CN107477091B - The method that bearing pairing is excused from a college course mill - Google Patents
The method that bearing pairing is excused from a college course mill Download PDFInfo
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- CN107477091B CN107477091B CN201710875716.XA CN201710875716A CN107477091B CN 107477091 B CN107477091 B CN 107477091B CN 201710875716 A CN201710875716 A CN 201710875716A CN 107477091 B CN107477091 B CN 107477091B
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- inner ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/64—Special methods of manufacture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
Abstract
The invention discloses a kind of methods that bearing pairing is excused from a college course mill, comprising the following steps: step 1) finds out the maximum of T max and minimum value Tmin of the total height of trap rear bearing；Step 2) first finds out maximum value α max and minimum value the α min of complete bearing contact angle；The maximum value aemax and minimum value aemin of bearing outer ring ditch position are found out again；After step 3) finds out the maximum value aemax and minimum value aemin of bearing outer ring ditch position, pass through the margin of tolerance of above-mentioned every known quantity simultaneously, the inner ring of bearing, outer ring are ground by grinding machine and held data in the margin of tolerance of above-mentioned every known quantity, it is measured by bearing of the measuring block to examination trap, the distribution for measuring the protrusion magnitude of bearing is finely adjusted according to the deviation size of measurement result and setting target and is excused from a college course mill and assembles technical process.Pairing process of the invention is convenient, fast, time saving and energy saving, matching efficiency is high.
Description
Technical field
The present invention relates to the methods that bearing pairing is excused from a college course mill.
Background technique
Angular contact ball bearing can bear radial load and axial load simultaneously, and in application, usual mounted in pairing mode is used.With
The fast development of machine industry, for machine tool chief axis have the ultraprecise preloaded with angular contact bearings market it is huge.Institute
After the bulge quantity that meaning assembles refers to that bearing bears certain axial preload effect, the same endface of bearing, inner ring end face protrusion
The distance of its cycle surface.When single bearing basal plane protrudes another set of basal plane, protrusion measurement+, when being recessed, protrude measurement-value.
So saying from certain angle, omnipotent pairing bearing is actually to match suitable bulge quantity, and assemble in ± 1um range.
Original bearing pairing method has following two: first method, will press to extract a certain proportion of quantity out with bearing
Bulge quantity is sorted.It can be observed that protrusion magnitude substantially presses normal distribution, peak value substantially maximum and minimum
The two average value.It is random to extract the bearing that quantity is supply of material pairing logarithm according to this peak value, it carries out tearing set open, by inner ring or outer ring
Unified mill is down to a certain size value on rotary table vertical spindle surface grinder M7475B in non-referenced face, the bulge quantity peak after trap again
Value and the algebraical sum of last peak value are met the requirements, then are ideal value.Will tear open set with do not tore open cover bearing carry out respectively it is convex
Output sorting, then by arranging in pairs or groups two-by-two.The first is similar, it is therefore an objective to acquire bulge quantity peak value, then random quantity of extracting is that the supply of material is matched
To the bearing of logarithm, the bulge quantity of every set bearing is marked, by the non-referenced face of inner ring or outer ring in KGS surface grinding machine with horizontal spindle
Successively single set is milled to target bulge quantity, and the amount of grinding off of non-basal plane is the reduction amount of bulge quantity, subsequent step also with the first type
Seemingly, the situation that this method is suitable for small lot, has single set stock, enquiry period short.
There are drawback, first method bearing needs to tear set open, easily cause the scuffing of ring raceways and steel ball for the above method, this
The presence of outer grinding plane front ferrule height scattered error, mismachining tolerance when grinding make again the bearing protrusion measuring value of trap
And target value more or less has deviation, cannot match totally, and sub-fraction bearing, which need to tear more than two times set open, can be only achieved purpose；
Though second method bearing is not required to tear set open, processing and selecting efficiency are very low, and single set bearing power consumption is higher.Single set bearing exists
It is repeatedly measured on bulge quantity instrument, because measuring the repeat impact of load, easily causes the bump injury of part.
Summary of the invention
To overcome disadvantages mentioned above, that the purpose of the present invention is to provide a kind of pairing processes is convenient, fast, time saving and energy saving, matches
The method of mill is excused from a college course to high-efficient bearing pairing.
