CN106041435A - Thin-walled flexible bearing machining technology - Google Patents
Thin-walled flexible bearing machining technology Download PDFInfo
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- CN106041435A CN106041435A CN201610680477.8A CN201610680477A CN106041435A CN 106041435 A CN106041435 A CN 106041435A CN 201610680477 A CN201610680477 A CN 201610680477A CN 106041435 A CN106041435 A CN 106041435A
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- Prior art keywords
- ring
- thin
- walled
- processing
- chamfering
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- 238000003754 machining Methods 0.000 title abstract description 8
- 238000005516 engineering processes Methods 0.000 title abstract description 6
- 238000000034 methods Methods 0.000 claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching Effects 0.000 claims description 6
- 230000002093 peripheral Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000000875 corresponding Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007781 pre-processing Methods 0.000 description 3
- 239000003638 reducing agents Substances 0.000 description 3
- 206010021703 Indifference Diseases 0.000 description 2
- 238000010586 diagrams Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
Description
Technical field
The present invention relates to a kind of flexible bearing technical equipment field, particularly to a kind of thin wall flexibility bearing processing technique.
Background technology
In robot device, harmonic speed reducer relies on its simple in construction, size is little, noise is little, gear ratio is big, transmission is smart Spending high and efficiency advantages of higher and be widely used, wherein, harmonic speed reducer includes wave producer, rigid gear, flexibility Gear and flexible bearing, internal ring and the outer shroud of flexible bearing are the most relatively thin；For harmonic speed reducer, flexible bearing is installed on On corresponding cam and the rolling bearing of corresponding deformation can be produced with cam profile curve shape.
In prior art, the assembling of thin wall flexibility bearing is a key technology bottleneck, because steel ball is than general deep-groove ball Bearing is many, it is desirable to do not have steel ball during retainer will not drop out raceway, and life requirements during ovalizing deflection to be met, it is necessary to Reducing the stress during its assembling remaining, the Internal and external cycle gap maximum that tradition assembling mode is formed when using pressure outer ring, top is put The method entering steel ball；The deficiency that there are is: 1. clamping apparatus make require complicated and requirement on machining accuracy is high；2. erection stress Height, causes service life low；3. grinding debugging is complicated and percent defective is high；4. during Vehicle Processing chamfering, stress is higher；5. fall outside outer ring Angle is sufficiently oily, easy scratch flexbile gear, and this stress at chamfering of lasso is relatively big, is easily broken off.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of thin wall flexibility bearing processing technique, for prior art In deficiency, during roughing, the chamfering on thin-walled outer ring, thin-walled inner ring is carried out preprocessing process；Processed at mill Cheng Zhong, becomes R angle, outer ring to the outer circumference surface ground finish of thin-walled outer ring；Using frock to use draws top, outer ring inner ring mode to assemble Steel ball；Thin-walled outer ring and thin-walled inner ring stress greatly improve, and stress during assembling steel ball reaches minimum, significantly extends flexible shaft The service life held.
