CN100578034C - B7 angular contact ball bearing assembly die - Google Patents
B7 angular contact ball bearing assembly die Download PDFInfo
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- CN100578034C CN100578034C CN200810037125A CN200810037125A CN100578034C CN 100578034 C CN100578034 C CN 100578034C CN 200810037125 A CN200810037125 A CN 200810037125A CN 200810037125 A CN200810037125 A CN 200810037125A CN 100578034 C CN100578034 C CN 100578034C
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- contact ball
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Abstract
The invention relates to an assembling mould of a B7 contact ball bearing, which comprises a round assembling mould terrace, and is characterized in that the terrace is provided with a taper table figure central positioning table; a steel ball positioning table for positioning a bearing steel ball in the process of assembling is arranged at the housing washer of the central positioning table; the steel ball positioning table is a stepped table, and the step is a two-grade step higher inside and lower outside. The method for assembling the B7 contact ball bearing includes the following steps: the retainer is sheathed on the assembling mould along the axial direction; the heated housing washer is sheathed on the retainer along the axial direction; the steel ball slides along the top taper part of the assembling mould to be located in a jolt; an inner race is inserted along the axial direction. The assembling mould has the following advantage: as each spare part can be precisely located by being assembled on the positioning mould, and lipid is not needed for adhesion, and the assembling time is shortened, the whole process is guaranteed to be completed in the range of an allowed retraction for the cooling of the housing washer, so that the assembling mould of a B7 contact ball bearing has the effect of fast and accurate assembling.
Description
Technical field
The present invention relates to bearing manufacturing technology field, concrete relate to a kind of assembling mould that bearing is made that is used for.
Background technique
In the prior art, the common assembly method of B7 class angular contact ball bearing is: at first bearing outer ring heating expand into a certain amount of after, take out in the hot stove and be placed on the platform, the outer ring that retainer is put into, again steel ball is filled in retainer pocket hole, with grease steel ball is bonded at respectively in the retainer pocket hole one by one and prevents to come off, then with lock mouthful inner ring is inserted in the assembly of the outer ring, retainer and the steel ball that have the fit up gap, also need at last grease is cleaned.
The problem that existing assembling exists is: the outer ring of heating is taken out in the stove and is assembled with other part on platform, and As time goes on the outer ring will bounce back; And cling the unstability that part is located by oil, make and the state that the fit up gap is zero or interference occurs, continue assembling and will cause inner ring fore shaft and steel ball surface scratch, thereby cause the reduction of bearing running accuracy and the rising of vibration values, have to reheat assembling, so an assembly yield is lower.
Summary of the invention
Technical problem to be solved by this invention is, overcomes problems of the prior art, and a kind of mould of the B7 of being used for class angular contact ball bearing assembling is provided.
In order to address the above problem technological scheme of the present invention is such:
B7 class angular contact ball bearing assembly die comprises the assembling mould platform of a circle it is characterized in that having a circular cone bodily form centralized positioning platform on the described platform, the steel ball positioning table of positioning bearing steel ball when being provided with assembling in the outer ring of centralized positioning platform; Described steel ball positioning table is a stepped ramp type, and step is low inside and high outside two stage steps.
The external diameter of described steel ball positioning table is D2 ', D2 '=D2 * 0.98-0.6, and wherein D2 is the straight warp of bearing outer ring endoporus, and precision 0.1, the upper deviation are 0, and lower deviation is-0.2.
The interior level step external diameter of described steel ball positioning table is Dc1 ', Dc1 '=Dc1 * 0.998-0.2, and wherein Dc1 is the retainer diameter of bore, and precision 0.1, the upper deviation are 0, and lower deviation is-0.1.
The interior level step internal diameter of described steel ball positioning table is di ', di '=di+2 * t+0.2, and wherein di is the bearing inner race raceway diameter, and t is a bear inner ring grooved railway fore shaft height, and precision 0.1, the upper deviation are+0.2, and lower deviation is 0.
The diameter of the bigger bottom surface of the stage body of described centralized positioning platform is d ', d '=d * 0.998-0.2, and wherein d is the bearing inner race diameter, and precision 0.1, the upper deviation are 0, and lower deviation is-0.1.
The diameter of the less end face of the stage body of described centralized positioning platform is Δ c ', Δ c '=Δ c/2, and wherein Δ c is a retainer pocket bore dia, precision 1.