In order to reach the goals above, the technical solution adopted by the present invention is that: a kind of method that bearing pairing is excused from a college course mill, including
Following steps:
Step 1) finds out the maximum of T max and minimum value Tmin of the total height of trap rear bearing；After known bearing assemble
Maximum planes width value Bmax and minimum planes width value Bmin；Set the maximum protrusion magnitude δ max and minimum bulge quantity of bearing
Value δ min；The maximum of T max and minimum value Tmin of the total height of trap rear bearing are acquired by following formula:
Tmax=Bmax- δ min；
Tmin=Bmin- δ max；
Step 2) first finds out maximum value α max and minimum value the α min of complete bearing contact angle, and wherein known quantity includes: axis
The diameter value Dw for holding interior steel ball sets in assembling process always the only steel ball with rule value as 0；The ditch curvature maximum of bearing inner race
Rimax and minimum value Rimin, outer ring ditch curvature maximum Remax and minimum value Remin, obtained using ditch curvature instrument measurement；
G is complete bearing end-play:
The maximum value aemax and minimum value aemin of bearing outer ring ditch position are found out again, it is known that amount: total height of trap rear bearing
The maximum of T max and minimum value Tmin of degree, inner ring ditch position aimax=Bmax/2, aimin=Bmin/2, formula are as follows:
Aemax=Tmax-aimax+ (Rimin+Remin-Dw) sin α min；
Aemin=Tmin-aimin+ (Rimax+Remax-Dw) sin α max；
After step 3) finds out the maximum value aemax and minimum value aemin of bearing outer ring ditch position, while by above-mentioned items
The margin of tolerance for the amount of knowing is ground to the inner ring of bearing, outer ring by grinding machine and holds data in the public affairs of above-mentioned every known quantity
It in poor range, is measured by bearing of the measuring block to examination trap, the distribution of the protrusion magnitude of bearing is measured, according to survey
The deviation size of amount result and setting target, which is finely adjusted, to be excused from a college course mill and assembles technical process.
The invention has the advantages that first starting with from lasso Element Design, the ditch of inner ring to the end, outer ring is obtained using formula
Position size；It is ground during axis, holds inside and outside circle trueness error and guarantee in a certain range；After entering bearing pairing process, axis
Bearing outer-ring and inner ring protrusion magnitude remain in prescribed limit, avoid multiple tear open of previous needs and cover then outside grinding again
The end face of circle or inner ring substantially increases manufacturing schedule and adds come the problem of guaranteeing protrusion value, the rate of pairing is also greatly improved
Work efficiency rate.To simplify the calculation, because flexible deformation caused by measurement load is to protrusion magnitude relative effect very little, and in calculating process
It ignores.The use of measuring block is only limitted to examination trap, it is therefore an objective to which the impact for reducing bulge quantity instrument measurement load causes part
Damage, after batch trap, bulge quantity is all subject to the measured value of bulge quantity instrument.
Preferably, the measuring block has front and back, and the front and back of the bearing all has the non-cardinal extremity of inner ring
Face and outer ring datum level, the front of the measuring block have convex surface, and the convex surface can be closed with the non-cardinal extremity face paste of inner ring of bearing, institute
The middle part and outer edge for stating the back side of measuring block have protrusion, and the diameter of the elevated regions at the middle part at the back side is less than bearing
The outer peripheral protrusion of inner ring diameter, the back side can be bonded with the outer ring datum level of bearing.
Preferably, it includes the back side bulge quantity step for surveying bearing that the measuring block in step 3), which surveys the bulge quantity of bearing, first
The convex surface of measuring block is closed with the non-cardinal extremity face paste of the inner ring at the back side of bearing downward, and the measuring block is fan-shaped with one in use
The survey foot of table contacts, and the back side central core region of the measuring block is contacted with the survey foot of fan dial, remembers that indicator measures indicating value S1；Institute
Measuring block extraction overturning is stated, upward, the central core region on convex surface is contacted with the survey foot of fan dial, the survey on the convex surface of the measuring block
The outer ring datum level at the back side of the outer edge area and bearing at the back side of gauge block is bonded, and the elevated regions at middle part are because diameter is less than bearing
Inner ring aperture and avoid the non-cardinal extremity face of inner ring at the back side of bearing, remember that indicator measures indicating value S2, the back side protrusion of bearing
Magnitude is that S1 subtracts S2.
