assembly; 101, polishing motor; 102, polishing shaft; 103, polishing head; 104, magnet; 11, polishing liquid circulating filtering assembly; 111, liquid storage tank; 112, liquid pumping pump; 113, liquid conveying pipe; 114, first conveying pump; 115, liquid pumping pipe; 116, second conveying pump; 117, filtering box; 12, special-shaped waveguide. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-6 The special-shaped part magnetorheological polishing device in the embodiment comprises a frame 1, a first placing plate 5, a second placing plate 7 and a special-shaped waveguide 12. A transmission motor 2 is fixedly installed on the left outer surface of the frame 1. A transmission screw rod 3 is fixedly installed at the output end of the transmission motor 2. A placing table 4 is threadedly connected to the surface of the transmission screw rod 3. The top of the second placing plate 7 is provided with a clamping assembly 8. The right side of the frame 1 is provided with a placing block 9. The top of the placing block 9 is provided with a polishing assembly 10. The right side of the placing block 9 is provided with a polishing liquid circulating filtering assembly 11.

[0025] The polishing assembly 10 comprises a polishing motor 101. The polishing motor 101 is fixedly installed on the top surface of the placing block 9. A polishing shaft 102 is fixedly installed at the output end of the polishing motor 101. A polishing head 103 is fixedly installed at the end, away from the polishing motor 101, of the polishing shaft 102. Eight magnets 104 are adhesively connected in the polishing head 103.

[0026] The polishing liquid circulating filtering assembly 11 comprises a liquid storage tank 111. The liquid storage tank 111 is fixedly installed on the right side surface of the placing block 9. A liquid pumping pump 112 is fixedly installed at the top of the liquid storage tank 111. A filtering box 117 is installed on the right side of the liquid storage tank 111. A first conveying pump 114 is fixedly installed at the top of the filtering box 117. A liquid pumping pipe 115 is installed on the right side of the first conveying pump 114. A second conveying pump 116 is fixedly installed at the bottom of the filtering box 117.

[0027] As Figure 1 shown, by setting the transmission motor 2, slide rail, transmission screw 3 and placing table 4 and so on, in use, by starting the transmission motor 2, the transmission motor 2 drives the transmission screw 3 to rotate, and through the threaded connection with the placing table 4, it drives the placing table 4 to move stably in the horizontal direction, which facilitates the horizontal movement of the special waveguide 12 to the polishing site, and the setting of the slide rail increases the stability of the movement of the placing table 4.

[0028] As Figure 1 shown, by setting the lifting assembly 6, and the lifting assembly 6 includes mounting plate 601, fixed strip 602, electric push rod 603, hinged seat 604 and scissor arm 605, in use, by starting two electric push rods 603, the two electric push rods 603 drive the two hinged seats 604 to slide on the fixed strip 602, the two hinged seats 604 drive the two scissor arms 605 to rotate in the process of relative movement, in turn drive the second placing plate 7 to rise, so that it can move vertically, and then it is convenient to move the special waveguide 12 in the vertical direction to the designated place, by setting the movable hole and the pin shaft, thereby improving the stability of the rotation of the two scissor arms 605.

[0029] As Figure 1 and Figure 2 shown, by setting the clamping assembly 8, through the cooperation of the vertical rod 801, the horizontal plate 802, the clamping cylinder 803 and the fixed clamping block 804, in use, by starting the clamping cylinder 803 to drive the fixed clamping block 804 to clamp and fix the special waveguide 12, to prevent it from shifting during polishing.

[0030] As Figure 3 shown, in the inside of the filter box 117, from top to bottom, there are filter screen and filter core, and the filter core is nanofiber filter core, the filter screen is used to filter large particles, and the filter core is used to adsorb small particles.

[0031] As Figure 4 and Figure 5 shown, by setting the polishing head 103 and the magnet 104, and the polishing head 103 is customized according to the specific shape of the special waveguide 12, so as to match the unique geometry of the part, in the polishing head 103, a plurality of magnets 104 are installed, these magnets 104 are arranged alternately in the north-south direction into a plurality of magnet rings, each magnet ring is composed of eight magnets 104, and the magnetic polarity of adjacent magnets 104 is opposite, alternating N and S poles, so as to ensure the uniform distribution of magnetic force in the magnet ring, this design makes the polishing head 103 can generate a constant magnetic field, generating a uniformly distributed magnetorheological fluid film in the polishing process, and then efficiently completing the polishing work of the special waveguide 12.

[0032] When the magnetic fluid polishing liquid is circulated and filtered, the following steps are taken:

[0033] 1) First, start the first delivery pump 114, which draws the used polishing liquid inside the waveguide 12 to the inside of the filter box 117 through the suction pipe 115;

[0034] 2) Then the used polishing liquid will pass through the filter screen and filter element in turn, where the filter screen filters large particles and the filter element adsorbs small particles;

[0035] 3) Then start the second delivery pump 116, which draws the filtered polishing liquid out through the pipeline and into the liquid storage tank 111;

[0036] 4) Finally, start the suction pump 112, which draws the polishing liquid inside the liquid storage tank 111 through the pipeline, and then delivers it through the infusion tube 113 to the other side of the waveguide 12 and into the inside of the waveguide 12 to assist the polishing head 103 in polishing.

