CN203650137U - Magneto-rheological polishing device for inner surfaces of ceramic pipes - Google Patents
Magneto-rheological polishing device for inner surfaces of ceramic pipes Download PDFInfo
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- CN203650137U CN203650137U CN201320837577.9U CN201320837577U CN203650137U CN 203650137 U CN203650137 U CN 203650137U CN 201320837577 U CN201320837577 U CN 201320837577U CN 203650137 U CN203650137 U CN 203650137U
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Abstract
The utility model discloses a magneto-rheological polishing device for the inner surfaces of ceramic pipes. The magneto-rheological polishing device comprises a lower cover plate, a lower template, a middle template, an upper template, an upper cover plate, the ceramic pipes, a magneto-rheological fluid and a coil winding, wherein the lower cover plate is arranged on a bottom seat of a fluid polishing machine and hermetically butted with the bottom seat of the fluid polishing machine; the lower template is assembled on the lower cover plate; the middle template is assembled on the lower template; middle template magnetic material holes are uniformly distributed in the middle template; the plurality of ceramic pipes can be assembled in each middle template magnetic material hole; a sandwich structure is arranged on the outer side of the circumference of the middle template; the coil winding is arranged in the sandwich structure and connected with an external controller through a winding lead wire; the upper template is assembled on the middle template; the upper cover plate is assembled on the upper template; both the upper cover plate and the lower cover plate are hermetically butted with a top seat and the bottom seat of the fluid polishing machine. The magneto-rheological polishing device can be used for performing the large-batch polishing operation, and is simple, convenient, low in labor intensity, high in production efficiency and excellent in polishing precision.
Description
Technical field
The utility model relates to superhard wear ceramic part polishing technology field, is specifically related to a kind of earthenware fluid polishing equipment, particularly the magnetorheological magnetic burnishing device of a kind of earthenware inner surface.
Background technology
Along with the development of structural ceramics technology, high-tech increases year by year to the demand of superhard wear ceramic part, and quality improves constantly; Client requires more and more higher to the surfaces externally and internally fineness of hard ceramic shaped article parts, particularly pipe fitting, surface quality must further improve to meet people's needs in ultra-hard abrasive material manufacturing enterprise.
Technique of Magnetorheological Finishing is a kind of novel part grinding and polishing processing method, it combines electromagnetism, hydrodynamics, analytical chemistry theory, the characteristic of utilizing the solid liquid phase of Magnetorheologicai polishing liquid in magnetic field mutually to transform, control in real time by controlling shear yield stress and the local shape of external magnetic field to Magnetorheologicai polishing liquid, create a flexible polishing mould that can match with processed component surface, realize grinding, color-buffing finish processing to structural materials such as ceramic parts.It is stable that this technology has the function of removal, and sub-surface damage is little, the high remarkable advantage that waits of polishing precision.
At present domestic have many research institutes to be studied it, as Tsing-Hua University's (Chinese patent 03153996.3, denomination of invention: magnetic rheologic polishing head in electromagnetic mode), Xi'an Technological University's (Chinese patent 200610043079.1, denomination of invention: magnetic rheologic flexible, fine grinding, polishing equipment and method), the National University of Defense technology's (Chinese patent 200810030898.1, denomination of invention: for the magnetorheological finishing device of aperture aspherical optical element), Xiamen University's (Chinese patent 200610037426.X, denomination of invention: polishing wheel with parameter adjustable type magnetic rheology).There is common shortcoming in existing Technique of Magnetorheological Finishing: 1) the polishing vestige in territory, polishing contact area is orderly striated, has increased workpiece surface roughness; 2) lack effective technological means for the polishing of inner surface of pipe fitting in parts.
The endoporus polishing of hard ceramic pipe fitting can strengthen corrosion resistance and wearability, reduces running resistance, has reduced because part overload cracks and the danger that comes off etc.In order to obtain minute surface level ceramic part surface, follow-up polishing shaping processing method and technology become requisite important process; The polishing of inner holes of ceramic tubes at present is mainly completed by manual operations and machine glazed finish, not only efficiency low (used time accounts for the 40%-50% of whole parts manufacturing time), and labour intensity is large, and is difficult to ensure surface accuracy and stable polishing quality.In view of existing polishing mode efficiency is low, quality is low and the shortcoming of high in cost of production aspect, research, for efficient, great surface quality finishing method and the device in batches of inner holes of ceramic tubes polishing, has great importance for the manufacture efficiency and the quality that improve superhard wear pottery pipe fitting.