Preferably, it includes the front bulge quantity step for surveying bearing that the measuring block in step 3), which surveys the bulge quantity of bearing, first
The convex surface of measuring block is closed with the non-cardinal extremity face paste of the positive inner ring of bearing downward, the measuring block in use with a fan dial
The contact of survey foot, the back side central core region of the measuring block contacts with the survey foot of fan dial, remembers that indicator measures indicating value S3；It is described
Measuring block extraction overturning, upward, the central core region on convex surface is contacted with the survey foot of fan dial, the measurement on the convex surface of the measuring block
The outer edge area at the back side of block is bonded with the positive outer ring datum level of bearing, and the elevated regions at middle part are because diameter is less than bearing
Inner ring aperture and the non-cardinal extremity face of positive inner ring for avoiding bearing remember that indicator measures indicating value S4, the front bulge quantity of bearing
Value is that S3 subtracts S4.It should be pointed out that shadow of the bearing parts elastic deformation amount caused by specific preload to protrusion magnitude
Sound is relatively small, and the measurement when hand load lotus and bulge quantity instrument when measurement measure carries difference between He and ignores.
It is that integrally protrusion magnitude measurement result is such as shown bigger than normal, mating by compressing as a further improvement of the present invention
Radial internal clearance is adjusted close to lower limit value, and integrally protrusion magnitude measurement result is such as shown less than normal, is passed through and is amplified mating radial internal clearance
It is adjusted close to upper limit value.
It is that each bearing designation requires to make corresponding measuring block as a further improvement of the present invention, measures block size
Depending on Internal and external cycle size, the both ends of the surface of measuring block need to be ground.To reach flatness and parallel error requirement.
Detailed description of the invention
Fig. 1 is that the bulge quantity schematic diagram at the bearing back side is surveyed in the front of the present embodiment measuring block；
Fig. 2 is that the bulge quantity schematic diagram at the bearing back side is surveyed at the back side of the present embodiment measuring block；
Fig. 3 is that the positive bulge quantity schematic diagram of bearing is surveyed in the front of the present embodiment measuring block；
Fig. 4 is that the positive bulge quantity schematic diagram of bearing is surveyed at the back side of the present embodiment measuring block；
Fig. 5 is the normal distribution of the present embodiment.
In figure:
1- measuring block；The front 11-；The back side 12-；
2- bearing；The front 21-；The back side 22-；The non-cardinal extremity face of 3- inner ring；The outer ring 4- datum level；
5- protrusion；6- fan dial；7- surveys foot.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Referring to figure 1, a kind of bearing pairing of the present embodiment is excused from a college course the method for mill, comprising the following steps:
Step 1) finds out the maximum of T max and minimum value Tmin of the total height of trap rear bearing；After known bearing assemble
Maximum planes width value Bmax and minimum planes width value Bmin；Set the maximum protrusion magnitude δ max and minimum bulge quantity of bearing
Value δ min；The maximum of T max and minimum value Tmin of the total height of trap rear bearing are acquired by following formula:
Tmax=Bmax- δ min；
Tmin=Bmin- δ max；
Step 2) first finds out maximum value α max and minimum value the α min of complete bearing contact angle, and wherein known quantity includes: axis
The diameter value Dw for holding interior steel ball sets in assembling process always the only steel ball with rule value as 0；The ditch curvature maximum of bearing inner race
Rimax and minimum value Rimin, outer ring ditch curvature maximum Remax and minimum value Remin, obtained using ditch curvature instrument measurement；
G is complete bearing end-play:
The maximum value aemax and minimum value aemin of bearing outer ring ditch position are found out again, it is known that amount: total height of trap rear bearing
The maximum of T max and minimum value Tmin of degree, inner ring ditch position aimax=Bmax/2, aimin=Bmin/2, formula are as follows:
Aemax=Tmax-aimax+ (Rimin+Remin-Dw) sin α min；
Aemin=Tmin-aimin+ (Rimax+Remax-Dw) sin α max；
After step 3) finds out the maximum value aemax and minimum value aemin of bearing outer ring ditch position, while by above-mentioned items
The margin of tolerance for the amount of knowing is ground to the inner ring of bearing, outer ring by grinding machine and holds data in the public affairs of above-mentioned every known quantity
It in poor range, is measured by bearing of the measuring block to examination trap, the distribution of the protrusion magnitude of bearing is measured, according to survey
The deviation size of amount result and setting target, which is finely adjusted, to be excused from a college course mill and assembles technical process.
