CN111915977B - Experimental platform for novel hydrodynamic polishing research - Google Patents
Experimental platform for novel hydrodynamic polishing research Download PDFInfo
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- CN111915977B CN111915977B CN202010921104.1A CN202010921104A CN111915977B CN 111915977 B CN111915977 B CN 111915977B CN 202010921104 A CN202010921104 A CN 202010921104A CN 111915977 B CN111915977 B CN 111915977B
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- 238000005498 polishing Methods 0.000 title claims abstract description 136
- 238000011160 research Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 88
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 13
- 238000013461 design Methods 0.000 abstract description 3
- 238000009530 blood pressure measurement Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to an experimental platform for novel hydrodynamic polishing research, which comprises a machine tool, a polishing roller, a feeding unit and a sensor. The polishing roller is arranged on the machine tool, and the feeding unit comprises a reciprocating feeding mechanism, a first micro-feeding mechanism and a second micro-feeding mechanism; the reciprocating feeding mechanism drives the workpiece to reciprocate for uniform polishing, and the displacement of the first micro feeding mechanism and the second micro feeding mechanism can accurately adjust the height difference and the distance between the clamped workpiece and the polishing roller to form a micro gap; the sensor comprises an eddy current displacement sensor and a pressure sensor, wherein the eddy current displacement sensor is used for detecting the distance between a workpiece and a polishing roller, and the pressure sensor is used for monitoring the dynamic pressure of polishing processing fluid in real time. The experimental platform has perfect design of each mechanism, is assisted by a displacement and pressure measurement and control system, has flexible and adjustable technological parameters, and can realize deep research on the mechanism and control of the hydrodynamic polishing waviness.
Description
Technical Field
The invention belongs to the field of polishing experimental devices, and particularly relates to an experimental platform for novel hydrodynamic polishing research.
Background
With the development of modern science and technology, the requirements on the surface of materials are also increasing. Polishing is one of the oldest surface quality improvement processes, a traditional contact polishing tool is in direct contact with a workpiece to be polished, and has considerable material removal rate, but the rigid contact between the traditional contact polishing tool and the workpiece enables polishing abrasive particles to easily leave scratches on the surface of the workpiece, and additional surface and subsurface defects are introduced, so that the requirements of various precision industries on the surface quality are difficult to meet.
In recent years, based on intensive researches on machining mechanisms, students at home and abroad put forward a series of novel non-contact polishing technologies combining the principles of electromagnetic field, fluid mechanics, three beams, chemical action and the like, and fluid dynamic pressure polishing is the most typical type, and is based on the theory of fluid dynamic pressure lubrication.
The prior research of fluid dynamic pressure polishing is mainly focused on the aspects of principle research, flow field pressure simulation measurement and the like, and the actual processing capability is not deeply explored. For hydrodynamic polishing processing similar to grinding wheel grinding, the surface waviness is an important index for evaluating the processing quality, and the generation mechanism is closely related to the precision of an experimental platform, a feeding mechanism and a process scheme. Therefore, a novel hydrodynamic polishing experimental platform with perfect feeding mechanism and complete functions is designed based on the flow lubrication principle so as to meet the research requirement of hydrodynamic polishing breaking through the processing limit.
