CN115229653A - Efficient polishing device and method for single crystal optical fiber - Google Patents
Efficient polishing device and method for single crystal optical fiber Download PDFInfo
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- CN115229653A CN115229653A CN202210929431.0A CN202210929431A CN115229653A CN 115229653 A CN115229653 A CN 115229653A CN 202210929431 A CN202210929431 A CN 202210929431A CN 115229653 A CN115229653 A CN 115229653A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
- B24B29/06—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for elongated workpieces having uniform cross-section in one main direction
- B24B29/08—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for elongated workpieces having uniform cross-section in one main direction the cross-section being circular, e.g. tubes, wires, needles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
- B24B21/025—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces for travelling elongated stock, e.g. wire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/16—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces performing a reciprocating movement, e.g. during which the sense of rotation of the working-spindle is reversed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention belongs to the field of high-precision single crystal optical fiber polishing equipment, and particularly relates to a high-efficiency single crystal optical fiber polishing device and a method. The polishing belt has the characteristic of flexibility, is provided with an elastic pressurizing structure, and is not easy to cause surface damage to a workpiece. The abrasive particles in the polishing solution have wide attachment surface, remove the micro-convex peaks on the surface of the workpiece and have higher polishing efficiency. And the processed workpiece can rotate and axially move, so that the repeated track is avoided, the polishing is uniform, the polishing pressure is controllable, and the polishing effect is good.
Description
Technical Field
The invention belongs to the field of high-precision single crystal optical fiber polishing equipment, and particularly relates to a high-efficiency polishing device and method for a single crystal optical fiber.
Background
The single crystal fiber is a novel high-performance optical fiber material and has the advantages of high doping concentration of rare earth ions, good light transmission, high temperature resistance, high thermal conductivity, corrosion resistance, low Brillouin scattering coefficient and the like. The single crystal fiber is also called a crystal fiber, and is a single crystal having a fiber form. As the components are the same as those of the bulk single crystal, the physical and chemical properties of the single crystal fiber are consistent with those of the crystal material with the same components, and the single crystal fiber has the advantages of high thermal conductivity, wide transmission waveband, weak nonlinear effect and the like. Meanwhile, the single crystal optical fiber has the optical fiber form with high length-diameter ratio and high specific surface area, so that the single crystal optical fiber also has the characteristic of high optical fiber heat dissipation efficiency, and can realize optical transmission in a waveguide form by utilizing total reflection. The advantages of the bulk crystal and the optical fiber are realized, and the crystal fiber has huge application potential in the aspects of laser and sensing, so that the crystal fiber is used as the gain medium, and the crystal fiber is an effective method for breaking through the power bottleneck of a fiber laser and solving the problem of difficult heat dissipation of a high-power laser.
The single crystal optical fiber is used as a laser transmission material, a laser transmitter such as a YAG laser is mostly applied, and the surface quality has great influence on the light and heat propagation efficiency of the single crystal optical fiber. In the actual processing process, the most common optical fiber surface polishing method is a contact polishing method, namely, the optical fiber is fixedly clamped, free abrasive particles are directly contacted with the surface of an optical fiber material under the action of a flexible polishing tool, and the workpiece material is removed by utilizing the mechanical action and the chemical action of the abrasive particles, so that the processing method with high surface quality is obtained. However, this method has major limitations, mainly including: the single crystal optical fiber is slender and has a cantilever beam structure, and can be bent and deformed under the action of processing load, so that the optical fiber is easy to break.
The processing method of the polishing wheel consolidated abrasive is to uniformly mix abrasive particles or micro powder with a bonding agent, form a polishing wheel consolidated abrasive tool by adopting methods such as sintering, bonding and the like, and control the polishing wheel to rotate for grinding, thereby removing the cladding of the optical fiber. Such methods allow polishing of any length of fiber, with greater removal rates and reduced polishing times. The defects are that the grinding tool is easy to wear and affects the surface shape precision of a processed workpiece.