In prior art, conventional machinery finishing method and device have polishing wheel, buff spindle and buffing wheel, ultrasonic polishing, ultrasonic wave-electrochemical polish etc., and labour intensity is large, and polishing efficiency is low; The defects such as the surface accuracy of component surface and stable polishing quality.
Utility model content
For solving above-mentioned routine techniques method and the magnetic converting technique method defect problem on superhard wear pottery pipe fitting grinding and polishing, the utility model provides a kind of earthenware inner surface magnetorheological finishing device, utilize magnetic flow liquid, design is with the device of the batch polishing inner holes of ceramic tubes of controllable magnetic field coil windings, realize simple to operate, labour intensity is low, and polishing efficiency is high, promotes polishing precision and the surface quality of earthenware finished product simultaneously.
For achieving the above object, the technical solution of the utility model is as follows: a kind of earthenware inner surface magnetorheological finishing device, comprise lower cover, lower bolster, middle template, cope match-plate pattern, upper cover plate, earthenware, magnetic flow liquid and coil windings, and it is characterized in that:
Described a kind of earthenware inner surface magnetorheological finishing device, referred to as magnetic burnishing device; Its assemble sequence is that lower cover is placed on the base of fluid polishing machine, and with lower cover boss, described lower cover boss docks with fluid polishing machine base seal below described lower cover; On described lower cover, assemble lower bolster, below described lower bolster with boss dock with the concave station coupling sealing on lower cover; Template in assembling on described lower bolster, described middle template has evenly been abound with middle mould magnetic material hole, and middle mould magnetic material assembles polished ceramic pipe fitting in hole, and multiple earthenwares can be assembled in each middle mould magnetic material hole.
Described middle template periphery is provided with sandwich, in described interlayer, be provided with coil windings, described coil windings is connected with peripheral control unit by winding leads, by current strength and the change frequency of described controller regulating winding winding, after coil windings energising, at the inner electric field that forms of middle template, its electric field magnetic line of force direction and middle template axially parallel, so just make the magnetized particles in magnetic flow liquid flow in the axial viscous cylindricality that forms, thereby force unmagnetized polishing particle set in the magnetic flow liquid interior surface layers at earthenware, and increase viscosity and the earthenware shearing force radially of overall magnetic flow liquid, thereby superhard wear pottery inner surface of pipe fitting is realized and being ground and polishing action.
Fit on template in described middle template, fit on cover plate on described cope match-plate pattern, on upper cover plate with the sealing of boss and fluid polishing machine footstock dock; Described lower cover and upper cover plate are provided with lower cover plate hole and upper cover plate hole, all communicate with fluid polishing machine, magnetic flow liquid is entered in the earthenware internal diameter in magnetic burnishing device by force feed by described through hole, under the polishing particle effect of fluid polishing machine pressure, fluid velocity, two-way flow, the abrasive material in magnetic flow liquid is implemented polishing operation to inner holes of ceramic tubes.
Described middle template bottom with boss dock with the concave station coupling sealing on lower bolster; Described middle template top with boss dock with the concave station coupling sealing on cope match-plate pattern; On described lower bolster, be provided with two locating holes, the left hole of counterdie and the right hole of counterdie, two described locating hole aperture differences, described middle template top and left and right, bottom are respectively respectively arranged with two alignment pins, and the position of middle mould left lower pin, middle mould left upper pin and size are mated with position and the size in the left hole of counterdie and the left hole of patrix; Position and the size of middle mould bottom right pin, middle mould upper right pin are mated with position and the size in the right hole of counterdie and the right hole of patrix; The alignment pin matching locking assembling on described cope match-plate pattern, lower bolster locating hole and middle mould, thereby the rigging position of definite cope match-plate pattern, middle template and lower bolster, guarantee that three magnetic material holes alignment in template are clear and coherent.