The diameter of described assembling mould platform is D ', D '=D * 1.01+2, and wherein D is a bearing outer diameter, precision 1.
Described assembling mould platform total height is B1 ', B1 '=B * 1.25+20, and wherein B is the bearing inner race height, precision 1.
The height of described circular cone bodily form centralized positioning platform is B ', B '=B * 1.05+0.5, and wherein B is the bearing inner race height, precision 1.
The height of described circular cone bodily form centralized positioning platform base cylinder is B2 ', B2 '=B/2+ Δ c/2-(Dw2-(Dc1/2-d/2)
2)
1/2, wherein B is the bearing inner race height, and Δ c is a retainer pocket bore dia, and Dw is a steel ball size, and Dc1 is the retainer diameter of bore, and d is the bearing inner race diameter, and precision 0.1, the upper deviation are 0, and lower deviation is-0.1.
Described steel ball positioning table top has chamfering, and chamfering is α, α=15 °, precision 1,1 ° of tolerance+; The interior level step thicknesses at chamfering place is Bc1 ', Bc1 '=Bc/2+ Δ c/2-Dw/COS (α), and wherein Bc is the retainer height, and Δ c is a retainer pocket bore dia, and Dw is a steel ball size; Precision 0.01, the upper deviation are 0, and lower deviation is-0.1.
The interior level step thicknesses of described steel ball positioning table is Bc ', and Bc '=(B-Bc)/2, wherein B is the bearing inner race height, and Bc is the retainer height, precision 0.01, deviation ± 0.04.
The assembly method of B7 class angular contact ball bearing comprises the steps:
A) retainer is inserted in vertically on the assembling mould;
B) outer ring that will heat is enclosed within on the retainer vertically;
C) steel ball is slided along assembling die tip conical section rock into the position;
D) inner ring is inserted vertically.
The assembling mold materials adopts teflon, with minimizing outer ring temperature conduction, and guarantees wear-resisting, the resistance and high temperature resistance property of assembling and positioning mould.
Assembling mould bottom can be processed into trace and be with protrudingly, so that rotate its external diameter, makes its rolling physical efficiency enter the pocket hole of retainer equably.
Beneficial effect, because assembling can accurately be located each part on jig, do not need to adhere to grease more yet, installation time is accelerated simultaneously, B7 class angular contact ball bearing assembling and positioning mould guaranteed that whole process allows to finish in the amount of recovery scope in the outer ring cooling, so can play the effect of assembling fast and accurately.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the structural representation of B7 class angular contact ball bearing assembly die of the present invention;
Fig. 2 is the structural representation of B7 class angular contact ball bearing assemble sequence of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Be example with the B7305 angular contact ball bearing below, describe the present invention in detail.
Referring to Fig. 1, B7 class angular contact ball bearing assembly die comprises it is characterized in that the assembling mould platform of a circle, has a circular cone bodily form centralized positioning platform on the described platform, the steel ball positioning table of positioning bearing steel ball when being provided with assembling in the outer ring of centralized positioning platform; Described steel ball positioning table is a stepped ramp type, and step is low inside and high outside two stage steps.
The formula of relative dimensions is as follows:
The external diameter of described steel ball positioning table is D2 ', D2 '=D2 * 0.98-0.6, and wherein D2 is the straight warp of bearing outer ring endoporus, and precision 0.1, the upper deviation are 0, and lower deviation is-0.2.
The interior level step external diameter of described steel ball positioning table is Dc1 ', Dc1 '=Dc1 * 0.998-0.2, and wherein Dc1 is the retainer diameter of bore, and precision 0.1, the upper deviation are 0, and lower deviation is-0.1.
The interior level step internal diameter of described steel ball positioning table is di ', di '=di+2 * t+0.2, and wherein di is the bearing inner race raceway diameter, and t is a bear inner ring grooved railway fore shaft height, and precision 0.1, the upper deviation are+0.2, and lower deviation is 0.
The diameter of the bigger bottom surface of the stage body of described centralized positioning platform is d ', d '=d * 0.998-0.2, and wherein d is the bearing inner race diameter, and precision 0.1, the upper deviation are 0, and lower deviation is-0.1.
The diameter of the less end face of the stage body of described centralized positioning platform is Δ c ', Δ c '=Δ c/2, and wherein Δ c is a retainer pocket bore dia, precision 1.