Arc discharge polishing is to melt the surface layer of a glass optical fiber by using high temperature generated by arc discharge, thereby effectively eliminating the roughness of the surface of the polished optical fiber and inhibiting large loss caused by microcracks or pits. However, the method needs a system for controlling the thickness and length of the optical fiber grinding by a set of high-precision positioning sensor, the precision needs to be controlled in the micron order, the price is high, the relative position of the optical fiber and the electrode and the temperature of the arc discharge need to be accurately controlled, and the device is complex.
The chemical corrosion of optical fiber is mainly to control the surface roughness by adjusting the action time of the optical fiber and corrosive solution, the temperature of heating solution, the flow rate of the corrosive solution, the depth of immersing the optical fiber into the solution, and the like. The method has low cost, does not need deep personnel operation of professional technology, can corrode a plurality of optical fibers at one time, but has poor surface quality after corrosion, more impurities and great difficulty in controlling chemical process parameters.
The above processing methods all have certain disadvantages, and therefore, it is necessary to develop a new polishing method suitable for a long and thin single crystal optical fiber with high quality, high efficiency and low cost.
The invention provides a device and a method for efficiently polishing a single crystal optical fiber. The abrasive particles in the polishing solution have wide attachment surface, remove the micro-convex peaks on the surface of the workpiece and have higher polishing efficiency. And the processed workpiece can rotate and axially move, so that the repeated track is avoided, the polishing is uniform, the polishing pressure is controllable, and the polishing effect is good.
Disclosure of Invention
In order to perfect the polishing process of the single crystal optical fiber, the invention provides the high-efficiency polishing device and the method of the single crystal optical fiber, which have higher processing efficiency and good processing consistency and are not easy to cause the fracture and the rupture of the processed surface.
A single crystal optical fiber high-efficiency polishing device comprises:
the polishing belt mechanism comprises a rack and a polishing disc, the polishing disc is arranged on the rack in a front-back sliding manner, and a plurality of positioning grooves for positioning and placing single crystal fibers are arranged in rows on the polishing disc;
the polishing belt mechanism comprises a polishing belt and a transmission assembly, the transmission assembly is used for driving the polishing belt to rotate circularly, and the polishing belt is of an annular flexible structure and is used for contacting with the single crystal optical fiber and driving the single crystal optical fiber to rotate; and
and the axial vibration mechanism is used for driving the polishing disc to drive the single crystal optical fiber to move back and forth in a reciprocating manner.
Furthermore, a plurality of liquid inlet channels are arranged on the polishing disc and used for realizing liquid inlet of the polishing liquid, so that the polishing liquid can reach the single crystal optical fiber.
Further, the inlet of the liquid inlet channel is arranged on the side part of the polishing disk, and the outlet of the liquid inlet channel is arranged on the top part of the polishing disk.
Furthermore, a guide rail is arranged on the machine frame, and the bottom of the polishing disk is connected with the guide rail in a sliding manner.
Further, the transmission assembly includes mounting panel, motor, action wheel and take-up pulley module, the motor sets up on the mounting panel, and it cooperates with the action wheel transmission, the take-up pulley module includes take-up pulley, connecting rod and first elastic component, connecting rod one end is rotated with the mounting panel and is connected, and the other end is connected with the take-up pulley, first elastic component both ends are connected with connecting rod and installation department respectively, the polishing area is around locating on action wheel and the take-up pulley.
Furthermore, the tensioning wheel modules are at least two groups and are respectively positioned at the left side and the right side of the polishing disk.
Further, the polishing device also comprises a loading mechanism which is used for extruding the polishing belt onto the single crystal optical fiber.
Furthermore, the loading mechanism comprises an upper pressure plate, a lower pressure plate and a second elastic part, the height of the upper pressure plate is adjustable, the lower pressure plate is connected to the lower end of the upper pressure plate through the second elastic part, and the second elastic part is used for pressing the lower pressure plate to the polishing belt.