In described lower bolster, middle template and cope match-plate pattern, be provided with the magnetic material hole corresponding with quantity, position, the aperture, magnetic material hole on described lower bolster and cope match-plate pattern is less than the aperture, magnetic material hole in described middle template; Aperture, magnetic material hole and earthenware external diameter in described middle template match, and polished earthenware can pack in the magnetic material hole of middle template just; Described middle template magnetic material hole is provided with multiple, is abound with in stencil plane, and each magnetic material hole can pack many earthenwares into, and every batch of polishing quantity is: the piece number of template in the earthenware quantity * of set every magnetic material hole filling of magnetic material hole number *; If the assembling quantity of template in increasing visible, every lot number amount will be multiplied.
Magnetic burnishing device workflow is: fluid polishing machine is by the magnetic flow liquid pressurization in magnetic feed bin A, and deliver into lower cover through hole through closed conduit, magnetic flow liquid is through lower cover through hole, via the counterdie magnetic material hole on lower bolster, mean allocation enters into each mould magnetic material hole of template, owing to being full of polished earthenware in middle mould magnetic material hole, described magnetic flow liquid can only be through the endoporus of polished earthenware; Enter the magnetic flow liquid of middle template, under the electric field action forming in coil windings, magnetic flow liquid magnetizes, magnetic particle concentrates on the center of fluid, and magnetic line of force direction forms column vertically, but not magnetic particle concentrates on the interior surface layers of earthenware, and the viscosity of magnetic flow liquid increases fast, under the effect of fluid flow pressure, the radial shear power of magnetic flow liquid in earthenware increases fast, therefore earthenware inner surface is ground and polishing efficiently; Magnetic flow liquid is through after inner holes of ceramic tubes, magnetic fields disappears, magnetic particle in magnetic flow liquid loses after magnetic fields, recover original fluid state, enter into the patrix magnetic material hole of cope match-plate pattern, behind patrix magnetic material hole, magnetic flow liquid is through upper cover plate hole, enter the return conduits of fluid polishing machine, finally get back in magnetic feed bin B.After whole flow process completes, fluid polishing machine reverse operating, magnetic flow liquid, in the other direction from magnetic feed bin B, is got back in magnetic feed bin A through the reverse each link of magnetic burnishing device.Fluid polishing machine operates repeatedly, repeatedly implements grinding and polishing operation to inner holes of ceramic tubes, until inner holes of ceramic tubes polishing reaches technological requirement standard.
The alignment pin designing in designed locating hole and middle template on described lower bolster and cope match-plate pattern, mate with left positioner pin size in its left positioner hole, mate with right positioner pin size in right positioner hole, if template direction is misplaced, because locating hole does not mate with alignment pin size and can not be seated, can guarantee that like this assembling of magnetic burnishing device is accurate.
Described magnetic burnishing device, after having assembled, be installed on fluid polishing machine, upper cover plate and lower cover dock with footstock and the base sealing joint of fluid polishing machine respectively, by fluid polishing machine by magnetic flow liquid under certain pressure, enter magnetic material mouth with the speed force feed of determining, regulate or change current strength or direction of an electric field and change frequency by coil windings controller, and in magnetic burnishing device force feed magnetic flow liquid back and forth, until surface finish conforms to requirement to batch inner holes of ceramic tubes, the described pressure of magnetic flow liquid force feed and the speed of force feed are controlled, the direction of force feed magnetic flow liquid is controlled.Described magnetic flow liquid force feed flow path is:
Direction 1: magnetic feed bin A, magnetic pipe material A, lower cover plate hole, counterdie magnetic material hole, magnetic field control region, middle mould magnetic material hole, inner holes of ceramic tubes, patrix magnetic material hole, upper cover plate hole, magnetic pipe material B, magnetic feed bin B;
Direction 2: magnetic feed bin B, magnetic pipe material B, upper cover plate hole, patrix magnetic material hole, magnetic field control region, inner holes of ceramic tubes, middle mould magnetic material hole, counterdie magnetic material hole, lower cover plate hole, magnetic pipe material A, magnetic feed bin A.