For reaching above-mentioned purpose, technical scheme is as follows: a kind of thin wall flexibility bearing processing technique, including thin-walled Inner ring work flow, thin-walled outer ring work flow, draw top assemble flow, inspection process；It is characterized in that:
1, thin-walled inner ring work flow is:
1.1 inner ring Vehicle Processings, carry out external diameter Vehicle Processing, internal diameter Vehicle Processing, both ends of the surface Vehicle Processing successively, fall inner ring blank Angle Vehicle Processing, through the Vehicle Processing of blank is obtained interior collar member, the outside Vehicle Processing of described interior collar member has outer ring chamfering and inner ring Chamfering；
1.2 heat treatments, by the interior collar member in step 1.1, are carried out quenching temper according to technological requirement；
1.3 mill processing, to the interior collar member after Overheating Treatment, successively carry out roughly grind internal diameter, corase grind external diameter, fine grinding internal diameter, Fine grinding external diameter, eventually mill raceway, eventually mill internal diameter；Thin-walled inner ring, the outer circumference surface of described thin-walled inner ring is obtained after grinding Upper mill is machined with raceway；
2, thin-walled outer ring work flow is:
2.1 outer ring Vehicle Processings, carry out external diameter Vehicle Processing, internal diameter Vehicle Processing, both ends of the surface Vehicle Processing successively, fall outer ring blank Angle Vehicle Processing, through the Vehicle Processing of blank is obtained outer collar member, the outside Vehicle Processing of described outer collar member has outer ring chamfering and inner ring Chamfering；
2.2 heat treatments, by the outer collar member in step 2.1, are carried out quenching temper according to technological requirement；
2.3 mill processing, to the outer collar member after Overheating Treatment, successively carry out roughly grind internal diameter, corase grind external diameter, fine grinding internal diameter, Fine grinding external diameter, eventually mill external diameter and R angle, outer ring, eventually mill chamfering, eventually mill raceway；Thin-walled outer ring is obtained after grinding, described On the inner peripheral surface of thin-walled outer ring, mill is machined with raceway, and on the outer circumference surface of described thin-walled outer ring, mill is machined with R angle, outer ring；
3, draw the top assemble flow to be: to be loaded in thin-walled outer ring by thin-walled inner ring set, described in draw top assembling be to use assembler Dress simultaneously acts on thin-walled outer ring and thin-walled inner ring, radially produces outer ring pulling force and inner ring top power；Described thin-walled outer ring is at dress Under the outer ring pulling force effect of allotment of labor's dress, there is ovalizing deflection；Described thin-walled inner ring, under the inner ring top power effect of assembly tooling, is sent out Raw ovalizing deflection；Described thin-walled outer ring long axis direction and thin-walled inner ring short-axis direction, under the effect of assembly tooling, form assembling Section；By load segment, multiple steel balls are loaded into inside raceway one by one；
4, inspection process is: detect by feel, flexible bearing operating should brisk, freely, without noise, its inside/outside diameter size is smart Degree and the detection of running accuracy instrument meet P4 level prescription；The outer ring pulling force transverse of its assembly tooling, inner ring top power The detection of ellipse short shaft dimensional accuracy instrument meets technological standards requirement.
Described outer ring chamfering, inner ring chamfering use and have machined before the heat treatment.
Grinding process machine-shaping is passed through at R angle, outer ring on the outer circumference surface of described thin-walled outer ring.
Outer ring pulling force and inner ring top power are passed through in described assembly tooling so that thin-walled inner ring, the deformation of thin-walled outer ring are in During little state, just can load whole steel ball.
Described load segment load finally several steel balls time, after deformation the oval major axis of thin-walled outer ring and deformation after thin-walled The oval short axle of inner ring is in same orientation, it is ensured that the deflection of thin-walled outer ring and thin-walled inner ring is minimum.
The operation principle of the present invention is: the chamfering of flexible bearing completes rather than Vehicle Processing after corase grind before heat treatment, Can reduce stress and the burr of Vehicle Processing, and the R angle, outer ring of outer ring outer diameter face processes rather than Vehicle Processing becomes general through mill Chamfering, the outer diameter face of thin-walled outer ring is rounder and more smooth with end face transition first, and second stress distribution is more preferable the least；During assembling steel ball Different with general bearing assembling, its steel ball up to 23, it is necessary to after making thin-walled inner ring, thin-walled outer ring synchronize deformation, ability Whole steel balls are loaded, and the present invention uses and draws outer ring to push up inner ring mode so that just can be by all during thin-walled race deformation minimum Steel ball loads, its principle is so that the deformation of thin-walled outer ring loads steel ball in oval major axis one end, simultaneously its ellipse Another longitudinal end is also fitted tightly by steel ball；Further, the short axle that thin-walled inner ring has exactly deformed in place of putting into steel ball Place, two circle deformation minimums now；Using frock to use draws top, outer ring inner ring mode to assemble steel ball so that mill adds the frock in man-hour Simply, almost with the bearing frock indifference of non-thin-walled, it is low that assembly tooling manufactures processing request, and unit manufacturing cost is low；Mill adds The adjustment method simple and stable in man-hour, raising efficiency and quality；R angle, outer ring is formed so that external diameter during grinding thin-walled outer ring external diameter Face and end face rounding off, to possible without any scratch between the most friction tight flexbile gear, and stress remnants are less, to flexibility Bearing and the quality of whole harmonic wave speed reducing machine and reliability are greatly improved；Top technique of drawing during assembling makes race deformation remaining Stress is preferably minimized, because this technique drawing top, outer ring inner ring makes assembling define necessary outer ring when putting into steel ball Small deformation amount, therefore greatly reduce the residual stress brought because of assembling, the life-span of product has also been effectively ensured.