The diameter of described assembling mould platform is D ', D '=D * 1.01+2, and wherein D is a bearing outer diameter, precision 1.
Described assembling mould platform total height is B1 ', B1 '=B * 1.25+20, and wherein B is the bearing inner race height, precision 1.
The height of described circular cone bodily form centralized positioning platform is B ', B '=B * 1.05+0.5, and wherein B is the bearing inner race height, precision 1.
The height of described circular cone bodily form centralized positioning platform base cylinder is B2 ', B2 '=B/2+ Δ c/2-(Dw2-(Dc1/2-d/2)
2)
1/2, wherein B is the bearing inner race height, and Δ c is a retainer pocket bore dia, and Dw is a steel ball size, and Dc1 is the retainer diameter of bore, and d is the bearing inner race diameter, and precision 0.1, the upper deviation are 0, and lower deviation is-0.1.
Described steel ball positioning table top has chamfering, and chamfering is α, α=15 °, precision 1,1 ° of tolerance+; The interior level step thicknesses at chamfering place is Bc1 ', Bc1 '=Bc/2+ Δ c/2-Dw/COS (α), and wherein Bc is the retainer height, and Δ c is a retainer pocket bore dia, and Dw is a steel ball size; Precision 0.01, the upper deviation are 0, and lower deviation is-0.1.
The interior level step thicknesses of described steel ball positioning table is Bc ', and Bc '=(B-Bc)/2, wherein B is the bearing inner race height, and Bc is the retainer height, precision 0.01, deviation ± 0.04.
The part parameter of B7305 angular contact ball bearing is as follows:
d＝25
D＝62
B＝17
Dw＝11.509
D2＝50.98
di＝31.84
t＝0.09
Dc1＝41.95
Bc＝15.80
Δc＝11.83
The substitution formula calculates, and draws:
D2′＝50.98×0.98-0.6＝49.4
Dc1′＝41.95×0.998-0.2＝41.7
di′＝31.84+2×0.09+0.2＝32.2
d′＝25×0.998-0.2＝24.8
Δc′＝6
D′＝62×1.01+2＝65
B1′＝17×1.05+20＝38
B′＝17×1.05+0.5＝18
The substitution of B2 ' parameter calculates 6.0
α＝15°±1°
The substitution of Bc1 ' parameter calculates 1.9
Bc′＝(17-15.80)/2＝0.60
Referring to Fig. 2, the assembling mould shape after the typing, can be carried out the assembling of B7 class angular contact ball bearing according to result of calculation; The assembly method of B7 class angular contact ball bearing comprises the steps:
A is inserted in retainer 2 on the assembling mould 1 vertically;
The outer ring 3 that b will heat is enclosed within on the retainer 2 vertically;
C slides steel ball 4 and rocks into the position along assembling mould 1 apex cone body portion;
D inserts inner ring 5 vertically.
The assembling mold materials adopts teflon, with minimizing outer ring temperature conduction, and guarantees wear-resisting, the resistance and high temperature resistance property of assembling and positioning mould.
Assembling mould bottom can be processed into trace and be with protrudingly, so that rotate its external diameter, makes its rolling physical efficiency enter the pocket hole of retainer equably.
Compared with prior art, because assembling can accurately be located each part on jig, do not need to adhere to grease more yet, installation time is accelerated simultaneously, B7 class angular contact ball bearing assembling and positioning mould guaranteed that whole process allows to finish in the amount of recovery scope in the outer ring cooling, so can play the effect of assembling fast and accurately.
More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (12)
1, B7 class angular contact ball bearing assembly die comprises the assembling mould platform of a circle it is characterized in that having a circular cone bodily form centralized positioning platform on the described platform, the steel ball positioning table of positioning bearing steel ball when being provided with assembling in the outer ring of centralized positioning platform; Described steel ball positioning table is a stepped ramp type, and step is low inside and high outside two stage steps.
2, B7 class angular contact ball bearing assembly die according to claim 1 is characterized in that, the external diameter of described steel ball positioning table is D2 ', D2 '=D2 * 0.98-0.6, wherein D2 is the straight warp of bearing outer ring endoporus, precision 0.1, the upper deviation is 0, and lower deviation is-0.2.