Disclosure of Invention
Based on the above-mentioned drawbacks and deficiencies of the prior art, it is an object of the present invention to at least solve one or more of the above-mentioned problems of the prior art, in other words, to provide an experimental platform for new hydrodynamic polishing studies that meets one or more of the aforementioned needs.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
an experimental platform for new hydrodynamic polishing research comprises a machine tool, a polishing roller, a feeding unit and a sensor;
The polishing roller is arranged on the machine tool, the feeding unit comprises a reciprocating feeding mechanism, a first micro-feeding mechanism, a second micro-feeding mechanism and a clamping mechanism, the clamping mechanism is used for clamping a workpiece, the reciprocating feeding mechanism is arranged on the machine tool and drives the first micro-feeding mechanism, the first micro-feeding mechanism drives the second micro-feeding mechanism, the second micro-feeding mechanism drives the clamping mechanism, and the clamping mechanism is used for clamping the workpiece; the second micro-feeding mechanism is used for adjusting the distance between the workpiece and the polishing roller; the first micro-feeding mechanism is used for adjusting the height difference between the workpiece and the polishing roller; the reciprocating feeding mechanism is used for linking the workpiece to reciprocate so that the polishing roller carries out surface processing on the workpiece;
The sensor comprises an eddy current displacement sensor and a pressure sensor, wherein the eddy current displacement sensor is used for detecting the distance between a workpiece and a polishing roller, and the pressure sensor is used for monitoring the dynamic pressure of polishing processing fluid in real time; both sensors are mounted on the clamping mechanism.
In a preferred embodiment according to the present invention, the first micro-feeding mechanism comprises a first spiral differential head, a first fixed table, a first moving table, a first slide rail; the first fixed table top is fixedly connected with the reciprocating feeding mechanism, and the first movable table top and the first fixed table top are in sliding fit through a first sliding rail; the first spiral micro-head is fixed on the first fixed table top and props against the first movable table top to control the feeding displacement of the first movable table top; the second micro-feeding mechanism comprises a second spiral differential head, a second fixed table top, a second movable table top and a second sliding rail; the second fixed table top is fixedly connected with the first movable table top, and the second movable table top and the second fixed table top are in sliding fit through a second sliding rail; the second spiral micro-head is fixed on the second fixing
The fixed table top is propped against the second movable table top, and the second movable table top is controlled to move in the vertical direction.
In a preferred embodiment according to the invention, a return spring is arranged between the first stationary table top and the first movable table top and between the second stationary table top and the second movable table top.
In a preferred embodiment according to the invention, the reciprocating feed mechanism comprises a housing, a servo motor, a screw nut, a hollow spool, an i-shaped slide rail; the shell is arranged on the frame, the hollow sliding column is in sliding connection with the shell through an I-shaped sliding rail, and the I-shaped sliding rail is tangentially arranged in parallel with the edge of the polishing roller; the servo motor is fixed on the shell and connected with the screw rod, the screw rod is in threaded connection with a screw rod nut fixed with the hollow slide column, and the servo motor drives the hollow slide column to slide back and forth along the I-shaped slide rail through the screw rod and the screw rod nut; the first micro-feed mechanism is mounted on the hollow spool.
In a preferred embodiment according to the invention, the clamping mechanism comprises a web, a work piece carrier, a work piece disc, a locking screw; one end of the connecting plate is fixedly connected with the second micro-feeding mechanism, and the other end of the connecting plate is fixedly connected with the workpiece frame; the workpiece tray is in sliding fit with the workpiece frame through the T-shaped groove; one side of the workpiece frame is provided with a screw hole which transversely penetrates through the T-shaped groove, and a locking screw is screwed into the screw hole to tightly lock the workpiece disc and the workpiece frame; the center of the workpiece disc is provided with a workpiece mounting groove, and the workpiece disc is provided with a handheld part.
In a preferred embodiment according to the invention, the workpiece tray has a plurality of workpiece mounting slots arranged thereon.
In a preferred embodiment of the machine tool according to the invention, the machine tool comprises a frame, a polishing groove, a polishing roller holder and a spindle system, wherein the polishing groove is embedded in the frame, the spindle system is arranged in the frame, the output end of the spindle system penetrates through the bottom surface of the polishing groove to the inside of the polishing groove, and the polishing roller holder is connected with the output end of the spindle system and can be driven to rotate by the spindle system.
In a preferred embodiment according to the invention, the polishing trough has a drain slope, the drain slope being provided with a drain opening at the bottom.
In a preferred embodiment according to the invention, the polishing roller has a radius of 500-650mm and a thickness of 100-150mm.
