CN100553880C - Thick/the fine machining integrated processing device of abrasive band centerless grinding and polishing - Google Patents
Thick/the fine machining integrated processing device of abrasive band centerless grinding and polishing Download PDFInfo
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- CN100553880C CN100553880C CNB2007100329112A CN200710032911A CN100553880C CN 100553880 C CN100553880 C CN 100553880C CN B2007100329112 A CNB2007100329112 A CN B2007100329112A CN 200710032911 A CN200710032911 A CN 200710032911A CN 100553880 C CN100553880 C CN 100553880C
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Abstract
The invention discloses the thick/fine machining integrated processing device of centerless grinding of a kind of abrasive band and polishing, this device comprises workpiece support roller, guide wheel, bistrique is not in the mood in grinding head, transition gear, fixed gear, double-axis motor, abrasive band, workpiece support roller holding workpieces, the abrasive band is not in the mood for bistrique and is made up of bistrique driving wheel, abrasive band and bistrique contact wheel, and the bistrique driving wheel is connected with the bistrique contact wheel by the abrasive band.Double-axis motor one end is fixedlyed connected with the bistrique driving wheel, and the other end is connected with fixed gear; Fixed gear and transition gear are meshing, and transition gear is connected with grinding head is meshing.This device solves has poor rigidity such as elongated round bar spare cylindrical corase grind, correct grinding, polishing, multiple operation processing, existing technological problemses such as equipment is many, transhipment is many, complicated operation, installation inconvenience, and this device improves overall efficiency, cuts down finished cost, enlarges the range of work; Integrate thick, half essence, fine finishining, grinding and polishing.
Description
Technical field
The invention belongs to machinery manufacturing technology field, the thick/fine machining integrated processing device of centerless grinding of particularly a kind of abrasive band and polishing.
Background technology
The Study on grinding majority on surface concentrates on individual event grinding (comprising bonded abrasive tool grinding and coated abrasive tool grinding) or the research and development and the application of grinding and polishing (abbreviation polishing) merely to foreign round at present.
Aspect the bonded abrasive tool grinding: comprise emery wheel cylindricalo grinding, emery wheel centerless grinding, the grinding of skive precision mirror surface, oilstone vibration fine abrasive, developed superfinishing stone polishing special plane as the Beijing first Machine Tools Plant, only relate to the polishing part, the milled portion that does not relate to early stage.
Aspect the coated abrasive tool grinding: comprise abrasive band cylindricalo grinding, abrasive band Cylindrical Centerless Grinding, developed as University Of Chongqing be suitable for roughly grinding, the abrasive band centerless grinder of half correct grinding because the abrasive band granularity is limited, can not relate to meticulous polishing; The open type abrasive band that Tsing-Hua University has carried out hard disc vibrates accurate polishing technology, but does not relate to milled portion such as corase grind, correct grinding equally; Chao-Shan Area all multiple enterprises in Guangdong are for the most microns diamond band vibropolish that adopt imitated United States Patent (USP) of outer round surface, but efficient is not high, and cost is too expensive, only is used for precision grinding process.The meticulous abrasive band of German import is adopted in some paper mill, and (there are the abrasive band breakage problem equally in 800#～1000#) cylindricalo grinding, polishing papermaking cylinder.
Simple abrasive polishing method for cylindrical has:
1, on lathe, adopt the hand feed mode of operation that is coated with abrasive pastes in the cast iron grinding sleeve, versatility is poor, efficient is low, suface processing quality is unstable.
2, adopt the wool wheel of high-speed cruising to carry abrasive pastes secretly and carry out the handheld tool polishing in the surface to foreign round, because wool wheel good springiness can produce strain according to the situation that contacts with workpiece, contact area is big, polishing efficient is higher, and the thinnest W0.5 that reaches of abrasive pastes can reach mirror effect.
3, adopt elastic grinding wheel that the polyurethane foam abrasive material blendes together mirror polish to foreign round, this mode contact area is limited, abrasive grain meticulous inadequately (market is limited to 600#).
There is centre bore holding workpiece poor rigidity in existing used cylindrical (abrasive band or the emery wheel) grinding machine of elongated round bar spare cylindricalo grinding, and cylindricity is difficult to guarantee that the emery wheel centerless grinder is easy to make Workpiece vibration not too to be suitable for the excessive workpiece of draw ratio because of its rigidity contact.Existing grinding, polishing technology all adopt the operation dispersing mode of multiple operation, fail the grinding and the follow-up polishing in early stage are reached organic combination, and form integrated composite technology.
