CN106312707B - Taper roller convexity penetration type super precision method based on the combination of different-thickness oilstone - Google Patents
Taper roller convexity penetration type super precision method based on the combination of different-thickness oilstone Download PDFInfo
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- CN106312707B CN106312707B CN201610758350.3A CN201610758350A CN106312707B CN 106312707 B CN106312707 B CN 106312707B CN 201610758350 A CN201610758350 A CN 201610758350A CN 106312707 B CN106312707 B CN 106312707B
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
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Abstract
Taper roller convexity penetration type super precision method of the present invention based on the combination of different-thickness oilstone, is related to technical field of bearing processing；Super precision method of the present invention makes choice the thickness of every block of oilstone in used oil extraction stone, form the combination of different-thickness oilstone, improve taper roller protuberance shape, and taper roller is extended through with changeless tilting posture along the straight line parallel with deflector roll axis between two deflector rolls；During the tilting posture refers to that roller runs through, there are an angle, i.e. oblique angle between the perforative straight line of taper roller axis and institute in the horizontal plane.Super precision method of the present invention, can improve the protuberance shape of roller, make profiled rollers shape close to logarithmic curve.
Description
Technical field
The present invention relates to technical field of bearing processing, specifically a kind of circular cone rolling based on the combination of different-thickness oilstone
Sub- convexity penetration type super precision method.
Background technology
Taper roller is a kind of important part of rolling bearing, especially profiled rollers connecing for roller in bearing and raceway
Actively impact can all be produced by touching stress distribution and elastohydrodynamic lubrication oil film shape, be had to raising bearing performance and reliability of service life important
Meaning.Therefore, there are strict requirements to the conical surface convexity of taper roller in process of production.The curved shape of profiled rollers, mesh
Preceding generally acknowledged optimal crown curve is logarithmic curve, its size is measured with micron, its Precision Machining is always bearing mnanufacture
One of middle important technology problem for needing to solve.At present, penetration type superfinishing grind be precision tapered profiled rollers processing main work
Skill, its processing method are：The spiral deflector roll of a pair of of axis horizontal and configured in parallel, makees the movement of dead axle rotating Vortex so that by upper
Material mechanism is continuously introduced into roller between two deflector rolls, can one side rotation, while with certain fixation or variation posture edge
Certain track is extended through between two deflector rolls, wherein, the roller shape surface of two deflector rolls is contacted from both sides with the conical surface of roller,
Roller is supported, gesture stability and rotation driving, it is preceding（After or）The spiral rib of deflector roll is contacted with the ball basal plane of roller, is pushed away
Dynamic roller runs through forward and isolates adjacent rollers；Meanwhile one platoon leader's square oilstone be elastically pressed against from surface on roller, and
Make the small size linear oscillating of high frequency along deflector roll axis direction, the roller conical surface is ground.Superfinishing is usually referred to as superfinishing
Processing.
In current taper roller penetration type microstoning, although the quantity some of an oil extraction stone only has 6 pieces, some is more
Up to 12 pieces, but the thickness of oilstone is just as, this just constrains the improvement of profiled rollers shape after superfinishing.In taper roller
In penetration type microstoning, the working face of oilstone is the inner sunken face automatically generated with oilstone itself abrasion, itself and roller cone
The contact grinding behavior in face all occurs in the range of the curved surface.Although oilstone working face is with the contact situation of the roller conical surface with specific
The difference of working condition and the change for having complexity, but the size of oilstone working face curved surface scope is on the whole to oilstone and roller
Contact grinding behavior has restrictive function.The size of oilstone thickness directly affects the size of oilstone working face, and then to super lapping
Contact grinding behavior and profiled rollers of the oilstone with roller have material impact in journey.
Taper roller penetration type microstoning is often difficult to obtain good profiled rollers in production at present, same in more oilstones
When work under conditions of, do not play the combination of different-thickness oilstone be important restriction therein to the adjustment effect of protuberance shape because
Element.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is proposed that a kind of circle based on the combination of different-thickness oilstone
Profiled rollers penetration type super precision method is bored, to improve the protuberance shape of roller, makes profiled rollers shape close to logarithmic curve.