In a preferred embodiment of the polishing roller according to the invention, the side surfaces of the polishing roller are uniformly provided with micro-groove structures, the depth of the micro-groove structures is 2-6mm, the central angle of the occupied arc length is 12-24 degrees, and the number of the micro-groove structures is 9-15.
Compared with the prior art, the invention has the beneficial effects that:
According to the experimental platform for the novel hydrodynamic polishing research, the reciprocating feeding mechanism drives the workpiece to stably reciprocate in the polishing process, so that each point on the surface of the workpiece is uniformly polished; the micro-feeding mechanism is matched with the eddy current displacement sensor, so that the precise feeding of the polishing gap can be realized, and the workpiece can be conveniently assembled, disassembled and positioned. The invention has perfect design of each mechanism, is assisted by a displacement and pressure measurement and control system, has flexible and adjustable technological parameters, and can realize deep research on the mechanism and control of the fluid dynamic pressure polishing waviness.
Drawings
FIG. 1 is a schematic structural diagram of an experimental platform for a novel hydrodynamic polishing study in accordance with a first embodiment of the present invention;
FIG. 2 is a machine tool assembly diagram of an experimental platform for new hydrodynamic polishing studies in accordance with a first embodiment of the present invention;
FIG. 3 is a schematic view showing the structure of a feeding unit of an experimental platform for new hydrodynamic polishing study according to the first embodiment of the present invention;
FIG. 4 is a schematic view showing the structure of a polishing roller of an experimental platform for a novel hydrodynamic polishing study according to the first embodiment of the present invention;
FIG. 5 is an assembly view of a reciprocating feed mechanism for a novel hydrodynamic polishing study of an experimental platform according to a first embodiment of the present invention;
FIG. 6 is an assembly view of a micro-feed mechanism for a novel hydrodynamic polishing study of an experimental platform according to a first embodiment of the present invention;
Fig. 7 is an assembly diagram of a clamping mechanism for a novel hydrodynamic polishing test platform according to a first embodiment of the invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
Example 1: as shown in fig. 1, an experimental platform for new hydrodynamic polishing research according to one embodiment of the present invention is composed of a machine tool 10, a polishing roller 20, a reciprocating feed mechanism 30, a micro feed mechanism 40, and a clamping mechanism 50, wherein the structure of the machine tool is as shown in fig. 2, a frame 11 as a main body in the machine tool is a hollow shell with a square shape and an upper square groove, and four feet are arranged at the bottom; the upper part is grooved and is provided with a polishing groove 12 in an embedded mode, the polishing groove is a square groove with the bottom, the middle and the periphery being high, the middle is provided with a shaft hole and the four corners are provided with liquid discharging holes, the top edge of the polishing groove protrudes outwards, and a screw penetrates through the protruding part to fixedly embed the polishing groove into the frame. The main shaft system is arranged in the frame, the output end of the main shaft system penetrates through the shaft hole of the polishing groove and is exposed outside, and mechanical sealing is adopted between the output end and the polishing groove to prevent polishing liquid from flowing into the main shaft system. The output end is provided with a polishing roller bracket 13 which is a disc with a slightly arc-shaped concave top surface and is provided with a vertical through positioning hole, four groups of positioning holes are arranged along the circumference of the bracket, and each group is provided with two groups along the radial direction.
The polishing roller is mounted on the polishing roller bracket, and is a hollow cylinder with 12 micro-groove structures 21 on the side surface, the cylinder is 600mm in diameter, the projection of the micro-groove to the horizontal direction is rectangular, the width is 24 degrees, and the depth is 2mm, as shown in fig. 4.