3, B7 class angular contact ball bearing assembly die according to claim 1 is characterized in that, the interior level step external diameter of described steel ball positioning table is Dc1 ', Dc1 '=Dc1 * 0.998-0.2, wherein Dc1 is the retainer diameter of bore, precision 0.1, the upper deviation is 0, and lower deviation is-0.1.
4, B7 class angular contact ball bearing assembly die according to claim 1, it is characterized in that, the interior level step internal diameter of described steel ball positioning table is di ', di '=di+2 * t+0.2, wherein di is the bearing inner race raceway diameter, and t is a bear inner ring grooved railway fore shaft height, precision 0.1, the upper deviation is+0.2, and lower deviation is 0.
5, B7 class angular contact ball bearing assembly die according to claim 1 is characterized in that, the diameter of the bigger bottom surface of the stage body of described centralized positioning platform is d ', d '=d * 0.998-0.2, wherein d is the bearing inner race diameter, precision 0.1, the upper deviation is 0, and lower deviation is-0.1.
6, B7 class angular contact ball bearing assembly die according to claim 1 is characterized in that, the diameter of the less end face of the stage body of described centralized positioning platform is Δ c ', Δ c '=Δ c/2, and wherein Δ c is a retainer pocket bore dia, precision 1.
7, B7 class angular contact ball bearing assembly die according to claim 1 is characterized in that, the diameter of described assembling mould platform is D ', D '=D * 1.01+2, and wherein D is a bearing outer diameter, precision 1.
8, B7 class angular contact ball bearing assembly die according to claim 1 is characterized in that, described assembling mould platform total height is B1 ', B1 '=B * 1.25+20, and wherein B is the bearing inner race height, precision 1.
9, B7 class angular contact ball bearing assembly die according to claim 1 is characterized in that, the height of described circular cone bodily form centralized positioning platform is B ', B '=B * 1.05+0.5, and wherein B is the bearing inner race height, precision 1.
10, B7 class angular contact ball bearing assembly die according to claim 1, it is characterized in that the height of described circular cone bodily form centralized positioning platform base cylinder is B2 ', B2 '=B/2+ Δ c/2-(Dw2-(Dc1/2-d/2) 2) 1/2, wherein B is the bearing inner race height, Δ c is a retainer pocket bore dia, and Dw is a steel ball size, and Dc1 is the retainer diameter of bore, d is the bearing inner race diameter, precision 0.1, the upper deviation are 0, and lower deviation is-0.1.
11, B7 class angular contact ball bearing assembly die according to claim 1 is characterized in that, described steel ball positioning table top has chamfering, and chamfering is α, α=15 °, precision 1,1 ° of tolerance+; The interior level step thicknesses at chamfering place is Bc1 ', Bc1 '=Bc/2+ Δ c/2-Dw/COS (α), and wherein Bc is the retainer height, and Δ c is a retainer pocket bore dia, and Dw is a steel ball size; Precision 0.01, the upper deviation are 0, and lower deviation is-0.1.
12, B7 class angular contact ball bearing assembly die according to claim 1 is characterized in that, the interior level step thicknesses of described steel ball positioning table is Bc ', Bc '=(B-Bc)/2, wherein B is the bearing inner race height, and Bc is the retainer height, precision 0.01, deviation ± 0.04.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810037125A CN100578034C (en) | 2008-05-08 | 2008-05-08 | B7 angular contact ball bearing assembly die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810037125A CN100578034C (en) | 2008-05-08 | 2008-05-08 | B7 angular contact ball bearing assembly die |
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| Publication Number | Publication Date |
|---|---|
| CN101265950A CN101265950A (en) | 2008-09-17 |
| CN100578034C true CN100578034C (en) | 2010-01-06 |
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|---|---|---|---|
| CN200810037125A Expired - Fee Related CN100578034C (en) | 2008-05-08 | 2008-05-08 | B7 angular contact ball bearing assembly die |
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| CN102588439A (en) * | 2011-06-16 | 2012-07-18 | 李东炬 | Production process for high-precision angular contact ceramic ball bearing |
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| CN112570982A (en) * | 2020-12-28 | 2021-03-30 | 镇江裕久智能装备股份有限公司 | Bearing thermal expansion and cold shrinkage type assembly process |
| CN113513540B (en) * | 2021-04-12 | 2022-11-25 | 山东福马轴承有限公司 | Bearing assembly capable of quickly applying oil |
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Granted publication date: 20100106 Termination date: 20200508 |