By technique scheme, technical solution of the present invention provides the benefit that: during roughing, to thin-walled outside Chamfering on circle, thin-walled inner ring carries out preprocessing process；In the mill course of processing, the outer circumference surface ground finish to thin-walled outer ring Become R angle, outer ring；Assembly tooling is used to draw top, outer ring inner ring mode to assemble steel ball, to flexible bearing and whole harmonic wave speed reducing machine Quality and reliability are greatly improved, and the top technique of drawing during assembling makes race deformation residual stress be preferably minimized, because this The technique drawing top, outer ring inner ring makes assembling define necessary outer ring least amount of deformation when putting into steel ball, therefore greatly reduces The residual stress brought because of assembling, has also been effectively ensured the life-span of product.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be in embodiment or description of the prior art The required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only some realities of the present invention Execute example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings Obtain other accompanying drawing.
Fig. 1 is a kind of thin wall flexibility bearing sectional view schematic diagram disclosed in the embodiment of the present invention；
Fig. 2 is a kind of thin wall flexibility bearing thin-walled inner ring generalized section disclosed in the embodiment of the present invention；
Fig. 3 is a kind of thin wall flexibility bearing thin-walled outer ring generalized section disclosed in the embodiment of the present invention；
Fig. 4 is a kind of thin wall flexibility bearing processing technique schematic diagram disclosed in the embodiment of the present invention.
Numeral and the corresponding component title represented by letter in figure:
1. thin-walled outer ring 2. thin-walled inner ring 3. steel ball 4. load segment
5. R angle, chamfering 7. inner ring chamfering 8. outer ring, raceway 6. outer ring
9. outer ring pulling force 10. inner ring top power
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is carried out clearly and completely Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the present invention In embodiment, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise Example, broadly falls into the scope of protection of the invention.
According to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the invention provides a kind of thin wall flexibility bearing processing technique, including in thin-walled Enclose work flow, thin-walled outer ring work flow, draw top assemble flow, inspection process；
1, thin-walled inner ring 2 work flow is:
1.1 inner ring Vehicle Processings, carry out external diameter Vehicle Processing, internal diameter Vehicle Processing, both ends of the surface Vehicle Processing successively, fall inner ring blank Angle Vehicle Processing, through the Vehicle Processing of blank is obtained interior collar member, the outside Vehicle Processing of described interior collar member has outer ring chamfering 6 and inner ring Chamfering 7；
1.2 heat treatments, by the interior collar member in step 1.1, are carried out quenching temper according to technological requirement；
1.3 mill processing, to the interior collar member after Overheating Treatment, successively carry out roughly grind internal diameter, corase grind external diameter, fine grinding internal diameter, Fine grinding external diameter, eventually mill raceway, eventually mill internal diameter；Thin-walled inner ring 2, the excircle of described thin-walled inner ring 2 is obtained after grinding On face, mill is machined with raceway 5；
2, thin-walled outer ring 1 work flow is:
2.1 outer ring Vehicle Processings, carry out external diameter Vehicle Processing, internal diameter Vehicle Processing, both ends of the surface Vehicle Processing successively, fall outer ring blank Angle Vehicle Processing, through the Vehicle Processing of blank is obtained outer collar member, the outside Vehicle Processing of described outer collar member has outer ring chamfering 6 and inner ring Chamfering 7；
2.2 heat treatments, by the outer collar member in step 2.1, are carried out quenching temper according to technological requirement；
2.3 mill processing, to the outer collar member after Overheating Treatment, successively carry out roughly grind internal diameter, corase grind external diameter, fine grinding internal diameter, Fine grinding external diameter, eventually mill external diameter and R angle, outer ring 8, eventually mill outer ring chamfering 6, eventually mill raceway 5；Obtain outside thin-walled after grinding Circle 1, on the inner peripheral surface of described thin-walled outer ring 1, mill is machined with raceway 5, the outer circumference surface of described thin-walled outer ring 1 grinds and is machined with R angle, outer ring 8；