A reciprocating feeding mechanism 30 is arranged at one corner of the top of the frame, and the structure of the reciprocating feeding mechanism is shown in fig. 5, and comprises a shell 37, a servo motor 31, a lead screw 32, a lead screw nut 35, a hollow slide column 36, an I-shaped slide rail 33 and a side slide block 34; the shell is fixed on the upper surface of the rib plate through a screw, the servo motor is arranged along the direction parallel to the edge of the side frame and is provided with a mounting seat, and the servo motor is fixedly connected to the outer wall of one end of the shell through the mounting seat and the screw and penetrates into the shell; the hollow slide column penetrates into the shell from the other end part of the shell, one end of the screw rod is connected with a servo motor shaft through a coupler, the other end of the screw rod stretches into the hollow slide column, a screw rod nut is fixedly penetrated at the side, close to the screw rod, of the hollow slide column, the screw rod nut is matched with the screw rod, the hollow slide column is in sliding connection with the shell through an I-shaped slide rail, the two side sliding blocks prop against the hollow slide column and the inner side wall of the shell from two sides, and the micro-feeding structure is arranged at one end, exposed out of the shell, of the hollow slide column; the servo motor can be controlled by a servo motor PLC, and when the servo motor drives the screw rod to rotate, the screw rod nut can drive the hollow slide column to axially reciprocate along the screw rod, so that the micro-feeding mechanism is driven to tangentially reciprocate along the polishing roller.
The micro-feeding mechanism 40 has a structure as shown in fig. 6, and comprises a first spiral differential head 41, a first fixed table surface 42, a first movable table surface 44, a first sliding rail 43, a second spiral differential head 45, a second fixed table surface 46, a second guide rail 47 and a second movable table surface 48; the first movable table top and the first fixed table top are in sliding fit through a first sliding rail, the first sliding rail is arranged along the vertical direction, the first movable table top and the first fixed table top are provided with protruding parts with corresponding positions, the first spiral micro-head is parallel to the first sliding rail and penetrates through and is fixed on the protruding parts of the first fixed table top, the end part of the measuring rod is propped against the protruding parts of the first movable table top, the first spiral micro-head is rotated to drive the first movable table top to accurately micro-feed along the first sliding rail, and therefore the first movable table top vertically moves towards or away from the polishing roller; the second fixed table top is fixedly connected to the first movable table top through a screw, and the second fixed table top, the second movable table top, the second sliding rail and the second spiral differential head are combined in the same mode, wherein the difference is only that the second fixed table top is integrally rotated by 90 degrees, so that the second table top is driven to move in parallel to the polishing roller or away from the polishing roller when the second spiral differential head is rotated.
The integral combined assembly mode of the reciprocating feeding mechanism, the micro feeding mechanism and the clamping mechanism is shown in fig. 2, the structure of the clamping mechanism is shown in fig. 7, and the clamping mechanism 50 is arranged on a second movable table top and comprises a connecting plate 51, a workpiece frame 52, a workpiece disc 53, a workpiece mounting groove position 54 and a locking screw 55; the connecting plate is L-shaped, the front end is provided with an extending rib plate which is fixedly connected to the micro-feeding structure through a screw hole, the front end extends to the axis of the polishing roller, the middle part of the connecting plate is bent vertically downwards, and the rear end of the connecting plate is fixedly connected with the workpiece frame; the workpiece tray is in sliding fit with the workpiece frame through the T-shaped groove; one side of the workpiece frame is provided with a screw hole which transversely penetrates through the T-shaped groove, and a locking screw is screwed into the screw hole to enable the workpiece disc and the workpiece frame to be abutted and locked; the center of the workpiece disc is provided with a workpiece mounting groove, and the side surface of the workpiece disc at the opening of the T-shaped groove is also provided with a long handle protruding outwards, so that the workpiece disc is convenient to assemble and disassemble. When the reciprocating feeding mechanism and the micro-feeding mechanism move, the displacement can be transmitted to the clamping mechanism, so that the workpiece on the workpiece mounting groove is driven to reciprocate or micro-feed. The workpiece frame is also provided with two sensors, namely an eddy current displacement sensor, which can be matched with a micro-feeding mechanism to realize the precise control of the polishing gap, so that a dynamic pressure liquid film can be formed in a very small gap; the pressure sensor can monitor the dynamic pressure of polishing fluid in real time and is used for researching dynamic pressure and shearing characteristics of a flow field.