The present invention is that technical solution is used by solving above-mentioned technical problem：
Based on the taper roller convexity penetration type super precision method of different-thickness oilstone combination, including a pair of of axis horizontal and flat
The deflector roll of row configuration makees the movement of dead axle rotating Vortex so that the taper roller between two deflector rolls is continuously introduced into by feed mechanism, one
Side rotation, while being run through with a kind of tilting changeless posture along the straight line parallel with deflector roll axis between two deflector rolls
By, wherein, the roller shape surface of two deflector rolls is supported taper roller, gesture stability from both sides and the taper-face contact of roller
And rotation driving, and the spiral rib of deflector roll is contacted with the ball basal plane of taper roller, promotes taper roller to run through forward and by phase
Adjacent taper roller isolation；Meanwhile one platoon leader's square oilstone be elastically pressed against from surface on taper roller, and along deflector roll axis side
To making the small size linear oscillating of high frequency, the step of being ground to the roller conical surface；The method of the present invention is in used oil extraction stone
The thickness of every block of oilstone makes choice, and forms the combination of different-thickness oilstone, improves taper roller protuberance shape, and taper roller
Extended through with changeless tilting posture along the straight line parallel with deflector roll axis between two deflector rolls；The tilting posture
It is in the horizontal plane there are an angle between the perforative straight line of taper roller axis and institute, i.e., oblique during referring to that roller runs through
Angle setting.
To make taper roller protuberance shape close to logarithmic curve, according to the specific geometric parameter of roller and convex metric requirements not
Together, the size of the oblique angle selects in the range of 1 ° -3 °.The requirement of profiled rollers amount is bigger, and the oblique angle of selection is bigger.Allow
Maximum oblique angle is restricted be subject to roller cone angle, and the cone angle of roller is bigger, it is allowed to which the oblique angle of selection is bigger.
As the preferred solution of the present invention, the taper roller convexity based on the combination of different-thickness oilstone with 8 blocks of oilstones
Penetration type super precision method, oilstone thickness assembled scheme is, since taper roller is through entrance, first and second blocks of oilstones take phase
Same thickness, the 3rd to the 5th block of oilstone takes same thickness and thickness value is 0.8-0.9 times of first piece, the 6th to the 8th piece of oil
Stone takes 0.6-0.7 times that same thickness and thickness value are first piece.
It is according to the principle that the requirement adjustment oilstone thickness of profiled rollers amount and protuberance shape after superfinishing combines：If it is required that
Convexity amount is some larger or protuberance shape is more precipitous, then increases the ratio of heat-bodied oil stone, can also increase heat-bodied oil stone at the same time
Pressure；Conversely, if it is desired to convexity amount is smaller or protuberance shape is gentler, then increase the ratio of thin oilstone, can also
Reduce the pressure of heat-bodied oil stone at the same time.
The beneficial effects of the invention are as follows：The profiled rollers shape of taper roller penetration type microstoning is effectively improved, makes rolling
Sub- protuberance shape is close to logarithmic curve；Adjustment oilstone thickness combination be easier to realize, adjustment leeway it is also bigger, therefore,
The method of the present invention is quite convenient for application.
The technical principle of the present invention is as follows：
In the processing of tilting penetration type taper roller convexity ultra-precision grinding, the oilstone material of through-thickness diverse location on oilstone
Material, acts at the diverse location of taper roller length direction, and abrades roller at taper roller length direction diverse location
The difference of depth of material forms profiled rollers.It is more to act on the oilstone material of a certain position of taper roller length direction, should
The removing amount of position roller material is more, and it is bigger that corresponding material abrades depth.Therefore, by used oil extraction stone
The thickness of each oilstone carries out different selections and forms certain combination, can effectively change and act on taper roller length direction not
With the oilstone quantity of material at position, make to abrade the depth of roller material at the diverse location of roller length direction towards improving convexity
The direction of shape changes, so as to obtain the effect for improving profiled rollers shape.
The influence that oilstone thickness reduces to profiled rollers shape also has another mechanism.Superfinishing grinds middle oilstone to workpiece material
The removing amount of material is not to increase as the time increases and linearly, and total trend is as the time increases oilstone to workpiece material
Material removal rate be gradually reduced, and the time increase to a certain extent after material removal rate can become very little.For tilting penetration type circular cone
The grinding of profiled rollers microstoning, roller big end and small end margin superfinishing area to roller is all accompanied by roller skirt materials
Abrade what is gradually extended to middle part, therefore run through the oilstone of entrance remotely, its removing to roller skirt materials apart from roller
Rate is than relatively low, and correspondingly, the oilstone material near its thickness border does not just allow easy consumption, since oilstone is bonded abrasive tool,
This can influence the oilstone materials serve abrasive action near mid-depth.The oilstone thickness of entrance remotely will be run through apart from roller
Reduce, roller central region can be made to obtain more fully superfinishing, and then improve profiled rollers shape to avoid this negative effect
Shape.