Summary of the invention
In order to solve poor rigidity such as elongated round bar spare cylindrical corase grind, correct grinding, polishing, multiple operation processing, existing technological problemses such as equipment is many, transhipment is many, complicated operation, installation inconvenience, the object of the present invention is to provide a kind of surface to foreign round to carry out the thick/fine machining integrated processing device of the abrasive band centerless grinding and the polishing of grinding.This device improves overall efficiency, cuts down finished cost, enlarges the range of work; Integrate thick, half smart, fine finishining (single grinding head is changed bistrique more than abrasive band or the different grain size number and realized), grinding and polishing (adjustable wool wheel is carried abrasive pastes secretly).
Purpose of the present invention realizes by following technical proposals: the thick/fine machining integrated processing device of centerless grinding of a kind of abrasive band and polishing, comprise the workpiece support roller, guide wheel, grinding head, transition gear, fixed gear, bistrique is not in the mood in double-axis motor and abrasive band, described processing unit (plant) workpiece spindle is provided with a guide wheel and bistrique is not in the mood in an abrasive band to the feed end of direction of feed, the other end is provided with two guide wheels, described guide wheel and abrasive band be not in the mood for bistrique all perpendicular to workpiece spindle to direction of feed, described workpiece support roller holding workpieces, bistrique is not in the mood for by the bistrique driving wheel in described abrasive band, abrasive band and bistrique contact wheel are formed, and the bistrique driving wheel is connected with the bistrique contact wheel by the abrasive band; Described double-axis motor one end is fixedlyed connected with the bistrique driving wheel, and the other end is connected with fixed gear; Fixed gear and transition gear are meshing, and transition gear is connected with grinding head is meshing, and fixed gear passes to grinding head with gyration by transition gear (also can be multistage transition tooth, TV structure size and decide), realize the polishing main motion to workpiece.
Described grinding head comprises back-moving spring, band tooth axle sleeve, fixed bearing block, ball bearing, arc wedge type briquetting, centrifugal globe, end cap, wool wheel and includes the abrasive pastes of abrasive material, described band tooth axle sleeve is connected with fixed bearing block by ball bearing, band tooth axle sleeve and transition gear are meshing, band tooth axle sleeve high speed rotary under transition gear drives.Described wool is taken turns an end and is located by connecting with band tooth axle sleeve inner face, and the other end is connected with end cap, and end cap is fixedlyed connected by screw with band tooth axle sleeve; The wool wheel outer surface links to each other with band tooth axle sleeve inner conical surface by arc wedge shape briquetting.Described arc wedge shape briquetting one end is connected with band tooth axle sleeve by back-moving spring, and the other end is connected with end cap by centrifugal globe, forms groove between arc wedge shape briquetting and the end cap.When speed was low and static, back-moving spring made arc wedge shape briquetting shift to end cap all the time, and centrifugal globe moves to central axis direction along groove, loosens the wool wheel outer surface.When the motion of band tooth axle sleeve, end cap, wool wheel and centrifugal globe all turn round, centrifugal force forces centrifugal globe to move outside groove, promote arc wedge shape briquetting away from end cap and compression reseting spring, because cone match character, arc wedge shape briquetting evenly applies normal pressure to the wool wheel, makes the abrasive pastes and the surface of the work that include abrasive material produce the polishing effect, and this application of force process is to finish automatically.
Described wool wheel is convenient to tighten up for the elastic opening nested structure, and its internal circular surfaces fluting can be carried abrasive pastes secretly in the groove.The described abrasive pastes that include abrasive material are taken turns the free wool that is fixed on of abrasive material in inner surface and the fluting thereof by the viscosity of self.The abrasive pastes that include abrasive material drive between the outer surface that enters wool wheel and workpiece to feeding from the end adding of band tooth axle sleeve and at workpiece spindle.
The installation axis of described guide wheel and bistrique contact wheel axially present angle (θ), and according to the feed speed (Vf) and the speed of gyration (Vw) of required workpiece (7), described angle is 3～15 ° of scopes, Vw=Vg cos θ wherein, Vf=Vg sin θ.
Described guide wheel is shaped as one sheet hyperboloid.Guide wheel gyratory directions and bistrique contact wheel gyratory directions are reverse.Described abrasive band linear velocity Vs＞＞guide wheel turning spur speed Vg, so relative grinding speed is higher.