The following will describe the method of using the present invention in conjunction with the above-described structure:
The polishing steps of the workpiece are as follows:
Polishing preparation: fixing the workpiece on the workpiece mounting groove position 54 by paraffin, sliding the workpiece disc 53 into the workpiece frame 52 along the T-shaped groove, and then rotating the locking screw 55 to position the workpiece disc; pouring a specific polishing solution into the polishing groove 12 until the scale marks are appointed; in cooperation with the eddy current displacement sensor, the second spiral differential head 45 is rotated, and the second moving table surface moves forward, so that the workpiece is driven to approach the polishing roller 20 until the polishing gap between the workpiece and the polishing roller reaches the experimental requirement, the first spiral differential head 41 is rotated, and the clamping mechanism 50 is driven to move downward, so that the workpiece descends to a specified depth, and the polishing liquid is immersed.
Polishing: the polishing roller 20 rotates to enable polishing liquid to enter a convergence gap of the micro groove structure 21 at a certain speed to form a fluid dynamic pressure liquid film which is uniformly distributed, so that abrasive particles are driven to impact the surface of a workpiece, and the removal of a non-contact polishing material is realized; at the same time, the servo motor 31 starts to work to drive the screw rod 32 to rotate, and the hollow slide column 36 reciprocates along the side slide block 34 and the linear slide rail 33 through the screw rod nut 35. The micro-feeding mechanism 40 and the clamping mechanism 50 connected with the end of the hollow slide column 36 transmit the motion to the workpiece step by step, so that the workpiece can realize the reciprocating motion with a specified amplitude in the polishing process, and the uniform polishing of each point on the surface of the workpiece can be realized.
And (3) polishing post-treatment: after a certain period of polishing, the power source of the spindle system and the servo motor 31 are turned off. Reversely rotating the second spiral differentiating head 45 so that the work piece is away from the polishing roller 20, reversely rotating the first spiral differentiating head 41 so that the work piece floats out of the polishing liquid surface; opening a liquid outlet at the bottom of the polishing groove 12 to discharge the polishing liquid; after the locking screw 55 is unscrewed, the workpiece disc 53 is taken out; the workpiece tray 53 is heated, and the polished workpiece is taken out.
In the polishing process, the thickness of the micro gap is precisely controlled by matching an eddy current displacement sensor arranged on the workpiece frame with a micro feeding mechanism; and the dynamic pressure of polishing fluid is monitored in real time through a pressure sensor, the dynamic pressure and shearing characteristics of a fluid dynamic polishing flow field are researched, and further theoretical basis is provided for controlling polishing waviness.
Notably, are: the polishing roller and the micro groove structure parameters on the polishing roller selected by the experimental platform for the novel hydrodynamic polishing research are used for rough polishing piece processing with more important material removal rate, and the shape of the micro groove structure can also adopt different combination modes of trapezium, rectangle and arc according to the size and processing requirements of a workpiece. Under other practical application scenes, the parameters of the polishing roller can be selected differently on the premise of conforming to the thought of the invention, for example, for processing rough polished parts, namely, for emphasizing the material removal rate, a polishing roller with a rectangular micro-groove structure with the thickness of more than 600mm and the structure size (the quantity x depth x width) of the micro-groove are selected: 12x 2mm x24 °; for processing the fine polishing piece, namely focusing on removing uniformity, controlling waviness, selecting a polishing roller with a trapezoid or arc-shaped micro-groove structure below 600mm and the structure size (the quantity x depth x width) of the micro-groove: 15x 6mm x 12.
The gap range during polishing is 1-100 wires, so that a dynamic pressure liquid film can be formed in a very small gap.