Further, the axial vibration mechanism is an axial ultrasonic vibration mechanism; and a third elastic piece is arranged between the polishing disk and the rack in a matched manner, and the third elastic piece is configured to relieve the impact of the axial ultrasonic vibration mechanism on the polishing disk in the reciprocating vibration process of the polishing disk and help the polishing disk to reset.
The invention also provides a high-efficiency polishing method of the single crystal optical fiber, which is realized by adopting the high-efficiency polishing device of the single crystal optical fiber and comprises the following steps:
step 1: placing the single crystal optical fiber in a positioning groove of a polishing disk to enable the single crystal optical fiber to be in contact with a polishing belt;
and 2, step: starting a polishing belt mechanism, and driving the monocrystalline optical fiber to rotate by the polishing belt;
and step 3: starting an axial vibration mechanism, and driving the polishing disc and the single crystal optical fiber on the polishing disc to reciprocate back and forth by the axial vibration mechanism;
and 4, step 4: the prepared polishing solution is uniformly sprayed onto the polishing disk, and the polishing solution is adsorbed on the surface of the single crystal optical fiber and in the positioning groove through the rotation of the polishing belt, so that the micro-grinding of the micro-convex peak of the single crystal optical fiber by the abrasive particles is realized.
The invention has the beneficial effects that:
1) The device and the method can lead the single crystal optical fiber to rotate and move axially during polishing, avoid polishing track repetition and wide track envelope surface, and finally realize the polishing processing of the single crystal optical fiber with high precision and high consistency;
2) The device has simple structure and lower polishing cost;
3) The polishing belt is made of flexible material and is elastically pressurized, so that the surface damage such as cracking, breaking and the like of the surface of the single crystal optical fiber can not occur during polishing.
Drawings
FIG. 1 is a schematic structural diagram of a single crystal optical fiber polishing apparatus according to the present invention;
FIG. 2 is a schematic structural diagram of a polishing disk in an efficient polishing apparatus for single crystal optical fiber according to the present invention;
FIG. 3 is a schematic left-view structural diagram of a single-crystal optical fiber efficient polishing apparatus according to the present invention;
FIG. 4 is a microscopic view of the polishing process of the single crystal optical fiber according to the present invention;
FIG. 5 is a flow chart of a method for efficiently polishing a single crystal optical fiber according to the present invention.
In the figure: the polishing device comprises a mounting plate 1, a driving wheel 2, a polishing belt 3, a connecting rod 4, a tension wheel 5, an axial ultrasonic vibration mechanism 6, a guide rail 7, a sealing device 8, a frame 9, a single crystal optical fiber 10, an inlet 11, a polishing disk 12, a lower pressing plate 13, a positioning groove 14, a third elastic part 15, an ultrasonic amplitude transformer 16, an ultrasonic transducer 17, an ultrasonic generator 18, a micro-bump 19, abrasive particles 20, polishing liquid 21, an outlet 22, a first elastic part 23, an upper pressing plate 24 and a second elastic part 25.
Detailed Description
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
The invention will be further explained with reference to the drawings.
Referring to fig. 1-4, a single crystal optical fiber high efficiency polishing apparatus includes a polishing disk mechanism, a polishing tape mechanism and an axial vibration mechanism, the polishing tape mechanism includes a frame 9 and a polishing disk 12, the upper end of the frame 9 is provided with a guide rail 7, the polishing disk 12 is a cuboid hard alloy disk, the bottom is installed on the guide rail 7 of the frame 9 through a pulley in a front-back sliding manner, a plurality of positioning slots 14 for positioning and placing single crystal optical fibers 10 are arranged in rows on the polishing tape mechanism, the positioning slots 14 are preferably V-shaped slots, the polishing tape mechanism includes a polishing tape 3 and a transmission assembly, the transmission assembly is used for driving the polishing tape 3 to rotate circularly, the polishing tape 3 is an annular flexible structure, and is used for contacting the single crystal optical fibers 10 and driving the single crystal optical fibers 10 to rotate, and the vibration mechanism is used for driving the polishing disk 12 to drive the single crystal optical fibers 10 to move back and forth.