Abrasive band of the present invention centerless grinding and polishing thick/fine machining integrated processing device can be realized grinding, polishing is integrated and automation.The rapidoprint of apparatus of the present invention comprises that rubber, nylon, asbestos etc. are nonmetal, and difficult-to-machine metal such as copper, aluminium, steel, stainless steel, titanium alloy, nickel alloy; Big, the flexible processing of elasticity, but the workpiece of machining shape complexity; Diameter range is from 3～300mm; Be particularly suitable for the cylindrical workpiece of poor rigidity.Can be widely used in industries such as machinery, automobile, Aero-Space, shipbuilding, mould manufacturing, smelting, light industry, chemical industry, weaving, electronics, furniture.
The present invention compared with prior art has following advantage and beneficial effect:
1, grinding efficiency height of the present invention; Chip space is big, and the range of work comprises nonmetal and various metal materials (containing non-ferrous metal) such as rubber; Big, the flexible processing of elasticity, but the workpiece of machining shape complexity; Workpiece self is without clamping, and the workpiece of not burning is realized dry grinding; Slightly, half smart, correct grinding, polish in one, be easy to form the production of unit flowing water; Simple to operate, safe.
2, abrasive band centerless grinding of the present invention has not only overcome centre bore holding workpiece poor rigidity, cylindricity is difficult to guarantee, the emery wheel centerless grinder is because of its rigidity contact, be easy to make Workpiece vibration not too to be suitable for these shortcomings of the excessive workpiece of draw ratio, and implement very flexible, but slightly, half smart, precision grinding process both single grinding head change the different grain size abrasive band fast and realize, many bistriques of also available different grain size number are finished.
3, polishing of the present invention adopt gentle elasticity and adaptability fabulous wool wheel inner surface make 360 ° of good all standing Elastic Contact of circumference with the excircle of workpiece surface after smearing abrasive pastes, axially contact wire also can design as required, thereby contact area is big.The abrasive particle quantity that contact simultaneously can participate in grinding and polishing is many, can improve working (machining) efficiency; The fine and closely woven reticulate pattern quantity that the random distribution of abrasive pastes abrasive material makes surface of the work form is many, track is complicated, is beneficial to the reduction of roughness Ra value.The granularity range of choice of abrasive pastes is extensive, can be low to moderate W0.5, can obtain the polishing effect of minute surface and accurate minute surface.Compare with exposed wool wheel, the abrasive pastes polishing mode of mould industry, the abrasive pastes that internally close mutually can leak outside hardly, make full use of abrasive pastes, save the polishing cost.
4, the present invention is comprehensive with accurate elasticity polishing with grinding efficiently, forms integrated processing.Precision reaches IT6～8 grade, roughness Ra1.6～0.02, and overall efficiency improves 8 times, and floor space saves 70%, and personnel are reduced to 1/4 of traditional multiple operation.Workpiece reduces labour intensity 80% without clamping.
Description of drawings
Fig. 1 is the thick/fine machining integrated processing device schematic diagram of abrasive band of the present invention centerless grinding and polishing.
Fig. 2 is wool wheel and abrasive pastes grinding and polishing device structure enlarged drawing.
Fig. 3 amplifies right view for wool wheel and abrasive pastes grinding and polishing device structure.
Wherein: 1-workpiece support roller, 2-guide wheel, 3-grinding head, 4-transition gear, 5-fixed gear, 6-motor, 7-workpiece, 8-bistrique driving wheel, 9-abrasive band, 10-contact wheel, 11-back-moving spring, 12-band tooth axle sleeve, 13-fixed bearing block, 14-ball bearing, 15-arc wedge type briquetting, 16-centrifugal globe, 17-end cap, 18-wool wheel, 19-include the abrasive pastes of abrasive material.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, thick/the fine machining integrated processing device of centerless grinding of a kind of abrasive band and polishing, comprise workpiece support roller 1, guide wheel 2, grinding head 3, transition gear 4, fixed gear 5, double-axis motor 6, bistrique is not in the mood in the abrasive band, described processing unit (plant) workpiece spindle is provided with a guide wheel 2 and bistrique is not in the mood in an abrasive band to an end of direction of feed, the other end is provided with two guide wheels 2, described guide wheel 2 and abrasive band be not in the mood for bistrique all perpendicular to workpiece spindle to direction of feed, workpiece support roller 1 holding workpieces 7, bistrique is not in the mood for by bistrique driving wheel 8 in described abrasive band, abrasive band 9 and bistrique contact wheel 10 are formed, and bistrique driving wheel 8 is connected with bistrique contact wheel 10 by abrasive band 9.Described double-axis motor 6 one ends are fixedlyed connected with bistrique driving wheel 8, and the other end is connected with fixed gear 5; Fixed gear 5 is meshing with transition gear 4, transition gear 4 and 3 meshing connections of grinding head, and fixed gear passes to extraordinary grinding head with gyration by transition gear (also can be multistage transition tooth, TV structure size and decide), and realization is to the polishing main motion of workpiece.