In the selection of the polishing solution, the polishing solution is of polycrystalline diamond, amorphous silicon dioxide, silicon carbide and the like; the viscosity of the polishing solution can be adjusted to 10-100cps by a thickener or a concentration parameter, the specific selection parameter is mainly determined according to the parameter of a workpiece to be polished, silicon carbide is selected by glass, diamond is selected by metal, and the like, abrasive particles with the thickness of 1 mu m and above are selected by the same emphasis on material removal, the processing uniformity is emphasized, the waviness is controlled, and the abrasive particles with the thickness of 100nm and below are selected. The spindle speed can also be selected to be a certain value from 0rpm to 3000rpm according to different specific processing requirements and additional runout errors.
Example 2: in another embodiment of the experimental platform for the novel hydrodynamic polishing research, a right-angle rib plate is arranged at one corner of the top of the frame 11, the reciprocating feeding mechanism is arranged on the right-angle rib plate, the structural design is convenient for the overhanging installation of the reciprocating feeding mechanism, and the frame surface space is reasonably utilized.
Other structures can be referred to embodiment 1.
Example 3: in another embodiment of the experimental platform for the novel hydrodynamic polishing research, a reset spring arranged along the corresponding sliding rail direction is arranged between the movable table top and the fixed table top in the micro-feeding mechanism, and two ends of the reset spring are respectively propped against the inner walls of the movable table top and the fixed table top, so that thrust can be provided when the spiral micro-head is reversed, and the reset can be responded quickly.
Other structures can be referred to embodiment 1.
Example 4: in another embodiment of the experimental platform for the novel hydrodynamic polishing research, the length of the workpiece disc close to the surface of the polishing roller is lengthened, the back surface of the workpiece disc is inserted into the workpiece frame through a T-shaped groove, and a plurality of workpiece mounting grooves are horizontally arranged close to the surface of the polishing roller, so that the simultaneous polishing of a plurality of workpieces and the hydrodynamic polishing research thereof can be realized.
Other structures can be referred to embodiment 1.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is only illustrative of the preferred embodiments and principles of the present invention, and changes in specific embodiments will occur to those skilled in the art upon consideration of the teachings provided herein, and such changes are intended to be included within the scope of the invention as defined by the claims.
Claims (6)
1. An experimental platform for new hydrodynamic polishing research comprises a machine tool, a polishing roller, a feeding unit and a sensor;
The polishing roller is arranged on the machine tool, the feeding unit comprises a reciprocating feeding mechanism, a first micro-feeding mechanism, a second micro-feeding mechanism and a clamping mechanism, the clamping mechanism is used for clamping a workpiece, the reciprocating feeding mechanism is arranged on the machine tool and drives the first micro-feeding mechanism, the first micro-feeding mechanism drives the second micro-feeding mechanism, the second micro-feeding mechanism drives the clamping mechanism, and the clamping mechanism is used for clamping the workpiece; the second micro-feeding mechanism is used for adjusting the distance between the workpiece and the polishing roller; the first micro-feeding mechanism is used for adjusting the height difference between the workpiece and the polishing roller; the reciprocating feeding mechanism is used for linking the workpiece to reciprocate so that the polishing roller carries out surface processing on the workpiece;
the sensor comprises an eddy current displacement sensor and a pressure sensor, wherein the eddy current displacement sensor is used for detecting the distance between a workpiece and a polishing roller, and the pressure sensor is used for monitoring the dynamic pressure of polishing processing fluid in real time; both sensors are mounted on the clamping mechanism;