The surface of the polishing belt 3 has tension, is made of flexible materials such as polyurethane and rubber, has certain friction force, and can adsorb a large amount of abrasive particles in the polishing process, so that more particles in the polishing solution are attached to the surface of the single crystal optical fiber 10, and the polishing efficiency is improved. By utilizing the friction force existing on the surfaces of the polishing belt 3 and the single crystal optical fiber 10, the polishing belt 3 can drive the single crystal optical fiber 10 to rotate, so that the polishing effect is realized.
The height of the frame 9 can be adjusted, and the height can be adjusted through a lifter, a nut and screw pair and other equipment. After the single crystal optical fiber 10 is placed in the positioning groove 14, the polishing tape 3 can be brought into contact with the single crystal optical fiber 10 by adjusting the height of the frame 9.
With reference to fig. 2, the polishing plate 12 is provided with a plurality of liquid inlet channels, the liquid inlet channels are staggered with the positioning grooves 14, and the liquid inlet channels are used for feeding the polishing liquid so that the polishing liquid can reach the single crystal optical fiber 10. Specifically, the inlet 11 of the liquid inlet channel is disposed at the side of the polishing pad 12, and the outlet 22 is disposed at the top of the polishing pad 12.
Wherein, can set up the pan feeding pipe in the inlet channel, as the guide structure of polishing solution.
Continuing to refer to fig. 1, the transmission assembly includes mounting panel 1, motor, action wheel 2 and take-up pulley module, and the motor sets up on mounting panel 1, and it cooperates with action wheel 2 transmission, and the take-up pulley module includes take-up pulley 5, connecting rod 4 and first elastic component 23, and connecting rod 4 one end is rotated with mounting panel 1 and is connected, and the other end is connected with take-up pulley 5, and first elastic component 23 both ends are connected with connecting rod 4 and mounting panel 1 respectively, and polishing belt 3 is around locating on action wheel 2 and take-up pulley 5.
Specifically, there are two sets of tensioning wheel modules, which are located on the left and right sides of the polishing disc 12. And, the transmission assembly still includes a driven wheel, should follow driving wheel 2 symmetrical arrangement on mounting panel 1 with the driving wheel. The first elastic member 23 is preferably a spring, and may be a torsion spring, a tension spring, a spring plate, or the like.
The tensioning wheel module can adjust the relative positions of the tensioning wheel 5, the polishing belt 3 and the polishing disc 12, adjust the tension of the polishing belt 3 and further adjust the pressure of the polishing belt 3 on the single crystal optical fiber 10. The method comprises the following steps: when the first elastic element 23 is tensioned or compressed, the connecting rod 4 swings back and forth, one end of the connecting rod 4 is connected with the tension wheel 5, and the tension wheel 5 can swing around the connecting rod 4, so that the relative position between the tension wheel 5 and the polishing belt 3 is changed, and the tension of the tension wheel 5 on the polishing belt 3 is adjusted.
When the polishing belt mechanism works, the driving wheel 2 is controlled by the motor to rotate, so that the driven wheel, the tension wheel 5 and the polishing belt 3 are driven to rotate together, and relative speed exists between the driving wheel and the single crystal optical fiber 10. The friction force between the polishing belt 3 and the single crystal optical fiber 10 is utilized to drive the single crystal optical fiber 10 to rotate.
With continued reference to FIG. 1, the present invention further includes a loading mechanism for pressing the polishing tape 3 against the single crystal optical fiber 10. Specifically, the loading mechanism includes an upper pressing plate 24, a lower pressing plate 13 and a second elastic member 25, the upper pressing plate 24 is installed on the mounting plate 1 or the rack 9, the height of the upper pressing plate 24 is adjustable, and the upper pressing plate can be specifically adjusted by adopting a screw rod to drive the lifting and the like, the lower pressing plate 13 is connected to the lower end of the upper pressing plate 24 through the second elastic member 25, and the second elastic member 25 is used for pressing the lower pressing plate 13 to the polishing belt 3. The second elastic member 25 is preferably a spring, and may be a torsion spring, a tension spring, a spring plate, or the like.