Described workpiece 7 transmits by 1 supporting of workpiece support roller and enters between guide wheel 2 and the bistrique contact wheel 10, guide wheel 2 drives workpiece 7 revolutions on the one hand, drive workpiece axial feed (Vf) on the other hand, workpiece 7 is opposite with bistrique contact wheel 10 tangent place linear velocity directions, realizes contrary mill.Workpiece 7 is not when breaking away from bistrique contact wheel 10 fully, and its front end enters between two guide wheels 2, even workpiece 7 breaks away from 10 grindings of bistrique contact wheel fully, also can further axially turn round and axial feed, for follow-up polishing provides feed motion.
As Fig. 2, shown in Figure 3, described grinding head 3 comprises back-moving spring 11, band tooth axle sleeve 12, fixed bearing block 13, ball bearing 14, arc wedge type briquetting 15, centrifugal globe 16, end cap 17, wool wheel 18, with the abrasive pastes 19 that include abrasive material, described band tooth axle sleeve 12 is connected with fixed bearing block 13 by ball bearing 14, band tooth axle sleeve 12 is meshing with transition gear 4, and band tooth axle sleeve 12 is high speed rotary under transition gear 4 drives.Described wool is taken turns 18 1 ends and is located by connecting with band tooth axle sleeve 12 inner faces, and the other end is connected with end cap 17, and end cap 17 is fixedlyed connected by screw with being with tooth axle sleeve 12; Wool is taken turns 18 outer surfaces and is linked by arc wedge shape briquetting 15 and band tooth axle sleeve 12 inner conical surfaces.Described arc wedge shape briquetting 15 1 ends are connected with band tooth axle sleeve 12 by back-moving spring 11, and the other end is connected with end cap 17 by centrifugal globe 16, forms groove between arc wedge shape briquetting 15 and the end cap 17.When speed was low and static, back-moving spring 11 made arc wedge shape briquetting 15 shift to end cap 17 all the time, and centrifugal globe 16 moves to central axis direction along groove, loosens wool and takes turns 18 outer surfaces.When 12 motions of band tooth axle sleeve, end cap 17, wool wheel 18 and centrifugal globe 16 all turn round, centrifugal force forces centrifugal globe 16 to move outside groove, promoting arc wedge shape briquetting 15 moves and compression reseting spring 11 away from end cap 17, because cone match character, 15 pairs of wool wheels 18 of arc wedge shape briquetting evenly apply normal pressure, make the abrasive pastes 19 that include abrasive material produce the polishing effect with workpiece 7 surfaces, and this application of force process is to finish automatically.
Described wool wheel is convenient to tighten up for the elastic opening nested structure, and the internal circular surfaces fluting is carried the abrasive pastes that include abrasive material secretly in the groove.Described abrasive pastes are taken turns the free wool that is fixed on of abrasive material in inner surface and the fluting thereof by the viscosity of self.The abrasive pastes that include abrasive material add and drive between the outer surface that enters wool wheel and workpiece to feeding at workpiece spindle from an end of band tooth axle sleeve, make that abrasive material is free to be fixed in wool wheel inner surface and the fluting thereof.
Concrete process operation process is as follows:
Outer round bar of elongated round bar spare or pipe material workpiece are placed on the workpiece support roller, and allow the one end enter the abrasive band not to be in the mood between bistrique and the guide wheel, the revolution of guide wheel will drive workpiece revolution (Vw) and along himself moving axially (Vf), grinding is implemented to workpiece in the abrasive band that runs up, portion's section that grinding finishes will continue revolution and move up to entering wool wheel inner surface to contact with abrasive pastes, make the grinding head high speed rotary, contract in wool is taken turns under the operation of centrifugal globe centrifugal force and apply grinding pressure, allow trickle abrasive material contact with workpiece machining surface, thereby realize grinding function, make that the surface roughness after the grinding further reduces.As seen, an end of workpiece is not when (being roughing) is in the mood for being ground between bistrique and the guide wheel in the abrasive band, and its other end is ground (being fine finishining) between two guide wheels, realizes the incorporate Compound Machining of barreling (thick/fine finishining).Because the elasticity and the damping effect of wool wheel, in case workpiece one end enters in the grinding head, whole work-piece operation and feeding meeting are more steady, are beneficial to the grinding quality that improves front end.Leave before the abrasive band is not in the mood for bistrique and guide wheel at an end of workpiece, its other end must be advanced into earlier between two guide wheels, reaches the whole outer surface grinding and finishes, thoroughly thereby guarantee to have after workpiece at one end leaves the revolution of continuation and axial feed.