The first micro-feeding mechanism comprises a first spiral differential head, a first fixed table top, a first movable table top and a first sliding rail; the first fixed table top is fixedly connected with the reciprocating feeding mechanism, and the first movable table top and the first fixed table top are in sliding fit through a first sliding rail; the first spiral micro-head is fixed on the first fixed table top and props against the first movable table top to control the feeding displacement of the first movable table top; the second micro-feeding mechanism comprises a second spiral differential head, a second fixed table top, a second movable table top and a second sliding rail; the second fixed table top is fixedly connected with the first movable table top, and the second movable table top and the second fixed table top are in sliding fit through a second sliding rail; the second spiral micro-head is fixed on the second fixed table top and is propped against the second movable table top to control the second movable table top to displace in the vertical direction;
The reciprocating feeding mechanism comprises a shell, a servo motor, a screw rod nut, a hollow slide column and an I-shaped slide rail; the shell is arranged on the frame, the hollow sliding column is in sliding connection with the shell through an I-shaped sliding rail, and the I-shaped sliding rail is tangentially arranged in parallel with the edge of the polishing roller; the servo motor is fixed on the shell and connected with the screw rod, the screw rod is in threaded connection with a screw rod nut fixed with the hollow slide column, and the servo motor drives the hollow slide column to slide back and forth along the I-shaped slide rail through the screw rod and the screw rod nut; the first micro-feeding mechanism is arranged on the hollow sliding column;
The clamping mechanism comprises a connecting plate, a workpiece frame, a workpiece disc and a locking screw; one end of the connecting plate is fixedly connected with the second micro-feeding mechanism, and the other end of the connecting plate is fixedly connected with the workpiece frame; the workpiece tray is in sliding fit with the workpiece frame through the T-shaped groove; one side of the workpiece frame is provided with a screw hole which transversely penetrates through the T-shaped groove, and a locking screw is screwed into the screw hole to tightly lock the workpiece disc and the workpiece frame; the center of the workpiece disc is provided with a workpiece mounting groove, and the workpiece disc is provided with a handheld part;
the machine tool comprises a frame, a polishing groove, a polishing roller bracket and a spindle system, wherein the polishing groove is embedded in the frame, the spindle system is arranged in the frame, the output end of the spindle system penetrates through the bottom surface of the polishing groove to the inside of the polishing groove, and the polishing roller bracket is connected with the output end of the spindle system and can be driven to rotate by the spindle system.
2. An experimental platform for a novel hydrodynamic polishing study as claimed in claim 1 wherein return springs are provided between the first stationary platen and the first movable platen and between the second stationary platen and the second movable platen.
3. An experimental bench for use in novel hydrodynamic polishing studies as claimed in claim 1 wherein said workpiece tray has a plurality of workpiece mounting slots disposed thereon.
4. The experimental platform for the dynamic pressure polishing research of novel fluid according to claim 1, wherein the polishing groove is provided with a liquid discharge slope, and a liquid discharge port is arranged at the lower part of the liquid discharge slope.
5. An experimental bench for use in novel hydrodynamic polishing studies as claimed in claim 1, wherein the polishing roller has a radius of 500-650mm and a thickness of 100-150mm.
6. The experimental platform for the novel hydrodynamic polishing research of claim 1, wherein micro groove structures are uniformly distributed on the side surface of the polishing roller, the depth of the micro groove structures is 2-6mm, the central angle of the occupied arc length is 12-24 degrees, and the number of the micro groove structures is 9-15.