Based on above-mentioned technical principle, superfinishing can be obtained with Effective Regulation protuberance shape by the combination of an oil extraction stone thickness
Effect of the profiled rollers shape close to logarithmic curve afterwards.
Brief description of the drawings
Fig. 1 is the tilting penetration type taper roller convexity ultra-precision grinding processing method schematic diagram based on the combination of different-thickness oilstone；
Fig. 2 is taper roller-oilstone Contact Geometric schematic diagram；
Fig. 3 is a kind of roller longitudinal direction section shape schematic diagram of particular cross section under specific taper roller posture；
Fig. 4 is to contact line morphology schematic diagram with the corresponding roller-oilstone of longitudinal section shape shown in Fig. 3；
Fig. 5 is that taper roller-oilstone of embodiment contacts line chart；
Fig. 6 is each longitudinal section shape inclined degree comparison diagram of the taper roller of embodiment；
Fig. 7 is superfinishing area schematic diagram when embodiment oilstone thickness is 6mm；
Fig. 8 is superfinishing area schematic diagram when embodiment oilstone thickness is 4mm；
Mark is in figure：01st, roller axis, 02, taper roller, 03 oilstone, 04, deflector roll axis, 05, deflector roll,
06th, roller runs through straight line, and 07, oblique angle, 08, the contact line on roller, 09, oilstone thickness back boundary, 10, on oilstone
The big end margin superfinishing area of roller, 11, the roller non-edge edge superfinishing area on oilstone, 12, the big end margin of roller on oilstone surpasses
Smart area, 13, oilstone thickness front border.
Embodiment
Based on the taper roller convexity penetration type super precision method of different-thickness oilstone combination, including a pair of of axis horizontal and flat
The deflector roll of row configuration makees the movement of dead axle rotating Vortex so that the taper roller between two deflector rolls is continuously introduced into by feed mechanism, one
Side rotation, while being run through with a kind of tilting changeless posture along the straight line parallel with deflector roll axis between two deflector rolls
By, wherein, the roller shape surface of two deflector rolls is supported taper roller, gesture stability from both sides and the taper-face contact of roller
And rotation driving, and the spiral rib of deflector roll is contacted with the ball basal plane of taper roller, promotes taper roller to run through forward and by phase
Adjacent taper roller isolation；Meanwhile one platoon leader's square oilstone be elastically pressed against from surface on taper roller, and along deflector roll axis side
To making the small size linear oscillating of high frequency, the step of being ground to the roller conical surface；The method of the present invention is in used oil extraction stone
The thickness of every block of oilstone makes choice, and forms the combination of different-thickness oilstone, improves taper roller protuberance shape, and taper roller
Extended through with changeless tilting posture along the straight line parallel with deflector roll axis between two deflector rolls；The tilting posture
It is in the horizontal plane there are an angle between the perforative straight line of taper roller axis and institute, i.e., oblique during referring to that roller runs through
Angle setting.
To make taper roller protuberance shape close to logarithmic curve, according to the specific geometric parameter of roller and convex metric requirements not
Together, the size of the oblique angle selects in the range of 1 ° -3 °.The requirement of profiled rollers amount is bigger, and the oblique angle of selection is bigger.Allow
Maximum oblique angle is restricted be subject to roller cone angle, and the cone angle of roller is bigger, it is allowed to which the oblique angle of selection is bigger.
As the preferred solution of the present invention, the taper roller convexity based on the combination of different-thickness oilstone with 8 blocks of oilstones
Penetration type super precision method, oilstone thickness assembled scheme is, since taper roller is through entrance, first and second blocks of oilstones take phase
Same thickness, the 3rd to the 5th block of oilstone takes same thickness and thickness value is 0.8-0.9 times of first piece, the 6th to the 8th piece of oil
Stone takes 0.6-0.7 times that same thickness and thickness value are first piece.