Composition, proportioning and the feature of described magnetic flow liquid: described magnetic flow liquid is made up of magnetic particle, carrier fluid and additive.
Described magnetic particle: Fe
30
4, Fe
3n, Co, Ni, ferrocobalt, the particulates such as straight iron powder and carbon back iron powder; The mixture of wherein one or more; The diameter of magnetic-particle is 0.1--100 μ m, and representative value is 3--5 μ m.In described magnetic particle, the particulate of magnetic saturation maximum is ferrocobalt, and its magnetic saturation can reach 2.4T; The magnetic saturation of straight iron powder and carbon back iron powder is about 2.1T; The magnetic saturation of other metals, alloy and oxide is all low than the magnetic saturation of iron powder.
Described carrier fluid: non magnetic liquid-based carrier fluid mainly contains one or more the mixture in silicone oil, mineral oil, artificial oil, water and ethylene glycol; Described carrier fluid requires to guarantee the suspension stability of particle; and increase the rheological property of whole magnetic flow liquid; generally need to use additive; as add various surfactants (as oleic acid) or protective colloid material (as silica gel, Si oxide etc.), prevent that magnetic-particle precipitation and irreversible spongy flocculation are tired.
Described additive: additive comprises dispersant and sagging inhibitor etc., its effect is mainly sedimentation stability, redispersibility, null field viscosity and the shear yield strength that improves magnetic flow liquid.
Described dispersant is: oleic acid and oleate, naphthenate, sulfonate (or ester), phosphate (or ester), stearic acid and salt thereof, single oleic acid glycerine, fatty alcohol, silica etc.
Described sagging inhibitor is: high molecular polymer, hydrophilic silicones oligomer (as silane coupling agent), organic metal siliceous copolymer, ultra-fine amorphous silica gel and organic clay etc.
Described magnetic flow liquid: the density of its mother liquor is generally 1g/cm
3left and right, the density of its suspended particulate is 7-8g/cm
3, the sedimentation that is far longer than the magnetic-particle that the density of mother liquor causes due to the density of magnetic-particle is one of very scabrous problem always.In addition, the diameter of suspended particulate is only generally several microns, and specific area is large, also easily reunites and sedimentation.Solve this problem so adopt the most effective method to add dissimilar surfactant, it is generally the oligomer of the structure composition of these two kinds of different in kinds of lipophilic group and hydrophilic group, its hydrophilic group can be adsorbed on the surface of magnetic-particle, and lipophilic group is diffused in the middle of mother liquor as " tip of a whip ".After magnetic-particle absorption surface activating agent, because " tip of a whip " of lipophilic group is mutually wound around and repels, can increase on the one hand the volume of particle, reduce their attract each other chances of collision; Can form an interactional three-dimensional framework in mother liquor inside on the other hand, thereby reduce the particles settling causing due to the density contrast of particle and mother liquor.
The feature of described magnetic flow liquid:
A1 viscosity: in the time applying certain magnetic field, the apparent viscosity of magnetic flow liquid suddenly increases two orders of magnitude, and liquid lacks mobility gradually, and in the time that magnetic field intensity arrives certain value greatly, it is solid-state that magnetic flow liquid changes into class; In the time removing external magnetic field, become again flowing liquid.
A2 yield shear stress magnetic flow liquid can bear mechanical force after solidifying under magnetic fields.As other solid materials, the stress that makes magnetic flow liquid occur to destroy is called yield stress, now particle chains fracture, and material starts to flow.In the time of 240kA/m, can reach 100kPa, conventionally at 30---80KPa.
A3 temperature range and high-intensity yield stress are of equal importance, and the operating temperature range of magnetic flow liquid is wider, and it can work in the scope of-40---150 DEG C.
The A4 response time: the response time of magnetic flow liquid is the millisecond order of magnitude.For example a magnetic flow liquid, applies after external magnetic field, in 3---10ms, can reach rheological equilibrium.The speed that magnetic field produces is the key factor that affects the response time.