3, draw top assemble flow be: thin-walled inner ring 2 is overlapped loading thin-walled outer ring 1 in, described in draw top assembling be use assembling Frock simultaneously acts on thin-walled outer ring 1 and thin-walled inner ring 2, radially produces outer ring pulling force 9 and inner ring top power 10；Outside described thin-walled Under the outer ring pulling force 9 of assembly tooling acts on, there is ovalizing deflection in circle 1；Described thin-walled inner ring 2 is in the inner ring top power of assembly tooling Under 10 effects, there is ovalizing deflection；Described thin-walled outer ring 1 long axis direction and thin-walled inner ring 2 short-axis direction are at the work of assembly tooling Under with, form load segment 4；By load segment 4, multiple steel balls 3 are loaded into inside raceway 5 one by one；
4, inspection process is: detect by feel, flexible bearing operating should brisk, freely, without noise, its inside/outside diameter size is smart Degree and the detection of running accuracy instrument meet P4 level prescription；Outer ring pulling force 9 transverse of its assembly tooling, inner ring top power 10 ellipse short shaft dimensional accuracy instrument detections meet technological standards requirement.
Described outer ring chamfering 6, inner ring chamfering 7 use and have machined before the heat treatment.
R angle, outer ring 8 on the outer circumference surface of described thin-walled outer ring 1 is by grinding process machine-shaping.
Described assembly tooling pass through outer ring pulling force 9 and inner ring top power 10 so that thin-walled inner ring 2, thin-walled outer ring 1 deformation at When minimum state, just can load whole steel ball.
Described load segment 4 load finally several steel balls time, after deformation the oval major axis of thin-walled outer ring 1 and deformation after thin The oval short axle of wall inner ring 2 is in same orientation, it is ensured that the deflection of thin-walled outer ring 1 and thin-walled inner ring 2 is minimum.
The operating procedure that is embodied as of the present invention is: the chamfering of flexible bearing completes rather than before heat treatment at corase grind Rear Vehicle Processing, can reduce stress and the burr of Vehicle Processing, and the R angle, outer ring of outer ring outer diameter face processes rather than car through mill Being processed into general chamfering, the outer diameter face of thin-walled outer ring 1 is rounder and more smooth with end face transition first, and second stress distribution is the most more Little；Assemble different with general bearing during assembling steel ball 3, its steel ball 3 up to 23, it is necessary to make thin-walled inner ring 2, thin-walled outer ring After 1 synchronizes deformation, whole steel balls could be loaded, and the present invention uses and draws outer ring to push up inner ring mode so that thin-walled outer ring 1 deforms Just can be loaded by whole steel balls time minimum, its principle is so that the deformation of thin-walled outer ring 1 loads steel in oval major axis one end Ball 3, another longitudinal end of its ellipse is also fitted tightly by steel ball 3 simultaneously；Further, thin-walled inner ring 2 put into steel ball it At the short axle that place has exactly deformed, two circle deformation minimums now；Using assembly tooling to use draws top, outer ring inner ring mode to fill Joining steel ball 3 so that the frock that mill adds man-hour is simple, almost with the bearing frock indifference of non-thin-walled, assembly tooling manufacture is processed Requiring low, unit manufacturing cost is low；Mill adds the adjustment method simple and stable in man-hour, raising efficiency and quality；Grinding thin-walled outer ring 1 Form R angle, outer ring 8 during external diameter so that outer diameter face and end face rounding off, between the most friction tight flexbile gear without any scratch May, and stress remnants are less, are greatly improved flexible bearing and the quality of whole harmonic wave speed reducing machine and reliability；Assembling Time top technique of drawing race deformation residual stress is preferably minimized because this draw outer ring top inner ring technique assembling is put Define necessary outer ring least amount of deformation when entering steel ball, therefore greatly reduce the residual stress brought because of assembling, the most effectively Ensure that the life-span of product.