It is according to the principle that the requirement adjustment oilstone thickness of profiled rollers amount and protuberance shape after superfinishing combines：If it is required that
Convexity amount is some larger or protuberance shape is more precipitous, then increases the ratio of heat-bodied oil stone, can also increase heat-bodied oil stone at the same time
Pressure；Conversely, if it is desired to convexity amount is smaller or protuberance shape is gentler, then increase the ratio of thin oilstone, can also
Reduce the pressure of heat-bodied oil stone at the same time.
The situation that this super precision method is also applied for two and its above quantity Superfinishing machine line uses.More Superfinishing machine lines
Situation, can regard that the oilstone quantity that a row works at the same time adds as, for example two Superfinishing machine lines use, and work at the same time
Oilstone quantity be 16.It is such to change the protection domain for still falling within this patent.
Below by embodiment, the present invention will be further described.
Embodiment 1
A kind of taper roller semi-cone angle is 2 °, length 20mm, end diameter 10mm, it is desirable to which convexity amount is 5-7 μm, convex
Shape is spent close to logarithmic curve, profiled rollers is processed using tilting penetration type super precision method, used Superfinishing machine there are 8 oilstones
Pressurized cylinder, it is possible to provide 8 blocks of a row oilstone works at the same time.
Tilting penetration type taper roller convexity ultra-precision grinding processing method based on the combination of different-thickness oilstone is as shown in Figure 1.
Since taper roller is through entrance, the thickness of first and second blocks of oilstones takes 6mm, the 3rd to the 5th block of oilstone
Thickness takes 5mm, and the thickness of the 6th to the 8th block of oilstone takes 4mm；Ensure to roll during microstoning by the design and reconditioning of superfinishing roller
The oblique angle of son is 1 °.Such selection can make the taper roller protuberance shape after superfinishing also full close to logarithmic curve, convexity amount
Sufficient above-mentioned requirements.
Embodiment 2
A kind of taper roller semi-cone angle is 1.5 °, length 16mm, end diameter 12mm, it is desirable to convexity amount is 6-8 μm,
Protuberance shape processes profiled rollers, used Superfinishing machine has 6 oil close to logarithmic curve using tilting penetration type super precision method
Stone pressurized cylinder, it is possible to provide 6 blocks of a row oilstone works at the same time.
Since taper roller is through entrance, the thickness of first and second blocks of oilstones takes 8mm, the 3rd to the 4th block of oilstone
Thickness takes 6.5mm, and the thickness of the 5th to the 6th block of oilstone takes 5mm；When ensureing microstoning by the design and reconditioning of superfinishing roller
The oblique angle of roller is 2 °.Such selection can make the taper roller protuberance shape after superfinishing close to logarithmic curve, convexity amount
Meet above-mentioned requirements.
Embodiment 3
A kind of taper roller semi-cone angle is 2.5 °, length 25mm, end diameter 20mm, it is desirable to which convexity amount is 7-11 μ
M, protuberance shape process profiled rollers, used Superfinishing machine has 10 close to logarithmic curve using tilting penetration type super precision method
A oilstone pressing cylinder, it is possible to provide 10 blocks of a row oilstone works at the same time.
Since taper roller is through entrance, the thickness of first to the 3rd block of oilstone takes 15mm, the 4th to the 6th block of oilstone
Thickness take 12mm, the thickness of the 7th to the tenth block of oilstone takes 9mm；When ensureing microstoning by the design and reconditioning of superfinishing roller
The oblique angle of roller is 3 °.Such selection can make the taper roller protuberance shape after superfinishing close to logarithmic curve, convexity amount
Meet above-mentioned requirements.
The technical principle of the present invention is described further below in conjunction with the accompanying drawings.
For the tilting penetration type microstoning of taper roller, horizontal vertical section and longitudinal vertical section are selected respectively, from
The roller conical surface and oilstone working face correspond to two aspects of section shape shape, analyze the way of contact of roller and oilstone.Longitudinal direction refers to roll
Son runs through rectilinear direction, is laterally and longitudinally perpendicular direction.Hereinafter, horizontal vertical section abbreviation lateral cross section, it is corresponding to cut
Shape is known as horizontal section shape；Longitudinal vertical section abbreviation longitudinal cross-section, corresponding section shape are known as longitudinal section shape.Fig. 2 is that roller-oilstone connects
Touch geometrical relationship schematic diagram.