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| CN202010921104.1A CN111915977B (en) | 2020-09-04 | 2020-09-04 | Experimental platform for novel hydrodynamic polishing research |
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| CN202010921104.1A CN111915977B (en) | 2020-09-04 | 2020-09-04 | Experimental platform for novel hydrodynamic polishing research |
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| CN111915977B true CN111915977B (en) | 2024-05-17 |
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| CN113021163A (en) * | 2021-03-09 | 2021-06-25 | 浙江工业大学 | Detachable linear hydrodynamic pressure polishing roller and polishing device comprising same |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201283534Y (en) * | 2008-09-03 | 2009-08-05 | 长春理工大学 | Numerical control polishing machine tool |
| WO2013168444A1 (en) * | 2012-05-07 | 2013-11-14 | 信越半導体株式会社 | Circumferential polishing device for disc-shaped workpieces |
| CN203317201U (en) * | 2013-06-18 | 2013-12-04 | 浙江工业大学 | Dynamical pressure floating polishing device |
| CN204188474U (en) * | 2014-09-25 | 2015-03-04 | 吉林大学 | Micro-nano impression/the scarification tester of original position |
| CN205342756U (en) * | 2015-12-09 | 2016-06-29 | 浙江工业大学 | Controllable liquid hydrodynamic float burnishing device in fluid border |
| CN107932304A (en) * | 2017-11-06 | 2018-04-20 | 浙江工业大学 | A kind of grinding and polishing processing method that can realize variable speed |
| DE212018000088U1 (en) * | 2018-05-17 | 2019-05-17 | Kunshan Hengda Precision Machinery Industry Co., Ltd. | Fully automatic polishing machine for a light guide plate |
| CN110712110A (en) * | 2019-11-13 | 2020-01-21 | 浙江工业大学 | Polishing roller for linear hydraulic polishing |
| CN110744431A (en) * | 2019-11-18 | 2020-02-04 | 浙江工业大学 | Pressure detection system for linear hydraulic pressure polishing device |
| CN110744430A (en) * | 2019-11-13 | 2020-02-04 | 浙江工业大学 | Bidirectional-feeding linear hydraulic polishing device |
| WO2020088010A1 (en) * | 2019-03-30 | 2020-05-07 | 横店集团英洛华电气有限公司 | Gear polishing apparatus |
| CN111451918A (en) * | 2020-05-18 | 2020-07-28 | 浙江工业大学 | Non-contact polishing device |
| CN213123522U (en) * | 2020-09-04 | 2021-05-04 | 浙江工业大学 | Experimental platform for novel fluid dynamic pressure polishing research |
-
2020
- 2020-09-04 CN CN202010921104.1A patent/CN111915977B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201283534Y (en) * | 2008-09-03 | 2009-08-05 | 长春理工大学 | Numerical control polishing machine tool |
| WO2013168444A1 (en) * | 2012-05-07 | 2013-11-14 | 信越半導体株式会社 | Circumferential polishing device for disc-shaped workpieces |
| CN203317201U (en) * | 2013-06-18 | 2013-12-04 | 浙江工业大学 | Dynamical pressure floating polishing device |
| CN204188474U (en) * | 2014-09-25 | 2015-03-04 | 吉林大学 | Micro-nano impression/the scarification tester of original position |
| CN205342756U (en) * | 2015-12-09 | 2016-06-29 | 浙江工业大学 | Controllable liquid hydrodynamic float burnishing device in fluid border |
| CN107932304A (en) * | 2017-11-06 | 2018-04-20 | 浙江工业大学 | A kind of grinding and polishing processing method that can realize variable speed |
| DE212018000088U1 (en) * | 2018-05-17 | 2019-05-17 | Kunshan Hengda Precision Machinery Industry Co., Ltd. | Fully automatic polishing machine for a light guide plate |
| WO2020088010A1 (en) * | 2019-03-30 | 2020-05-07 | 横店集团英洛华电气有限公司 | Gear polishing apparatus |
| CN110712110A (en) * | 2019-11-13 | 2020-01-21 | 浙江工业大学 | Polishing roller for linear hydraulic polishing |
| CN110744430A (en) * | 2019-11-13 | 2020-02-04 | 浙江工业大学 | Bidirectional-feeding linear hydraulic polishing device |
| CN110744431A (en) * | 2019-11-18 | 2020-02-04 | 浙江工业大学 | Pressure detection system for linear hydraulic pressure polishing device |
| CN111451918A (en) * | 2020-05-18 | 2020-07-28 | 浙江工业大学 | Non-contact polishing device |
| CN213123522U (en) * | 2020-09-04 | 2021-05-04 | 浙江工业大学 | Experimental platform for novel fluid dynamic pressure polishing research |
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