As shown in Figs 1-4, there is measuring block 1 front 11 and the back side 12, the front 21 and the back side 22 of bearing 2 to all have inner ring
Non- cardinal extremity face 3 and outer ring datum level 4, the front 11 of measuring block 1 have convex surface, and convex surface can be pasted with the non-cardinal extremity face 3 of inner ring of bearing 2
It closes, the middle part at the back side 12 of measuring block 1 and outer edge have protrusion 5, and the diameter in 5 region of protrusion at the middle part at the back side 12 is less than axis
2 inner ring diameter is held, outer peripheral raised the 5 of the back side 12 can be bonded with the outer ring datum level 4 of bearing 2.
As shown in Figure 1, 2, it includes 22 bulge quantity of the back side for surveying bearing 2 that the measuring block 1 in step 3, which surveys the bulge quantity of bearing 2,
Step, the first convex surface of measuring block 1 are bonded with the non-cardinal extremity face 3 of the inner ring at the back side 22 of bearing 2 downward, and measuring block 1 was using
The survey foot 7 of mono- fan dial 6 of Cheng Zhongyu contacts, and 12 central core region of the back side of measuring block 1 is contacted with the survey foot 7 of fan dial 6, remembers table
Needle measures indicating value S1；The extraction overturning of measuring block 1, the convex surface of measuring block 1 upward, the survey foot 7 of the central core region on convex surface and fan dial 6
Contact, the outer ring datum level 4 at the back side 22 of the outer edge area and bearing 2 at the back side 12 of measuring block 1 are bonded, 5th area of protrusion at middle part
The non-cardinal extremity face 3 of inner ring at the back side 22 that domain avoids bearing 2 because diameter is less than the inner ring aperture of bearing 2 remembers that indicator measures
Indicating value S2, it is that S1 subtracts S2 that magnitude is protruded at the back side 22 of bearing 2.
As shown in Figure 3,4, it includes 21 bulge quantity of front for surveying bearing 2 that the measuring block 1 in step 3, which surveys the bulge quantity of bearing 2,
Step, the first convex surface of measuring block 1 are bonded with the non-cardinal extremity face 3 of inner ring in 2 front 21 of bearing downward, and measuring block 1 is in use process
In contacted with the survey foot 7 of a fan dial 6,12 central core region of the back side of measuring block 1 is contacted with the survey foot 7 of fan dial 6, remembers indicator
Measure indicating value S3；The extraction overturning of measuring block 1, upward, the central core region on convex surface connects with the survey foot 7 of fan dial 6 on the convex surface of measuring block 1
Touching, the outer ring datum level 4 in the front 21 of the outer edge area and bearing 2 at the back side 12 of measuring block 1 are bonded, 5 region of protrusion at middle part
The non-cardinal extremity face 3 of inner ring in the front 21 for avoiding bearing 2 because diameter is less than the inner ring aperture of bearing 2, remembers that indicator measurement is shown
Value S4, it is that S3 subtracts S4 that magnitude is protruded in the front 21 of bearing 2.
Integrally protrusion magnitude measurement result is such as shown bigger than normal, is adjusted by compressing mating radial internal clearance close to lower limit value,
Integrally protrusion magnitude measurement result is such as shown less than normal, is adjusted by amplifying mating radial internal clearance close to upper limit value.
Each bearing designation requires to make corresponding measuring block, measures block size depending on Internal and external cycle size, measuring block
Both ends of the surface need to be ground.
By bearing designation 7306B by taking the back-to-back form pairing of DB as an example,
Bearing internal external circle plane width valueLooking into national standard GB/T307.1-2005, " rolling bearing radial bearing is public
Difference ", Δ Bs is obtained between 0~-0.12, correction value (matched bearing permissible value) is between 0~-0.25, by the plane width value of setting,
It, can also be by normal single set storage even if the bearing after trap is not matched in pairs.