Transverse cutting conformal analysis.Oilstone shape of working surface is automatically generated with oilstone itself abrasion, and oilstone abrasion is it
Produced with roller contact grinding, therefore, when roller runs through below oilstone along straight line, the working face of oilstone should be that edge is passed through
The Extrude Face of rectilinear direction is worn, the shape of each of which horizontal section shape is all identical.On the other hand, roller have conical surface and its
Spatial intersecting relation is presented with running through straight line in axis, thus, each horizontal section shape of the roller conical surface is that size is mutually different ellipse
Circle.Therefore, the Contact Geometric between roller and oilstone is not the simple face contact relation as grinding cut-in type superfinishing.
Longitudinal section shape analysis.Fig. 3 is a kind of roller longitudinal direction section shape schematic diagram of particular cross section under specific roller posture, wherein
The sectional position of section shape representated by lowercase, is represented with corresponding capitalization in fig. 2.First investigate the longitudinal direction of the roller conical surface
Section shape.Due to the presence of oblique angle and roller cone angle, in oilstone thickness range, longitudinal section shape of the roller conical surface is all one section of circle
Curve is bored, but in the horizontal as the difference of sectional position, the shape and incline direction of section shape are also different.Oilstone work is investigated again
Longitudinal section shape in face.Oilstone working face is longitudinal stretching face, thus its longitudinal section shape is horizontal linear.Oilstone working face is certainly
Body wears what is formed, under steady-working state, in each longitudinal cross-section in oilstone width range, and section of roller and oilstone
Shape can all have a contact point.Obviously, it is ensured that roller runs through along horizontal linear, this contact point can only be roller longitudinal direction section shape
Peak.Therefore, roller is that line contacts with oilstone, and contact line is the space curve that all vertical section shape peaks of roller are linked to be.
Under the thickness and locality condition of certain roller geometric parameter and oilstone, the specific shape of roller-oilstone contact line
State depends on roller posture.Based on symmetry, tilting direction does not influence, therefore only deflector roll is tilting backward for consideration roller small end
Situation.
Qualitative analysis first is carried out to the contact line morphology under above-mentioned specific roller posture.This specific roller posture is to incline
Oblique angle takes one so that the value that plain line small end is slightly raised on roller, and oblique angle takes a less appropriate value.Inclination angle is
Refer to roller axis and the angle between straight line in longitudinal vertical plane.When the lateral position of oilstone is its mid-depth section
During by roller axis lengthwise centers, roller-oilstone contact line morphology under this roller posture is as shown in Figure 4.Fig. 4 is contact
The projection of line in the horizontal plane.In Fig. 4, contact line is made of broken line ABCDEF, and AB and EF respectively represent one section of roller big end circle
Arc, CD represent one section of roller small end circular arc, and BC and DE sections of shapes not can determine that still（Figure cathetus is schematical）.This contact
The Forming Mechanism of line is：Moved with the position of longitudinal cross-section from A to F, roller longitudinal direction section shape（Conic section）Shape and incline
Tilted direction constantly changes, its peak is changed along broken line ABCDEF.Fig. 3 is some specific longitudinal cross-sections under this roller posture
Position and corresponding section shape schematic diagram.Sectional position code name in Fig. 2 is identical with the contact line turnover point symbol of Fig. 4, represents
Sectional position is corresponding turning point position.In addition, in oilstone mid-depth, section shape p is that DE connects for the position of section shape o in Fig. 3
Touch the section shape of line length central cross-section.
Contact line shown in Fig. 4, AB and EF sections be known as big end EDGE CONTACT line, CD section be known as small end EDGE CONTACT line, AC with
DE sections are known as non-edge contact line.Contact line morphology shown in Fig. 4 is the most one kind of contact line hop count, based on this, with
The Parameters variations such as roller posture, contact line hop count and each section of length and position can be varied from, such as, if oblique angle increases
Greatly, then D points are moved to oilstone thickness back boundary direction, even up in oilstone thickness back boundary, cause the EF sections of even DE that disappear
Section and EF sections all disappear；If roller small end reduces, CD sections may become very little or even disappear；If roller small end is significantly lifted
Height, CD sections may become very big, meanwhile, AB and EF sections of even AC and DE sections all possible disappearances.
It is assumed that contact line has form shown in Fig. 4, coordinate system can be set and further establish roller longitudinal direction section shape equation
And Contact line equations, the contact geometry problem of roller and oilstone is carried out deeper into analysis.Application No.