Described magnetic flow liquid has following features: 1. zero magnetic field viscosity is low, has wider adjustable range when equal shear yield strength increases under magnetic fields; 2. high-intensity magnetic field down cut yield strength is high, and more than at least can reaching 30kPa, this is one of leading indicator of weighing magnetorheological fluid performance; 3. sedimentation resistance stability is good, and long storage time should be substantially not stratified, even or slightly layering, also can be in slight outer disturbance situation the homodisperse state of recovery rapidly.There is in addition the features such as the wide and fast response time of nontoxic, non-volatile, free from extraneous odour, the temperature scope of application.
Polishing ceramic species: the structural ceramics pipe parts such as oxide ceramics pipe fitting, carbide ceramics pipe fitting.
Pass through technique scheme, the beneficial effect of technical solutions of the utility model is: the influence of magnetic field that utilizes magnetic flow liquid and controlled coils winding, under the effect of magnetic flow liquid pressure conveyance drive force, the large batch of superhard wear pottery magnetorheological grinding of pipe fitting bore area and polishing are realized, use fluid magnetic flow liquid finishing method, parts outer surface burnishing device and operating technology are simplified, increase the new direction of magnetic converting technique application, reduce labour intensity, improve the production efficiency of polishing parts, reduce the cost of polissoir device, surface accuracy and the polishing quality of ceramic part are improved.Magnetic burnishing device is simple to operate, and labour intensity is low, and polishing efficiency is high, promotes polishing precision and the surface quality of earthenware finished product simultaneously.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the disclosed a kind of earthenware inner surface magnetorheological finishing device structural representation of the utility model embodiment;
Fig. 2 is the disclosed a kind of earthenware inner surface magnetorheological finishing device formwork structure schematic diagram of the utility model embodiment;
Fig. 3 is plate structure schematic diagram in the disclosed a kind of earthenware inner surface magnetorheological finishing device of the utility model embodiment.
Numeral and the represented corresponding component title of letter in figure:
1. mould left lower pin in the lower cover 2. lower bolster 3. left holes 4. of counterdie
5. the mould left upper pin 7. left hole of patrix 8. upper cover plates in template 6. in
9. the 12. right holes of patrix, upper cover plate hole 10. upper cover boss 11. patrix magnetic material hole
In 13., in the pin 15. of 14.Zhong Mo upper right, mould magnetic material hole, 16. earthenwares are sold in mould bottom right
The 17. counterdie magnetic material hole 18. right hole of counterdie 19. lower cover boss 20. lower cover plate holes
21. cope match-plate pattern 22. magnetic flow liquid 23. coil windings 24. winding leads
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
According to Fig. 1, Fig. 2 and Fig. 3, the utility model provides a kind of earthenware inner surface magnetorheological finishing device, comprise lower cover 1, lower bolster 2, middle template 5, cope match-plate pattern 21, upper cover plate 8, earthenware 16, magnetic flow liquid 22, coil windings 23 and winding leads 24, it is characterized in that:
Described a kind of earthenware 16 endoporus fluid polishing device in batches, referred to as magnetic burnishing device; Its assemble sequence is that lower cover 1 is placed on the base of fluid polishing machine, and described lower cover 1 is below with lower cover boss, and described lower cover boss docks with fluid polishing machine base seal; On described lower cover 1, assemble lower bolster 2, described lower bolster 2 below with boss seal and dock with the concave station coupling on lower cover; Template 5 in assembling on described lower bolster 2, described middle template 5 has evenly been abound with middle mould magnetic material hole 13, in middle mould magnetic material hole 13, assemble 16 of polished earthenwares, multiple earthenwares 16 can be assembled in each middle mould magnetic material hole 13, fit on template 21 in described middle template 5, fit on cover plate 8 on described cope match-plate pattern 21, on upper cover plate 8 with the sealing of boss and fluid polishing machine footstock dock; Described lower cover 1 is provided with lower cover plate hole 17 and upper cover plate hole 11 with upper cover plate 8, all communicate with fluid polishing machine, magnetic flow liquid 22 is entered in earthenware 16 internal diameters in magnetic burnishing device by force feed by described lower cover plate hole 17, under the electric field action of coil windings 23, under the polishing particle effect of fluid polishing machine pressure, fluid velocity, two-way flow, the abrasive material in magnetic flow liquid 22 is implemented polishing operation to earthenware 16 endoporus.
