CN217194661U

CN217194661U - High-precision high-efficiency ceramic ball magnetorheological polishing device

Info

Publication number: CN217194661U
Application number: CN202221132433.9U
Authority: CN
Inventors: 陈丙三; 魏松马; 郑城; 李春雨; 林福兴
Original assignee: Fujian University of Technology
Current assignee: Fujian University of Technology
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-08-16
Anticipated expiration: 2032-05-11

Abstract

The utility model relates to a high-efficient ceramic ball magnetic current of high accuracy becomes burnishing device, it includes: the device comprises a fixed table, a circular groove magnetic pole and a driving mechanism; the two ends of the circular groove magnetic pole are respectively provided with a sealing plate, magnetorheological polishing liquid is arranged in the circular groove magnetic pole, and the circular groove magnetic pole is arranged in the cavity of the fixed table and is magnetized by radiation; the driving mechanism comprises a screw, a limiting plate and a stepping motor, one end of one side of the fixed platform is provided with a bearing support, one end of the screw is rotatably arranged in the bearing support, and the other end of the screw is connected with an output shaft of the stepping motor; the limiting plate is arranged on the end face of the fixed table and provided with a plurality of limiting holes, and a thread block is arranged on one side of the limiting plate and is in threaded connection with the screw; the ceramic ball is arranged in the circular groove magnetic pole and limited in the limiting hole of the limiting plate; the stepping motor drives the limiting plate to do reciprocating motion, so that the ceramic balls roll in the circular groove magnetic poles, and the magnetorheological polishing liquid grinds and polishes the ceramic balls.

Description

High-precision high-efficiency ceramic ball magnetorheological polishing device

Technical Field

The utility model relates to a high accuracy spherical parts processing technology field, concretely relates to high-efficient ceramic ball magnetic current of high accuracy becomes burnishing device.

Background

The high-precision advanced ceramic has the characteristics of high strength, large elastic modulus, high temperature resistance, high pressure resistance, wear resistance, low thermal expansion coefficient, good thermal stability and chemical stability and the like, is used in a large amount in a ball bearing, and is a key part of the ball bearing. Meanwhile, the ceramic ball is one of the most widely applied structural ceramic parts, plays an important role in precision instruments and equipment such as a ball roundness measuring instrument, a gyroscope, a precision measuring instrument and the like, has large demand, and has a very important position in the aspects of aerospace, precision machinery, national defense and military, petrochemical industry, automobile manufacturing industry and the like.

However, the ceramic balls used in precision instruments have extremely high requirements on spherical deviation, ball diameter variation and surface roughness, and these parameters directly influence the technical indexes of the ball such as motion precision, working noise and service life, and further influence the performance of equipment and instruments. The surface defects such as the concave-convex surface, the cracks and the like of the ball body have great influence on the motion precision and the service life of the bearing.

Magnetorheological polishing (MRF) is a comprehensive technique of applying electromagnetic theory, hydrodynamics, analytical chemistry, etc. to optical surface processing. The magnetic rheological liquid is an intelligent material, and can realize reversible conversion of solid-liquid two phases within 1ms under the action of a magnetic field. The principle of the magnetorheological polishing solution is as follows: the magnetorheological fluid is a suspension consisting of magnetic particles, a base fluid and a stabilizer. The magnetorheological polishing technology is characterized in that a flexible small grinding head with a sticky and plastic behavior formed by the magnetorheological polishing liquid flowing in a gradient magnetic field has rapid relative motion with a workpiece, so that the surface of the workpiece is subjected to a great shearing force, and the surface material of the workpiece is removed, thereby achieving the polishing effect. However, the existing machining method for magnetorheological polishing has the problems of low grinding precision, complex mechanical structure, complex control and the like.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model provides a ceramic ball magnetic current becomes burnishing device that magnetic current becomes polishing efficiency height, polishing precision is high.