201610052176.0 disclosed patent of invention gives the longitudinal direction section shape equation and Contact line equations, and illustrate how by
It is used for profiled rollers analysis.Taper roller microstoning for above-described embodiment 1, when roller oblique angle be 1 °, inclination angle
For 2.04 °, when oilstone thickness is 6mm, the roller oilstone contact line drawn with the equation is as shown in figure 5, each longitudinal direction of roller is cut
The inclined degree contrast of shape is as shown in Figure 6.
In Fig. 5, x coordinate direction is laterally and oilstone thickness direction, is oilstone mid-depth at x=0, and x represents to be negative
The later half area of oilstone, x are just to represent oilstone first half area；Z coordinate direction is longitudinal direction, and the length direction of roller and oilstone, z values be
Negative to represent roller small end on one side, z values are just to represent roller big end on one side.Thick line portion in Fig. 5 is contact line, filament covering
Scope is the contact zone scope on roller.Fig. 5 shows that 1 situation lower roller of embodiment-oilstone contact line morphology is " Z " font.
Z in Fig. 6bCoordinate direction is longitudinal, ybCoordinate direction is vertical.Fig. 6 shows, in oilstone mid-depth position
Put, roller longitudinal direction section shape small end is slightly too high, as boundary, closer to the later half area border of oilstone thickness（X take on the occasion of and increasingly
Greatly）, roller longitudinal direction section shape small end is raised more；And towards oilstone thickness first half area border（X takes negative value and less and less）, roller
Longitudinal section shape incline direction quickly becomes big end and raises and higher and higher.
The oilstone that thickness is 6mm, can be divided into such as Fig. 7 by the contact line according to Fig. 5 on roller along its thickness direction
Shown 3 superfinishing areas, i.e., big end margin superfinishing area, small end margin superfinishing area and non-edge superfinishing area.Big end margin superfinishing area
Oilstone material is only ground the roller material of roller big end adjacent edges, still, according to Fig. 6, due to thick along oilstone
Spend that roller longitudinal direction section shape angle of inclination at the diverse location of direction is different, thus the roller material depth that abrades of diverse location is not yet
Together, wherein oilstone material closer to thickness border, the roller material depth of removing is bigger, with roller material removing its grind
Mill position is less susceptible to movement in the middle part of roller；And got over closer to the oilstone material of mid-depth, the roller material depth of removing
Small, with the removing of roller material, its abrasion site is easier to movement in the middle part of roller, so as to expand so-called big end adjacent edges
Scope.The oilstone material in small end margin superfinishing area is only ground the roller material of roller small end adjacent edges, it is abraded
The rule of roller material is similar to big end margin superfinishing area.The oilstone material in non-edge superfinishing area is ground roller total length.
As shown in Figure 7, the oilstone material in non-edge superfinishing area lacking more than big end and small end margin superfinishing area, wears basic rule by material
Rule is used for contact grinding of the oilstone with roller and understands that the depth of material that roller edges at two ends is nearby abraded is more more than middle part, because
And convexity can be formed after roller superfinishing.
The corresponding oilstone thickness of Fig. 7 is 6mm, if oilstone thickness is reduced to 4mm and keeps mid-depth position constant,
Then obtain the superfinishing area shown in Fig. 8.Compared with Fig. 7, the oilstone material of big end and small end superfinishing area in Fig. 8 all reduces, and
And the position for reducing oilstone material is all the corresponding highest place of roller longitudinal direction section shape inclined degree, this causes near roller two
The roller material of end margin position reduces removing chance, so as to influence the protuberance shape of roller.
Claims (2)
1. based on the taper roller convexity penetration type super precision method of different-thickness oilstone combination, including a pair of of axis horizontal and parallel
The deflector roll of configuration makees the movement of dead axle rotating Vortex so that is continuously introduced into the taper roller between two deflector rolls by feed mechanism, on one side
Rotation, certain posture of one side are extended through along the straight line parallel with deflector roll axis between two deflector rolls, wherein, the roller of two deflector rolls
Shape surface is supported taper roller, gesture stability and rotation driving from both sides and the taper-face contact of roller, and the spiral shell of deflector roll
Rotation rib is contacted with the ball basal plane of taper roller, promotes taper roller to run through forward and isolate adjacent taper roller；Meanwhile one
Platoon leader's square oilstone is elastically pressed against on taper roller from surface, and makees the small size linear oscillating of high frequency along deflector roll axis direction,
The step of being ground to the roller conical surface, it is characterised in that：The thickness of every block of oilstone in used oil extraction stone is selected
Select, if required, convexity amount is some larger or protuberance shape is more precipitous, increases the ratio of heat-bodied oil stone；Conversely, if it is desired to
Convexity amount is smaller or protuberance shape is gentler, then increases the ratio of thin oilstone, and taper roller is with changeless
Tilting posture is extended through along the straight line parallel with deflector roll axis between two deflector rolls；The tilting posture refers to that roller runs through
During, in the horizontal plane between the perforative straight line of taper roller axis and institute there are an angle, i.e. oblique angle, oblique angle
Size is 1 ° -3 °.