Described middle template 5 periphery are provided with sandwich, in described interlayer, be provided with coil windings 23, described coil windings 23 is connected with peripheral control unit by winding leads 24, by current strength and the change frequency of described controller regulating winding winding 23, after coil windings 23 energisings, at the inner electric field that forms of middle template 5, its electric field magnetic line of force direction and middle template 5 axially parallels, so just make the magnetized particles in magnetic flow liquid 22 flow in the axial viscous cylindricality that forms, thereby force unmagnetized polishing particle set in magnetic flow liquid 22 interior surface layers at earthenware 16, and increase viscosity and earthenware 16 shearing force radially of overall magnetic flow liquid 22, thereby superhard wear pottery inner surface of pipe fitting is realized and being ground and polishing action.
Described middle template 5 bottoms with boss dock with the concave station coupling sealing on lower bolster 2; Described middle template 5 tops with boss dock with the concave station coupling sealing on cope match-plate pattern 21; On described lower bolster 2, be provided with two locating holes, the left hole 3 of counterdie and the right hole 18 of counterdie, two described locating hole aperture differences, described middle template 5 tops and left and right, bottom are respectively respectively arranged with two alignment pins, and the position of middle mould left lower pin 4, middle mould left upper pin 6 and size are mated with position and the size in the left hole 3 of counterdie and the left hole 7 of patrix; Position and the size of middle mould bottom right pin 15, middle mould upper right pin 14 are mated with position and the size in the right hole 18 of counterdie and the right hole 12 of patrix; The alignment pin matching locking assembling on described cope match-plate pattern 21, lower bolster 2 locating holes and middle mould, thereby the rigging position of definite cope match-plate pattern 21, middle template 5 and lower bolster 2, guarantee that three magnetic material holes alignment in template are clear and coherent.
In described lower bolster 2, middle template 5 and cope match-plate pattern 21, be provided with the magnetic material hole corresponding with quantity, position, described lower bolster 2 is less than the aperture, magnetic material hole in described middle template 5 with the aperture, magnetic material hole on cope match-plate pattern 21; Aperture, magnetic material hole in described middle template 5 and earthenware 16 external diameters match, and polished ceramic 16 can pack in the middle mould magnetic material hole 13 of middle template 5 just.
Magnetic burnishing device workflow is: fluid polishing machine pressurizes the magnetic flow liquid 22 in magnetic feed bin A, and deliver into lower cover through hole 20 through closed conduit, magnetic flow liquid 22 is through lower cover through hole 20, via the counterdie magnetic material hole 17 on lower bolster 2, mean allocation enters into each mould magnetic material hole 13 of template 5, owing to being full of polished earthenware 16 in middle mould magnetic material hole 13, described magnetic flow liquid 22 can only be through the endoporus of polished earthenware 16, enter the magnetic flow liquid 22 of middle template 5, under the electric field action forming in coil windings 23, magnetic flow liquid 33 magnetizes, magnetic particle concentrates on the center of fluid, magnetic line of force direction forms column vertically, but not magnetic particle concentrates on the interior surface layers of earthenware 16, and the viscosity of magnetic flow liquid 22 increases fast, under the effect of fluid flow pressure, the radial shear power of magnetic flow liquid 22 in earthenware 16 increases fast, therefore earthenware 16 inner surfaces are ground and polishing efficiently, through earthenware 16 endoporus, enter into the patrix magnetic material hole 11 of cope match-plate pattern 21, behind patrix magnetic material hole 11, magnetic flow liquid 22 is through upper cover plate hole 9, and the return conduits that enters fluid polishing machine, finally gets back in magnetic feed bin B.After whole flow process completes, fluid polishing machine reverse operating, magnetic flow liquid 22, in the other direction from magnetic feed bin B, is got back in magnetic feed bin A through the reverse each link of magnetic burnishing device.Fluid polishing machine operates repeatedly, repeatedly implements grinding and polishing operation to earthenware 16 endoporus, until earthenware 16 endoporus polishings reach technological requirement standard.