It is understood that the loading pressure of the loading mechanism to the polishing belt 3 is given by adjusting the elevation of the upper platen 24, thereby changing the extension and contraction of the second elastic member 25.
With continued reference to fig. 3, a third elastic element 15 is cooperatively disposed between the polishing disk 12 and the frame 9, and the third elastic element 15 is configured to alleviate the impact of the axial ultrasonic vibration mechanism on the polishing disk 12 during the reciprocating vibration of the polishing disk 12, so as to help the polishing disk 12 to return. Meanwhile, the polishing track can be prevented from being repeated, and the effect of uniform polishing is achieved. Specifically, the third elastic element 15 is preferably a spring, and may also be a torsion spring, a tension spring, a spring plate, or the like.
Further referring to fig. 3, the axial vibration mechanism is fixedly connected to the polishing disk 12, preferably the axial ultrasonic vibration mechanism 6, and the structure thereof is a known technology, and includes a structure of an ultrasonic generator 18, an ultrasonic transducer 17, an ultrasonic horn 16, and the like, the ultrasonic generator 18 emits energy, the ultrasonic transducer 17 converts the energy into mechanical energy, so that the ultrasonic horn 16 and the third elastic member 15 vibrate in a reciprocating manner, the third elastic member 15 is fixedly connected to the polishing disk 12, so that the polishing disk 12 moves in an axial reciprocating manner, the single crystal fiber 10 can move in an axial reciprocating manner while rotating, and meanwhile, under the action of pressure, the abrasive particles 20 scrape the micro-protrusions 19 on the surface of the workpiece, and finally, the removal effect is achieved.
When the single crystal optical fiber polishing device works, the polishing solution 21 is sprayed onto the polishing belt 3 from the feeding pipe, and the polishing belt 3 rotates to drive the abrasive particles 20 to be distributed on the surface of the single crystal optical fiber 10. And starting the axial ultrasonic vibration mechanism, and enabling the polishing disc 12 to axially reciprocate, so that the single crystal optical fiber 10 can rotate and axially reciprocate to perform complex spatial motion, and the attached abrasive particles 20 remove micro convex peaks 19 on the surface of the single crystal optical fiber 10, thereby realizing efficient and high-quality polishing of the outer cylindrical surface of the single crystal optical fiber 10.
Referring to fig. 5, the present invention further provides a method for efficiently polishing a single crystal optical fiber, which is implemented by the above-mentioned apparatus for efficiently polishing a single crystal optical fiber, and comprises the following steps:
step 1: placing the single crystal optical fiber 10 in a positioning groove 14 of a polishing disk 12, and adjusting the height of a frame 9 to enable the single crystal optical fiber 10 to be in contact with a polishing belt 3;
step 2: starting a polishing belt mechanism, and driving the monocrystalline optical fiber 10 to rotate by the polishing belt 3;
and 3, step 3: starting an axial vibration mechanism, and driving the polishing disc 12 and the single crystal optical fiber 10 on the polishing disc to reciprocate back and forth by the axial vibration mechanism;
and 4, step 4: the prepared polishing solution 21 is uniformly sprayed onto the polishing disc 12 from the material inlet 11 at a certain speed, abrasive particles 20 are dispersed on the surface of the single crystal optical fiber 10 through the rotation of the polishing belt 3, the polishing solution 21 is adsorbed on the surface of the single crystal optical fiber 10 and in the positioning groove 14, the micro grinding of the abrasive particles 20 on the micro convex peaks of the material is realized, the surface efficient and high-quality polishing is finally realized, and waste materials can be discharged and collected from the bottom of the sealing device 8.