Set the maximum protrusion magnitude+0.013mm of bearing, minimum protrusion magnitude+0.009mm；
It is obtained using following formula:
Tmax=Bmax-δmin=18.95-0.009=18.941mm；
Tmin=Bmin-δmax=18.94-0.013=18.927mm；
Obtain the total height assembled after bearing assembleLook into rower JB/T10336-2005 " rolling bearing and its
Part additional requirements ", Δ Ts is obtained between 0~-0.4, and setting protrusion magnitude meets condition.
Nominal contact angle α=40 ° of known bearing, steel ball diameter value DW=12.7mm；It looks into Luoyang axis and grinds institute's " angular contact
Ball bearing design method ZYB-89 " mating radial internal clearance table, obtain radial internal clearance maximum value 0.264, minimum value 0.221；Outer ring channel
Curvature valueInner ring ditch curvature value
Above-mentioned each known quantity is substituted into formula to obtain:
Sin42.1682 ° of ae+ai-Tmin=(6.73+6.6-12.7)
Sin34.4517 ° of ae+ai-Tmax=(6.67+6.54-12.7)
Inside and outside ditch position need to adjust 9.65 ± 0.02 and 9.63 ± 0.02, compress half with original comparison tolerance.
After obtaining above-mentioned every solution value, by surface grinding machine to the inner ring of bearing, the flat surface grinding of outer ring, inside and outside guarantee
The plane width value of circleBearing internal external circle channel is ground by special purpose grinder, guarantees that bearing inner race ditch is bent
Rate valueBearing outer ring ditch curvature valueBearing inner race ditch place value ai=9.63 ± 0.02；Bearing
Outer ring channel place value is ae=9.65 ± 0.02；Bearing internal external circle channel dimensions guarantee radial internal clearance value 0.009~0.013.Mill adds
After work, bulge quantity is surveyed to 73 sets bearings of examination trap, we plane and ditch size with one for one grade, the two is identical
Trap is carried out, measuring bulge quantity maximum value is 0.049, and minimum value 0.019, normal distribution is as shown in figure 5, data such as following table
It is shown:
According to chart as can be seen that the qualification rate of trap substantially remains in 40 percent, relative to traditional matching side
The qualification rate of method greatly improves, but still has insufficient place, we are when grinding processing, it should by Internal and external cycle
The thinner of ditch size point should should be added 2u machinery in assembly to uniform sizes with 2um 5um stepping by plane lapping
Formula gauge outfit.Angular contact bearing matches clock synchronization afterwards for we, it should be noted that following several points:
1. blank ditch position of related features is compressed
2. height tolerance is compressed
3. normalization, when offline every time, by the 0 progress bulge quantity review of channel sample circle, the adjustment of ditch position
4. ditch size separation consideration stepping, bulge quantity scattered error caused by purpose reduces because of radial internal clearance scattered error
5. ting model is because using idler wheel, outer fissure curvature size is unified, objectively partially subtracts the small scattered error of bulge quantity,
Consider medium-and-large-sized number ditch lock one
6. the use of double-ended grinding machine, height dimension is unified, reduces bulge quantity scattered error
7. channel sorts, change influence of the table quality to sorting quality, model is smaller more sensitive
8. the high too high or too low bearing of assembly tears set analysis open
9. radial internal clearance and the derivation of bulge quantity functional relation
10. ditch position, the compression of the ditch curvature margin of tolerance
11. internal system of scrapping between process
It finally summarizes, is paired into power for raising matched bearing, the reconditioning quality of single lasso is reduced, by ring face
It is just got rid of when being processed between the process of reconditioning quality in the pre-assembly.In the case where other parameters are constant, pass through control lasso
Ditch position of related features and width tolerance are resolved.That improves assembly is paired into power other than controlling bulge quantity, bearing it is interior
The control of outer ring channel curvature, contact angle, inside/outside diameter size etc. is also crucial and important characteristic index.Ditch position of related features is controlled
Range is smaller, and ditch curvature tolerance compression 50 percent improves ditch position measurement accuracy, changes and measured in the past with template
Ditch position generates the too big phenomenon of error, ensure that the precision of lasso.Plane process is to realize the positioning surface of omnipotent pairing, slightly
Grinding set plane process reserves reconditioning quality, and the dimensional tolerance of whole flat surface grinding strict control plane keeps Internal and external cycle width contour, guarantees to close
Qualification rate.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with technique
People understands the contents of the present invention and is implemented, and it is not intended to limit the scope of the present invention, all spiritual according to the present invention
The equivalent change or modification that essence is done, should be covered by the scope of protection of the present invention.