The alignment pin of design in designed locating hole and middle template 5 on described lower bolster 2 and cope match-plate pattern 21, mate with left positioner pin size in its left positioner hole, mate with right positioner pin size in right positioner hole, if template direction is misplaced, because locating hole does not mate with alignment pin size and can not be seated, can guarantee that like this assembling of magnetic burnishing device is accurate.
Described upper cover plate 8 has identical structure, material and size with described lower cover 1, can exchange use; Described cope match-plate pattern 21 has identical structure, material and size with described lower bolster 2, can exchange use; Described middle template 5 has symmetry structure, can exchange use by above-below direction.
Described magnetic burnishing device, after having assembled, be installed on fluid polishing machine, upper cover plate 8 and lower cover 1 dock with footstock and the base sealing joint of fluid polishing machine respectively, by fluid polishing machine by magnetic flow liquid 22 under certain pressure, enter magnetic material mouth with the speed force feed of determining, and in magnetic burnishing device force feed magnetic flow liquid 22 back and forth, until 16 bore area polishings conform to requirement to batch earthenware, the described pressure of magnetic flow liquid 22 force feeds and the speed of force feed are controlled, and the direction of force feed magnetic flow liquid 22 is controlled.Described magnetic flow liquid 22 force feed flow paths are:
Direction 1: magnetic feed bin A, magnetic pipe material A, lower cover plate hole 20, counterdie magnetic material hole 17, middle mould magnetic material hole 13, earthenware 16 endoporus, patrix magnetic material hole 11, upper cover plate hole 9, magnetic pipe material B, magnetic feed bin B;
Direction 2: magnetic feed bin B, magnetic pipe material B, upper cover plate hole 9, patrix magnetic material hole 11, earthenware 16 endoporus, middle mould magnetic material hole 13, counterdie magnetic material hole 17, lower cover plate hole 20, magnetic pipe material A, magnetic feed bin A;
Composition, proportioning and the feature of described magnetic flow liquid: described magnetic flow liquid is made up of magnetic particle, carrier fluid and additive.
Preferably, described magnetic particle is carbon back iron powder particulate;
Preferably, described magnetic particle particle diameter is 3--5 μ m;
Preferably, described carrier fluid is dimethicone;
Preferably, described additive is: dispersant sodium naphthenate; The silicones oligomer that sagging inhibitor is hydrophilic, silane coupling agent;
Preferably, described magnetic flow liquid, the density of its mother liquor is 1g/cm
3, the density of suspended particulate is 7.5g/cm
3;
Preferably, described yield shear stress is 60KPa;
Preferably, described operating temperature range, 0--120 DEG C;
Preferably, the described response time for reaching rheological equilibrium in 6ms;
Polishing ceramic species:
Preferably, described ceramic material is Zirconia reinforced alumina structural ceramics.
By application of the present utility model, realize the bore area polishing of large batch of superhard wear pottery pipe fitting, use fluid magnetic flow liquid finishing method, parts outer surface burnishing device and operating technology are simplified, reduce labour intensity, improve the production efficiency of polishing parts, reduced the cost of polissoir device, improved surface accuracy and the polishing quality of ceramic part.Magnetic burnishing device is simple to operate, and labour intensity is low, and polishing efficiency is high, promotes polishing precision and the surface quality of earthenware finished product simultaneously.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. an earthenware inner surface magnetorheological finishing device, it is characterized in that, comprise lower cover, lower bolster, middle template, cope match-plate pattern, upper cover plate, earthenware, magnetic flow liquid and coil windings, assemble sequence is that lower cover is placed on the base of fluid polishing machine, below described lower cover, with lower cover boss, described lower cover boss docks with fluid polishing machine base seal; On described lower cover, assemble lower bolster, below described lower bolster with boss dock with the concave station coupling sealing on lower cover; Template in assembling on described lower bolster, described middle template has evenly been abound with middle mould magnetic material hole, middle mould magnetic material assembles polished ceramic pipe fitting in hole, multiple earthenwares can be assembled in each middle mould magnetic material hole, fit on template in described middle template, fit on cover plate on described cope match-plate pattern, on upper cover plate with the sealing of boss and fluid polishing machine footstock dock; Described lower cover and upper cover plate are provided with lower cover plate hole and upper cover plate hole, all communicate with fluid polishing machine; Described middle template bottom with boss dock with the concave station coupling sealing on lower bolster; Described middle template top with boss dock with the concave station coupling sealing on cope match-plate pattern.