The choosing of the abrasive grain of abrasive pastes should be in the mood for bistrique with the abrasive band and be complementary, for thick especially workpiece, centerless grinding part can consider that a plurality of abrasive bands that are arranged in parallel are not in the mood for the bistrique correspondence and set varigrained abrasive band, realizes grinding behind corase grind, half correct grinding, the correct grinding again.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (6)
1, thick/the fine machining integrated processing device of centerless grinding of a kind of abrasive band and polishing, comprise the workpiece support roller, guide wheel, grinding head, transition gear, fixed gear, bistrique is not in the mood in double-axis motor and abrasive band, it is characterized in that: described workpiece support roller holding workpieces, described processing unit (plant) workpiece spindle is provided with a guide wheel and bistrique is not in the mood in an abrasive band to the feed end of direction of feed, the other end is provided with two guide wheels, described guide wheel and abrasive band be not in the mood for bistrique all perpendicular to workpiece spindle to direction of feed, bistrique is not in the mood for by the bistrique driving wheel in described abrasive band, abrasive band and bistrique contact wheel are formed, and the bistrique driving wheel is connected with the bistrique contact wheel by the abrasive band; Described double-axis motor one end is fixedlyed connected with the bistrique driving wheel, and the other end is connected with fixed gear; Fixed gear and transition gear are meshing, and transition gear is connected with grinding head is meshing;
Described grinding head comprises back-moving spring, band tooth axle sleeve, fixed bearing block, ball bearing, arc wedge type briquetting, centrifugal globe, end cap, wool wheel and includes the abrasive pastes of abrasive material, described band tooth axle sleeve is connected with fixed bearing block by ball bearing, band tooth axle sleeve and transition gear are meshing, described wool is taken turns an end and is located by connecting with band tooth axle sleeve inner face, the other end is connected with end cap, and end cap is fixedlyed connected by screw with band tooth axle sleeve; The wool wheel outer surface links by arc wedge shape briquetting and band tooth axle sleeve inner conical surface; Described arc wedge shape briquetting one end is connected with band tooth axle sleeve by back-moving spring, and the other end is connected with end cap by centrifugal globe, forms groove between arc wedge shape briquetting and the end cap.
2, the thick/fine machining integrated processing device of a kind of abrasive band centerless grinding according to claim 1 and polishing is characterized in that: described wool wheel is the elastic opening nested structure, its internal circular surfaces fluting.
3, thick/fine machining integrated processing device of a kind of abrasive band centerless grinding according to claim 1 and polishing is characterized in that: the described abrasive pastes that include abrasive material are by the viscosity of self abrasive material to be dissociated to be fixed on the inner surface of wool wheel and to slot interior.
4, the thick/fine machining integrated processing device of a kind of abrasive band centerless grinding according to claim 1 and polishing, it is characterized in that: the installation axis and the bistrique contact wheel of described guide wheel axially present angle, and described angle is 3～15 ° of scopes.
5, the thick/fine machining integrated processing device of a kind of abrasive band centerless grinding according to claim 1 and polishing, it is characterized in that: described guide wheel is shaped as one sheet hyperboloid.
6, the thick/fine machining integrated processing device of a kind of abrasive band centerless grinding according to claim 1 and polishing, it is characterized in that: described guide wheel gyratory directions and bistrique contact wheel gyratory directions are reverse.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100329112A CN100553880C (en) | 2007-12-27 | 2007-12-27 | Thick/the fine machining integrated processing device of abrasive band centerless grinding and polishing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100329112A CN100553880C (en) | 2007-12-27 | 2007-12-27 | Thick/the fine machining integrated processing device of abrasive band centerless grinding and polishing |
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| CN101195205A CN101195205A (en) | 2008-06-11 |
| CN100553880C true CN100553880C (en) | 2009-10-28 |
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2007
- 2007-12-27 CN CNB2007100329112A patent/CN100553880C/en not_active Expired - Fee Related
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