Claims (5)
1. a kind of method that bearing pairing is excused from a college course mill, it is characterised in that: the following steps are included:
Step 1) finds out the maximum of T max and minimum value Tmin of the total height of trap rear bearing；Maximum after known bearing assemble
Plane width value Bmax and minimum planes width value Bmin；Set the maximum protrusion magnitude δ max and minimum protrusion magnitude δ of bearing
min；The maximum of T max and minimum value Tmin of the total height of trap rear bearing are acquired by following formula:
Tmax=Bmax- δ min；
Tmin=Bmin- δ max；
Step 2) first finds out maximum value α max and minimum value the α min of complete bearing contact angle, and wherein known quantity includes: in bearing
The diameter value Dw of steel ball sets in assembling process always the only steel ball with rule value as 0；The ditch curvature maximum of bearing inner race
Rimax and minimum value Rimin, outer ring ditch curvature maximum Remax and minimum value Remin, obtained using ditch curvature instrument measurement；
G is complete bearing end-play:
The maximum value aemax and minimum value aemin of bearing outer ring ditch position are found out again, it is known that amount: the total height of trap rear bearing
Maximum of T max and minimum value Tmin, inner ring ditch position aimax=Bmax/2, aimin=Bmin/2, formula are as follows:
Aemax=Tmax-aimax+ (Rimin+Remin-Dw) sin α min；
Aemin=Tmin-aimin+ (Rimax+Remax-Dw) sin α max；
After step 3) finds out the maximum value aemax and minimum value aemin of bearing outer ring ditch position, while passing through above-mentioned every known quantity
The margin of tolerance, the tolerance model of above-mentioned every known quantity is ground and held data in the inner ring of bearing, outer ring by grinding machine
It in enclosing, is measured by bearing of the measuring block to examination trap, measures the distribution of the protrusion magnitude of bearing, tied according to measurement
Fruit and the deviation size for setting target, which are finely adjusted, to be excused from a college course mill and assembles technical process, and the measuring block (1) in step 3) is surveyed
The bulge quantity of bearing (2) includes the back side (22) the bulge quantity step for surveying bearing (2) and front (21) bulge quantity for surveying bearing (2)
Step, integrally protrusion magnitude measurement result is such as shown bigger than normal, is adjusted by compressing mating radial internal clearance close to lower limit value, whole
Protrusion magnitude measurement result such as shows less than normal, is adjusted by amplifying mating radial internal clearance close to upper limit value.
2. the method that bearing pairing according to claim 1 is excused from a college course mill, it is characterised in that: the measuring block (1) has just
Face (11) and the back side (12), the front (21) and the back side (22) of the bearing (2) all have the non-cardinal extremity face (3) of inner ring and outer cycle basis
The front (11) of quasi- face (4), the measuring block (1) has convex surface, and the convex surface can be with the non-cardinal extremity face (3) of inner ring of bearing (2)
Fitting, the middle part at the back side (12) of the measuring block (1) and outer edge have raised (5), the middle part of the back side (12) it is convex
The diameter for playing (5) region is less than the inner ring diameter of bearing (2), and outer peripheral raised (5) of the back side (12) can be with bearing (2)
Outer ring datum level (4) fitting.