[0037] In summary, the magnetic fluid polishing device for the special-shaped part, by setting the polishing assembly 10, and using the cooperation of the polishing motor 101 and the polishing shaft 102, drives the polishing head 103 to polish the inside of the waveguide 12, the magnet 104 inside the polishing head 103 and the magnetic fluid polishing liquid produce a magnetic fluid effect under the action of the magnetic field, the magnetic fluid quickly hardens in the gradient magnetic field, forming a fluid with plasticity, this fluid produces a large shear force in the contact area between the polishing head 103 and the workpiece, thereby achieving micro-removal of the workpiece surface material and achieving high precision machining.

[0038] And the magnetic fluid polishing device for the special-shaped part, by setting the polishing head 103, the polishing head 103 is designed according to the shape of the waveguide 12 to adapt to its unique geometric characteristics, and a plurality of magnets 104 are bonded inside the polishing head 103, the plurality of magnets 104 are arranged alternately in the north-south direction, forming a plurality of magnet rings, each magnet ring is composed of eight magnet blocks, the polarity of adjacent magnet blocks is opposite, i.e. N and S poles are arranged alternately, to ensure that the magnetic force of the entire magnet ring is uniformly distributed, through the above setting, the polishing head 103 can generate a stable magnetic field, and then form a uniform magnetic fluid film during polishing, achieving homogeneous polishing of the waveguide 12.

[0039] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0040] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A magnetorheological finishing device for a profiled piece, comprising a frame (1), a first placement plate (5), a second placement plate (7) and a profiled waveguide piece (12), characterized in that: The left outer surface of the frame (1) is fixedly installed with a transmission motor (2), the output end of the transmission motor (2) is fixedly installed with a transmission lead screw (3), the surface of the transmission lead screw (3) is threadedly connected with a placing table (4), the top of the second placing plate (7) is provided with a clamping assembly (8), the right side of the frame (1) is provided with a placing block (9), the top of the placing block (9) is provided with a polishing assembly (10), and the right side of the placing block (9) is provided with a polishing liquid circulating and filtering assembly (11). The polishing assembly (10) comprises a polishing motor (101) fixedly installed on the top surface of the placing block (9), a polishing shaft (102) fixedly installed at the output end of the polishing motor (101), and a polishing head (103) fixedly installed at the end of the polishing shaft (102) away from the polishing motor (101), wherein the inside of the polishing head (103) is bonded with a plurality of magnets (104). The polishing liquid circulating and filtering assembly (11) comprises a liquid storage tank (111) fixedly installed on the right side surface of the placing block (9), a liquid pumping pump (112) fixedly installed at the top of the liquid storage tank (111), a filtering tank (117) installed on the right side of the liquid storage tank (111), a first conveying pump (114) fixedly installed at the top of the filtering tank (117), a liquid pumping pipe (115) installed on the right side of the first conveying pump (114), and a second conveying pump (116) fixedly installed at the bottom of the filtering tank (117).

2. The apparatus for magnetorheologically polishing a profiled part according to claim 1, characterized in that: The inner bottom wall of the frame (1) is provided with a sliding rail, the placing table (4) is slidingly installed with the sliding rail, the top of the placing table (4) is fixedly installed with two first placing plates (5), the top of each of the two first placing plates (5) is provided with a second placing plate (7), and the first placing plate (5) and the second placing plate (7) are provided with a lifting assembly (6).

3. The apparatus for magnetorheologically polishing a profiled part according to claim 2, characterized in that: The lifting assembly (6) comprises two mounting plates (601) fixedly installed on the top surface of the first placing plate (5), a fixed strip (602) fixedly installed at the top of the first placing plate (5), and an electric push rod (603) fixedly installed on the opposite side of each of the two mounting plates (601).

4. The apparatus for magnetorheologically polishing a profiled part according to claim 3, characterized in that: The opposite side of each of the two electric push rods (603) is fixedly installed with a hinged seat (604), the rear side of each of the two hinged seats (604) is hingedly connected with a scissor arm (605), the top of each of the plurality of scissor arms (605) is hingedly connected with a second placing plate (7), the inside of each two scissor arms (605) is provided with a movable hole, and the two scissor arms (605) are connected with a pin shaft through the movable hole.

5. The apparatus for magnetorheologically polishing a profiled part according to claim 1, characterized in that: The clamping assembly (8) comprises a plurality of vertical rods (801), two of which are fixedly installed on the top of the second placing plate (7), the top of each of the two vertical rods (801) is fixedly installed with a horizontal plate (802), the top of the horizontal plate (802) is fixedly installed with a clamping air cylinder (803), and the bottom of the clamping air cylinder (803) is fixedly installed with a fixed clamping block (804).

6. The apparatus for magnetorheologically polishing a profiled part according to claim 1, characterized in that: The top of the liquid pumping pump (112) is fixedly installed with a transfusion pipe (113), the other end of the transfusion pipe (113) extends to the inside of the special-shaped wave guide (12) from the right side thereof, the liquid pumping pump (112) is connected with the liquid storage tank (111) through a pipeline, the other end of the liquid pumping pipe (115) extends to the inside of the special-shaped wave guide (12) from the left side thereof, the inside of the filter box (117) is provided with a filter element and a filter screen, the first conveying pump (114) is connected with the filter box (117) through a pipeline, the second conveying pump (116) is connected with the filter box (117) through a pipeline, the second conveying pump (116) is connected with the liquid storage tank (111) through a pipeline, and the top of each of the two second placing plates (7) is fixedly installed with a limiting plate, and the inside of each of the two limiting plates is respectively provided with a transfusion pipe (113) and a liquid pumping pipe (115).

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