The utility model discloses a high-efficient ceramic ball magnetic current of high accuracy becomes burnishing device adopts following technical scheme: which comprises

The middle part of the fixed table is provided with a cavity with an upward opening;

the magnetic pole of the circular slot, its both ends have seal plates separately, there are magnetic rheological polishing solutions in, set up in cavity pocket of the fixed station, and by the radiation magnetization, the magnetic field direction points to the magnetic pole central axis of the circular slot;

the driving mechanism comprises a screw, a limiting plate and a stepping motor, wherein a bearing support is arranged at one end of one side of the fixed table, one end of the screw is rotatably arranged in the bearing support, and the other end of the screw is connected with an output shaft of the stepping motor; the bottom of the stepping motor is provided with an upright post; the limiting plate is arranged on the end face of the fixed table and is in sliding connection with the end face of the fixed table, a plurality of limiting holes are formed in the limiting plate corresponding to the central axis of the circular groove magnetic pole, a thread block is arranged on one side of the limiting plate, and the thread block is in threaded connection with the screw;

the ceramic ball is arranged in the circular groove magnetic pole and limited in the limiting hole of the limiting plate; the stepping motor drives the limiting plate to do reciprocating motion, so that the ceramic balls roll in the circular groove magnetic poles, and the magnetorheological polishing liquid grinds and polishes the ceramic balls.

The device further comprises a circulating mechanism, wherein the circulating mechanism comprises a peristaltic pump and a pipeline, a liquid inlet is formed in a sealing plate close to one end of the stepping motor, and a liquid outlet is formed in a sealing plate at the other end of the stepping motor; the liquid outlet is connected with one end of a pipeline, and the other end of the pipeline is connected with the liquid inlet through a peristaltic pump.

Further, the liquid outlet is arranged at the bottom of the sealing plate, and the liquid inlet is arranged at the top of the sealing plate.

Further, at least one side of the fixed station is provided with a sliding groove, the limiting plate corresponds to the sliding groove and extends a sliding rail to the sliding groove, and the sliding rail is connected with the sliding groove in a sliding mode.

Further, the terminal surface of fixed station is flushed with the terminal surface of circular slot magnetic pole.

Furthermore, the limiting holes are arranged at equal intervals.

Further, it still includes the workstation, the fixed station is established on the workstation, the stand is fixed on the workstation, supports step motor.

Further, fixed blocks are arranged on the periphery of the bottom of the fixed table and provided with pin holes, and the fixed blocks are connected with the workbench through pin connection.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the circular groove radiation magnetizing magnetic poles are adopted to enlarge the effective area of magnetorheological polishing, a plurality of groups of ceramic balls can be simultaneously installed in the limiting cavities, the screw of the driving mechanism drives the limiting plates to do reciprocating motion, and the plurality of groups of ceramic balls roll in the circular groove magnetic poles, so that the polishing efficiency of ceramic balls is improved, the ceramic balls are uniformly distributed on the outer surfaces of the ceramic balls, and the distribution uniformity of magnetorheological polishing liquid outside the magnetic poles is ensured; the distance between the ceramic balls is constant, and the transverse shearing force between the magnetorheological polishing liquid and the ceramic balls is uniform during polishing, so that the polishing precision of the ceramic balls is improved;

2. and a circulating mechanism is adopted to enable the magnetorheological polishing solution to form a circulating loop through a pipeline, so that the accumulation of the magnetorheological polishing solution formed by rolling of the ceramic balls is reduced, and the distribution uniformity of the magnetorheological polishing solution outside the magnetic poles is kept.

Drawings

The accompanying drawings, which are described herein to provide a further understanding of the application, are included in the following description:

fig. 1 is a schematic view of a circular slot magnetic pole structure according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a circular-slot magnetic pole arranged on a fixed table according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a limiting plate according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

Referring to one of fig. 1-5, the high-precision and high-efficiency ceramic ball magnetorheological polishing device comprises

A fixed table 1, wherein the middle part of the fixed table is provided with a cavity with an upward opening;

the magnetic pole 2 of circular slot, its both ends have

seal plates

21, 22 separately, there are magnetic rheological polishing solutions (not drawn) in, set up in the cavity pocket of the fixed station 1, and is magnetized by the radiation, the direction of the magnetic field points to the magnetic pole central axis of circular slot;

the driving mechanism comprises a screw 8, a limiting plate 7 and a stepping motor 5, one end of one side of the fixed platform 1 is provided with a bearing support 10, one end of the screw 8 is rotatably arranged in the bearing support 10, and the other end of the screw 8 is connected with an output shaft of the stepping motor 5; the bottom of the stepping motor 5 is provided with an upright post 4; the limiting plate 7 is arranged on the end face of the fixed table 1 and is in sliding connection with the end face of the fixed table 1, a plurality of limiting holes 7 are formed in the limiting plate 7 corresponding to the central axis of the circular groove magnetic pole, a thread block 703 is arranged on one side of the limiting plate 7, and the thread block 703 is in threaded connection with the screw 8;

the ceramic ball is arranged in the circular groove magnetic pole 2 and limited in the limiting hole 702 of the limiting plate 7, the stepping motor 5 drives the limiting plate 7 to do reciprocating motion, so that the ceramic ball rolls in the circular groove magnetic pole 2, and the magnetorheological polishing liquid grinds and polishes the ceramic ball body.