3. the method that mill is excused from a college course in bearing (2) pairing according to claim 2, it is characterised in that: the back side (22) protrusion
Step is measured, the convex surface of measuring block (1) first is bonded with the non-cardinal extremity face (3) of the inner ring at the back side (22) of bearing (2) downward, the survey
Gauge block (1) is contacted with the survey foot (7) of a fan dial (6) in use, the back side (12) central core region of the measuring block (1)
It is contacted with the survey foot (7) of fan dial (6), remembers that indicator measures indicating value S1；Measuring block (1) the extraction overturning, the measuring block
(1) upward, the central core region on convex surface is contacted with the survey foot (7) of fan dial (6) on convex surface, the back side (12) of the measuring block (1)
Outer edge area be bonded with the outer ring datum level (4) at the back side (22) of bearing (2), protrusion (5) region at middle part is less than because of diameter
The inner ring aperture of bearing (2) and the non-cardinal extremity face (3) of inner ring for avoiding the back side (22) of bearing (2) remember that indicator measures indicating value
The back side (22) the protrusion magnitude of S2, bearing (2) are that S1 subtracts S2.
4. the method that mill is excused from a college course in bearing (2) pairing according to claim 2 or 3, it is characterised in that: the front (21) is convex
The convex surface of output step, first measuring block (1) is bonded with the non-cardinal extremity face (3) of inner ring of bearing (2) positive (21) downward, the survey
Gauge block (1) is contacted with the survey foot (7) of a fan dial (6) in use, the back side (12) central core region of the measuring block (1)
It is contacted with the survey foot (7) of fan dial (6), remembers that indicator measures indicating value S3；Measuring block (1) the extraction overturning, the measuring block
(1) upward, the central core region on convex surface is contacted with the survey foot (7) of fan dial (6) on convex surface, the back side (12) of the measuring block (1)
Outer edge area be bonded with the outer ring datum level (4) in the front (21) of bearing (2), protrusion (5) region at middle part is less than because of diameter
The inner ring aperture of bearing (2) and the non-cardinal extremity face (3) of inner ring for avoiding the front (21) of bearing (2) remember that indicator measures indicating value
Front (21) the protrusion magnitude of S4, bearing (2) are that S3 subtracts S4.
5. the method that bearing pairing according to claim 1 is excused from a college course mill, it is characterised in that: each bearing designation requires to make
Make corresponding measuring block, measures block size depending on Internal and external cycle size, the both ends of the surface of measuring block need to be ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710875716.XA CN107477091B (en) | 2017-09-25 | 2017-09-25 | The method that bearing pairing is excused from a college course mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710875716.XA CN107477091B (en) | 2017-09-25 | 2017-09-25 | The method that bearing pairing is excused from a college course mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107477091A CN107477091A (en) | 2017-12-15 |
| CN107477091B true CN107477091B (en) | 2019-07-16 |
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| CN117386724B (en) * | 2023-12-13 | 2024-03-01 | 杭州一佳精密轴承有限公司 | Turbocharger ball bearing suitable for large-displacement diesel engine and manufacturing method |
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| CN1696525A (en) * | 2004-05-15 | 2005-11-16 | 洛阳轴承集团有限公司 | Manufacturing method of group-assorted bulge quantity of angular contacted ball bearing |
| CN202204420U (en) * | 2011-05-10 | 2012-04-25 | 无锡市第二轴承有限公司 | Composite measuring standard block for measuring slot position of angular contact bearing |
| CN102913557A (en) * | 2012-10-25 | 2013-02-06 | 无锡市三立轴承有限公司 | Method for pairing bearing free of grinding |
| CN204535611U (en) * | 2015-01-09 | 2015-08-05 | 瓦房店金北轴承制造有限公司 | A kind of protrusion measuring device of micron order angular contact ball bearing |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696525A (en) * | 2004-05-15 | 2005-11-16 | 洛阳轴承集团有限公司 | Manufacturing method of group-assorted bulge quantity of angular contacted ball bearing |
| CN202204420U (en) * | 2011-05-10 | 2012-04-25 | 无锡市第二轴承有限公司 | Composite measuring standard block for measuring slot position of angular contact bearing |
| CN102913557A (en) * | 2012-10-25 | 2013-02-06 | 无锡市三立轴承有限公司 | Method for pairing bearing free of grinding |
| CN204535611U (en) * | 2015-01-09 | 2015-08-05 | 瓦房店金北轴承制造有限公司 | A kind of protrusion measuring device of micron order angular contact ball bearing |
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| Title |
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| "配对角接触球轴承凸出量的设计及误差分析";蔡亚新;《轴承》;20000331(第3期);第4-7页 |
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