2. a kind of earthenware inner surface magnetorheological finishing device according to claim 1, it is characterized in that, described middle template periphery is provided with sandwich, in described interlayer, is provided with coil windings, and described coil windings is connected with peripheral control unit by winding leads.
3. a kind of earthenware inner surface magnetorheological finishing device according to claim 1, it is characterized in that, on described lower bolster, be provided with two locating holes, two described locating hole aperture differences, described middle template top and left and right, bottom are respectively respectively arranged with two alignment pins, described locating hole mates position and lock assembling, the rigging position of fixing cope match-plate pattern, middle template and lower bolster with alignment pin.
4. a kind of earthenware inner surface magnetorheological finishing device according to claim 1, is characterized in that, the density of described magnetic flow liquid mother liquor is 0.6-1.4g/cm
3, the density of described magnetic flow liquid suspended particulate is 6-10g/cm
3; Yield shear stress is at 30-80KPa; The operating temperature range of magnetic flow liquid is in the scope of-40 DEG C to 150 DEG C; The response time of magnetic flow liquid: the response time of magnetic flow liquid is the millisecond order of magnitude, and magnetic flow liquid applies after external magnetic field, reaches rheological equilibrium in 3-10m s.
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| CN201320837577.9U CN203650137U (en) | 2013-12-18 | 2013-12-18 | Magneto-rheological polishing device for inner surfaces of ceramic pipes |
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| CN201320837577.9U CN203650137U (en) | 2013-12-18 | 2013-12-18 | Magneto-rheological polishing device for inner surfaces of ceramic pipes |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551966A (en) * | 2015-01-20 | 2015-04-29 | 上海工程技术大学 | Magnetorheological fluid adaptive planar processing system |
| CN104772662A (en) * | 2015-04-09 | 2015-07-15 | 沈祝宾 | Dry grinding device and dry grinding method for repairing paint surface of automobile |
| CN105537536A (en) * | 2015-12-16 | 2016-05-04 | 无锡市永亿精密铸造有限公司 | Precision casting mold for metal ring |
| CN105788799A (en) * | 2016-05-25 | 2016-07-20 | 重庆大学 | Ferromagnetic intelligent liquid with variable mass distribution and application of ferromagnetic intelligent liquid characteristic |
| CN107186551A (en) * | 2017-06-30 | 2017-09-22 | 辽宁科技大学 | A kind of ceramic pipe internal surface burnishing device and polishing method |
-
2013
- 2013-12-18 CN CN201320837577.9U patent/CN203650137U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551966A (en) * | 2015-01-20 | 2015-04-29 | 上海工程技术大学 | Magnetorheological fluid adaptive planar processing system |
| CN104772662A (en) * | 2015-04-09 | 2015-07-15 | 沈祝宾 | Dry grinding device and dry grinding method for repairing paint surface of automobile |
| CN104772662B (en) * | 2015-04-09 | 2017-04-12 | 沈祝宾 | Dry grinding device and dry grinding method for repairing paint surface of automobile |
| CN105537536A (en) * | 2015-12-16 | 2016-05-04 | 无锡市永亿精密铸造有限公司 | Precision casting mold for metal ring |
| CN105788799A (en) * | 2016-05-25 | 2016-07-20 | 重庆大学 | Ferromagnetic intelligent liquid with variable mass distribution and application of ferromagnetic intelligent liquid characteristic |
| CN107186551A (en) * | 2017-06-30 | 2017-09-22 | 辽宁科技大学 | A kind of ceramic pipe internal surface burnishing device and polishing method |
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