Further, the device also comprises a circulating mechanism, wherein the circulating mechanism comprises a peristaltic pump 3 and a pipeline 6, a liquid inlet 221 is formed in a sealing plate 22 close to one end of the stepping motor 5, and a liquid outlet 211 is formed in a sealing plate 21 at the other end of the stepping motor; the liquid outlet 211 is connected with one end of a pipeline 6, and the other end of the pipeline 6 is connected with a liquid inlet 221 through a peristaltic pump 3.

Further, the liquid outlet 211 is disposed at the bottom of the sealing plate 21, and the liquid inlet 22 is disposed at the top of the sealing plate 221.

Further, at least one side of the fixed station 1 is provided with a sliding chute 11, the limiting plate 7 corresponds to the sliding chute 11 and extends to the sliding rail 701, and the sliding rail 701 is connected with the sliding chute 11 in a sliding manner.

Further, the end face of the fixed table 1 is flush with the end face of the circular-slot magnetic pole 2.

Further, the limiting holes 702 are arranged at equal intervals.

Further, it still includes workstation 100, fixed station 1 is established on workstation 100, stand 4 is fixed on workstation 100, supports step motor 5.

Further, fixed blocks 9 are arranged on the periphery of the bottom of the fixed table 1, pin holes are formed in the fixed blocks 9, and the fixed blocks 9 are connected with the workbench 100 through pin connection.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The high-precision high-efficiency ceramic ball magnetorheological polishing device is characterized in that: which comprises

the driving mechanism comprises a screw, a limiting plate and a stepping motor, wherein one end of one side of the fixed platform is provided with a bearing support, one end of the screw is rotatably arranged in the bearing support, and the other end of the screw is connected with an output shaft of the stepping motor; the bottom of the stepping motor is provided with an upright post; the limiting plate is arranged on the end face of the fixed table and is in sliding connection with the end face of the fixed table, a plurality of limiting holes are formed in the limiting plate corresponding to the central axis of the circular groove magnetic pole, a thread block is arranged on one side of the limiting plate, and the thread block is in threaded connection with the screw;

2. The high-precision high-efficiency ceramic ball magnetorheological polishing device according to claim 1, wherein the polishing device comprises: the device also comprises a circulating mechanism, wherein the circulating mechanism comprises a peristaltic pump and a pipeline, a sealing plate close to one end of the stepping motor is provided with a liquid inlet, and a sealing plate at the other end of the stepping motor is provided with a liquid outlet; the liquid outlet is connected with one end of a pipeline, and the other end of the pipeline is connected with the liquid inlet through a peristaltic pump.

3. The high-precision high-efficiency ceramic ball magnetorheological polishing device according to claim 2, wherein the polishing device comprises: the liquid outlet is arranged at the bottom of the sealing plate, and the liquid inlet is arranged at the top of the sealing plate.

4. The high-precision high-efficiency ceramic ball magnetorheological polishing device according to claim 1, wherein the polishing device comprises: at least one side of the fixed platform is provided with a sliding groove, the limiting plate corresponds to the sliding groove and extends a sliding rail to the sliding groove, and the sliding rail is connected with the sliding groove in a sliding mode.

5. The high-precision high-efficiency ceramic ball magnetorheological polishing device according to claim 1, wherein the polishing device comprises: the end face of the fixed table is flush with the end face of the circular groove magnetic pole.

6. The high-precision high-efficiency ceramic ball magnetorheological polishing device according to claim 1, wherein the polishing device comprises: the limiting holes are arranged at equal intervals.

7. The high-precision high-efficiency ceramic ball magnetorheological polishing device according to claim 1, wherein the polishing device comprises: the device also comprises a workbench, wherein the fixed table is arranged on the workbench, and the stand column is fixed on the workbench and supports the stepping motor.

8. The high-precision high-efficiency ceramic ball magnetorheological polishing device according to claim 7, wherein the polishing device comprises: the fixed table is characterized in that fixed blocks are arranged on the periphery of the bottom of the fixed table and provided with pin holes, and the fixed blocks are connected with the working table through pin connection.