Wherein, the abrasive particles 20 in the polishing solution 21 are 0.05 or 0.5 μm of alumina or 10wt% -15 wt% of silica sol solution or diamond solution.
It should be noted that, during the processing, the height of the upper platen 24 is adjusted to change the expansion and contraction of the second elastic member 25, so that the lower platen 13 applies a certain pressure to the single crystal optical fiber 10 via the polishing tape 3.
Examples
Determining a basic flow for preparing the free polishing solution: first, al having an average particle diameter of 0.5 μm was added 2 O 3 Mixing the grinding material into the base solution, stirring uniformly, performing ultrasonic dispersion for 5min, and adding an ammonium salt dispersing agent into the polishing solution at a ratio of 10wt% to prevent the bottom of the alumina from depositing. And ultrasonically dispersing for 5min to obtain the polishing solution. And placing the prepared polishing solution in a magnetic stirrer to prevent abrasive particles from precipitating.
The diameter d of the processed single crystal optical fiber is =2mm, the length of a bus is 42mm, the speed of a guide wheel is W =10r/min, the power of an axial ultrasonic vibration mechanism is 100W, the amplitude is set to be 1mm, and the loading pressure is 5N-10N. The polyurethane polishing belt has the length of 450mm, the width of 44mm and the thickness of 2mm. The flow rate of the polishing liquid was set to 40ml/min.
Table 1 shows the processing results of the single crystal optical fibers in the examples. The results showed that after 60min of working, the surface roughness Ra obtained after polishing was reduced from 0.094 μm to 0.006 μm, and the roundness was reduced from 0.76 μm to 0.21. Mu.m.
TABLE 1 Pre-and post-polishing results
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A single crystal optical fiber high-efficiency polishing device is characterized by comprising:
the polishing belt mechanism comprises a rack and a polishing disc, the polishing disc is arranged on the rack in a front-back sliding manner, and a plurality of positioning grooves for positioning and placing single crystal fibers are arranged in rows on the polishing disc;
the polishing belt mechanism comprises a polishing belt and a transmission assembly, the transmission assembly is used for driving the polishing belt to rotate circularly, and the polishing belt is of an annular flexible structure and is used for contacting with the single crystal optical fiber and driving the single crystal optical fiber to rotate; and
and the axial vibration mechanism is used for driving the polishing disc to drive the single crystal optical fiber to move back and forth in a reciprocating manner.
2. A high-efficiency polishing device for single crystal optical fibers according to claim 1, wherein the polishing disk is provided with a plurality of liquid inlet channels, and the liquid inlet channels are used for realizing the liquid inlet of the polishing liquid, so that the polishing liquid can reach the single crystal optical fibers.
3. A high-efficiency polishing device for a single crystal optical fiber as recited in claim 2, wherein the inlet of said liquid inlet channel is disposed at the side of the polishing disk, and the outlet is disposed at the top of the polishing disk.
4. A high-efficiency polishing device for single crystal optical fibers as claimed in claim 1, wherein a guide rail is arranged on the frame, and the bottom of the polishing disk is slidably connected with the guide rail.
5. A high-efficiency polishing device for single crystal optical fibers according to claim 1, wherein the transmission assembly comprises a mounting plate, a motor, a driving wheel and a tensioning wheel module, the motor is disposed on the mounting plate and is in transmission fit with the driving wheel, the tensioning wheel module comprises a tensioning wheel, a connecting rod and a first elastic member, one end of the connecting rod is rotatably connected with the mounting plate, the other end of the connecting rod is connected with the tensioning wheel, two ends of the first elastic member are respectively connected with the connecting rod and the mounting portion, and the polishing belt is wound on the driving wheel and the tensioning wheel.
6. A high-efficiency polishing device for single crystal optical fiber as claimed in claim 5, wherein said at least two sets of tensioning wheel modules are respectively located at left and right sides of the polishing disk.