By above-mentioned specific embodiment, the invention has the beneficial effects as follows: during roughing, to thin-walled outer ring, thin-walled Chamfering on inner ring carries out preprocessing process；In the mill course of processing, outside the outer circumference surface ground finish of thin-walled outer ring is become Circle R angle；Use assembly tooling to draw top, outer ring inner ring mode to assemble steel ball, to the quality of flexible bearing and whole harmonic wave speed reducing machine and Reliability is greatly improved, and the top technique of drawing during assembling makes race deformation residual stress be preferably minimized, and draws outer ring because this The technique of top inner ring makes assembling define necessary outer ring least amount of deformation when putting into steel ball, therefore greatly reduces because of assembling The residual stress brought, has also been effectively ensured the life-span of product.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention. Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one The widest scope caused.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610680477.8A CN106041435A (en) | 2016-08-18 | 2016-08-18 | Thin-walled flexible bearing machining technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610680477.8A CN106041435A (en) | 2016-08-18 | 2016-08-18 | Thin-walled flexible bearing machining technology |
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| CN106041435A true CN106041435A (en) | 2016-10-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392502A (en) * | 2016-12-09 | 2017-02-15 | 安顺市虹翼特种钢球制造有限公司 | Machining method of high-speed and high-temperature precise double-half inner ring ball bearing |
| CN106801706A (en) * | 2017-03-02 | 2017-06-06 | 江苏万达特种轴承有限公司 | A kind of processing method of the thin-wall bearing for industrial robot |
| CN107520582A (en) * | 2017-08-23 | 2017-12-29 | 沈阳鼓风机集团齿轮压缩机有限公司 | The processing method and device in bearing thrust face |
| CN107738069A (en) * | 2017-09-28 | 2018-02-27 | 无锡三立轴承股份有限公司 | High precision machines people's reductor thin-wall bearing method for grinding |
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| CN102996625A (en) * | 2012-11-08 | 2013-03-27 | 哈尔滨轴承集团公司 | Thin-wall angular contact full ball bearing and processing method thereof |
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| CN104776116A (en) * | 2015-05-04 | 2015-07-15 | 刘和义 | Flexible bearing, application and assembly method based on full-ball design |
| CN204852040U (en) * | 2015-08-04 | 2015-12-09 | 襄阳振本传动设备有限公司 | Biserial thin wall angular contact ball bearing assembly quality |
| CN105234637A (en) * | 2015-11-10 | 2016-01-13 | 上海斐赛轴承科技有限公司 | Thin-wall bearing manufacturing method and method for machining thin-wall inner ring/outer ring of thin-wall bearing as well as precision flexible bearing |
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2016
- 2016-08-18 CN CN201610680477.8A patent/CN106041435A/en not_active Application Discontinuation
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| DE102004006490B3 (en) * | 2004-02-10 | 2005-04-21 | Süddeutsche Gelenkscheibenfabrik GmbH & Co. KG | Flexible bearing mounting for support of rotating shaft allows limited radial and axial mounting and has three equispaced resilient support blocks between inner and outer rings and has connecting members |
| CN102003468A (en) * | 2010-11-27 | 2011-04-06 | 洛阳轴研科技股份有限公司 | Method for assembling outer ring axial broken thin-wall bearing |
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| CN104162766A (en) * | 2014-07-15 | 2014-11-26 | 安庆银泰轴承有限公司 | Production technology of high-precision deep groove ball bearing |
| CN104776116A (en) * | 2015-05-04 | 2015-07-15 | 刘和义 | Flexible bearing, application and assembly method based on full-ball design |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106392502A (en) * | 2016-12-09 | 2017-02-15 | 安顺市虹翼特种钢球制造有限公司 | Machining method of high-speed and high-temperature precise double-half inner ring ball bearing |
| CN106801706A (en) * | 2017-03-02 | 2017-06-06 | 江苏万达特种轴承有限公司 | A kind of processing method of the thin-wall bearing for industrial robot |
| CN107520582A (en) * | 2017-08-23 | 2017-12-29 | 沈阳鼓风机集团齿轮压缩机有限公司 | The processing method and device in bearing thrust face |
| CN107738069A (en) * | 2017-09-28 | 2018-02-27 | 无锡三立轴承股份有限公司 | High precision machines people's reductor thin-wall bearing method for grinding |
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Application publication date: 20161026 |