2. the taper roller convexity penetration type super precision method as claimed in claim 1 based on the combination of different-thickness oilstone, its feature
It is：When the oilstone is 8 pieces, oilstone thickness assembled scheme is, since taper roller is through entrance, first and second pieces of oil
Stone takes identical thickness, the 3rd to the 5th block of oilstone take same thickness and thickness value is first piece 0.8-0.9 times, the 6th to the
Eight blocks of oilstones take 0.6-0.7 times that same thickness and thickness value are first piece.
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| CN201610758350.3A CN106312707B (en) | 2016-08-30 | 2016-08-30 | Taper roller convexity penetration type super precision method based on the combination of different-thickness oilstone |
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| CN107471079B (en) * | 2017-08-01 | 2019-11-05 | 河南科技大学 | Method is ground using the penetration type taper roller convexity ultra-precision grinding of not being in the mood for of cone column matching deflector roll |
| CN108789129A (en) * | 2018-08-24 | 2018-11-13 | 浙江辛子精工机械股份有限公司 | A kind of taper roller spherical end surface superfinishing device |
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| JP2002086341A (en) * | 2000-09-08 | 2002-03-26 | Nsk Ltd | Super-finishing method for roller |
| CN101704204A (en) * | 2009-11-12 | 2010-05-12 | 杭州劳格罗拉轴承滚子有限公司 | Noncentral penetrated super-finishing method of spherical roller |
| CN102717326A (en) * | 2012-05-31 | 2012-10-10 | 河南科技大学 | Analytic method for superfinishing shaping convexity of roller bearing based on evolution forming principle |
| CN103465149A (en) * | 2013-05-16 | 2013-12-25 | 河南科技大学 | Super-finishing method for crowning of small end-lifted through tapered roller |
| CN105678009A (en) * | 2016-01-19 | 2016-06-15 | 河南科技大学 | Convexity analysis method based on tapered roller inclined penetration type ultrafinishing |
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2016
- 2016-08-30 CN CN201610758350.3A patent/CN106312707B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002086341A (en) * | 2000-09-08 | 2002-03-26 | Nsk Ltd | Super-finishing method for roller |
| CN101704204A (en) * | 2009-11-12 | 2010-05-12 | 杭州劳格罗拉轴承滚子有限公司 | Noncentral penetrated super-finishing method of spherical roller |
| CN102717326A (en) * | 2012-05-31 | 2012-10-10 | 河南科技大学 | Analytic method for superfinishing shaping convexity of roller bearing based on evolution forming principle |
| CN103465149A (en) * | 2013-05-16 | 2013-12-25 | 河南科技大学 | Super-finishing method for crowning of small end-lifted through tapered roller |
| CN105678009A (en) * | 2016-01-19 | 2016-06-15 | 河南科技大学 | Convexity analysis method based on tapered roller inclined penetration type ultrafinishing |
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Application publication date: 20170111 Assignee: LUOYANG RENCHENG BEARING PARTS CO.,LTD. Assignor: Henan University of Science and Technology Contract record no.: X2019980000433 Denomination of invention: Tapered roller convexity penetrating type superfinishing method based on combination of oilstones with different thicknesses Granted publication date: 20180424 License type: Common License Record date: 20191101 |
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Application publication date: 20170111 Assignee: BAOXIN HEBEI BEARING MANUFACTURING Co.,Ltd. Assignor: HENAN University OF SCIENCE AND TECHNOLOGY Contract record no.: X2023980037623 Denomination of invention: Penetration Superprecision Method for Conical Roller Convexity Based on Different Thickness Oil Stone Combinations Granted publication date: 20180424 License type: Common License Record date: 20230706 |
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