7. A high-efficiency polishing apparatus for a single crystal optical fiber as defined in claim 1, further comprising a loading mechanism for pressing the polishing tape against the single crystal optical fiber.
8. A high-efficiency polishing device for single crystal optical fibers as recited in claim 1, wherein said loading mechanism comprises an upper pressing plate, a lower pressing plate and a second elastic member, the height of said upper pressing plate is adjustable, said lower pressing plate is connected to the lower end of said upper pressing plate through said second elastic member, and said second elastic member is used for pressing said lower pressing plate toward the polishing belt.
9. A high-efficiency polishing device for a single crystal optical fiber according to claim 1, wherein said axial vibration mechanism is an axial ultrasonic vibration mechanism; and a third elastic piece is arranged between the polishing disk and the rack in a matched manner, and the third elastic piece is configured to relieve the impact of the axial ultrasonic vibration mechanism on the polishing disk in the reciprocating vibration process of the polishing disk and help the polishing disk to reset.
10. A method for efficiently polishing a single crystal optical fiber, which is realized by using the apparatus for efficiently polishing a single crystal optical fiber according to any one of claims 1 to 9, and which comprises the steps of:
step 1: placing the single crystal optical fiber in a positioning groove of a polishing disk to enable the single crystal optical fiber to be in contact with a polishing belt;
step 2: starting a polishing belt mechanism, and driving the monocrystalline optical fiber to rotate by the polishing belt;
and step 3: starting an axial vibration mechanism, and driving the polishing disc and the single crystal optical fiber on the polishing disc to reciprocate back and forth by the axial vibration mechanism;
and 4, step 4: the prepared polishing solution is uniformly sprayed onto the polishing disk, and the polishing solution is adsorbed on the surface of the single crystal optical fiber and in the positioning groove through the rotation of the polishing belt, so that the micro-grinding of the micro-convex peak of the single crystal optical fiber by the abrasive particles is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210929431.0A CN115229653B (en) | 2022-08-03 | 2022-08-03 | High-efficiency polishing device and method for single crystal optical fiber |
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| CN202210929431.0A CN115229653B (en) | 2022-08-03 | 2022-08-03 | High-efficiency polishing device and method for single crystal optical fiber |
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| CN115229653A true CN115229653A (en) | 2022-10-25 |
| CN115229653B CN115229653B (en) | 2023-07-14 |
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| CN202210929431.0A Active CN115229653B (en) | 2022-08-03 | 2022-08-03 | High-efficiency polishing device and method for single crystal optical fiber |
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Cited By (1)
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| CN116117644A (en) * | 2023-04-14 | 2023-05-16 | 吉林交通职业技术学院 | High-precision polishing device and method for profiling wheel belt |
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| US6220946B1 (en) * | 1998-02-13 | 2001-04-24 | Philip D. Arnold | Active polishing of rotatable article surfaces |
| DE10041925A1 (en) * | 2000-08-25 | 2002-03-21 | Adrian Riegel | Grinding process involves bringing workpiece and grinding agent into engagement with feed movement as well as vibrating movement which differs from feed direction |
| CN101903130A (en) * | 2007-10-16 | 2010-12-01 | 纳格尔机械及工具制造厂有限责任公司 | The equipment and the method that are used for the press device of cutting part and are used to polish the side face of cylindrical work part |
| CN105408061A (en) * | 2013-05-02 | 2016-03-16 | 马丁内吉有限公司 | A method for brushing at least one metal tubolar member and relevant brushing device |
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| CN113427389A (en) * | 2021-06-15 | 2021-09-24 | 浙江工业大学 | Cylindrical roller force rheological polishing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116117644A (en) * | 2023-04-14 | 2023-05-16 | 吉林交通职业技术学院 | High-precision polishing device and method for profiling wheel belt |
| CN116117644B (en) * | 2023-04-14 | 2023-11-21 | 吉林交通职业技术学院 | High-precision polishing device and method for profiling wheel belt |
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| CN115229653B (en) | 2023-07-14 |
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