CN108568489A - A kind of taper roll bearing outer ring precision cold-rolled manufacturing process - Google Patents
A kind of taper roll bearing outer ring precision cold-rolled manufacturing process Download PDFInfo
- Publication number
- CN108568489A CN108568489A CN201810293431.XA CN201810293431A CN108568489A CN 108568489 A CN108568489 A CN 108568489A CN 201810293431 A CN201810293431 A CN 201810293431A CN 108568489 A CN108568489 A CN 108568489A
- Authority
- CN
- China
- Prior art keywords
- ring
- billet
- bellmouth
- diameter
- ring billet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000005097 cold rolling Methods 0.000 claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 13
- 230000000875 corresponding Effects 0.000 claims description 12
- 239000003638 reducing agent Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 210000001331 Nose Anatomy 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000010599 Verbascum thapsus Nutrition 0.000 description 1
- 240000000969 Verbascum thapsus Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001010 compromised Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
Abstract
The invention discloses a kind of taper roll bearing outer ring precision cold-rolled manufacturing process, include the following steps：S1, ring billet design：Ring billet bellmouth and ring billet cylindrical hole will be coaxially provided in ring billet, ring billet cylindrical hole is connect with the miner diameter end of ring billet bellmouth, and the diameter of ring billet cylindrical hole is less than the diameter of ring billet bellmouth miner diameter end；S2, cold roll forming：Cold rolling pass is made of the working face of driven roller and core roller, the shape of working surface of driven roller is consistent with outer ring ring external surface shape, the shape of working surface of core roller is consistent with outer ring ring inner surface configuration, driven roller and core roller are both designed as I-shaped, ring billet is put between driven roller and core roller, driven roller and core roller upper and lower ends carry out axial constraint to ring billet, and driven roller rotates, core roller does radial feed movement simultaneously, and cold roll forming is carried out to ring billet.The present invention has the advantages that forming accuracy height, Improving The Quality of Products, stock utilization and processing efficiency.
Description
Technical field
The invention belongs to bearing mnanufacture technical fields, and in particular to a kind of taper roll bearing outer ring precision cold-rolled forming side
Method.
Background technology
Taper roll bearing as the quasi-representative rolling bearing that can bear diameter, axial connected load, automobile, milling train,
Mine, metallurgical equipment field have a wide range of applications, and equipping bearing transmission particularly with high-speed overload plays an important role.Axis
Bearing ring (including inner ring and outer ring) is the matrix of loading ability of bearing, has conclusive shadow to the military service performance of bearing and service life
It rings, is the core of bearing mnanufacture.Since conical roller bearing ring is complex-shaped, cut after generally using hot forming in industrial production
The mode of processing is cut, wherein heat forming technology is mainly hot rolling forming after forging extruding forming or forging extruding base.
There are following aobvious in terms of Technical Economy and forming quality for traditional conical roller bearing ring hot forming mode
Work problem：1, high energy consumption, scaling loss is big, and stock utilization is low；2, forming accuracy is low, and cutting output is big, to the integrality of metal streamline
It destroys big；3, grain structure is more coarse.Heat forming technology problem not only affects bearing ring production efficiency and cost, but also
Its mechanical performance is compromised, bearing military service performance is also affected, particularly with needs in bad working environments such as high speed, heavy duty, impacts
The high-quality taper roll bearing of lower long life serve, existing heat forming technology already cannot be satisfied demand.
Cold rolling ring (abbreviation cold rolling) be used as a kind of advanced precision plastic forming technology, it is not only energy saving, section material, efficiently, and
And complete fine and close metal streamline and thin even grain structure are obtained by room temperature precision form, it can significantly strengthen mechanical property
And fatigue behaviour, the extensive use in bearing ring industrial production, it is to substitute to be thermoformed into as high-performance bearing lasso
Mainstream manufacturing technology.Since bearing steel temperature-room type plasticity is low, cold formability is poor, the cross sectional shape of bearing ring cold roll forming is more simple
It is single, generally rectangular cross-section section and symmetrical odd-shaped cross section.However, conical roller bearing ring has asymmetric abrupt-change cross section geometry special
Point, cold roll forming difficulty is big, proposes very high request to technological design planning, easily generates rolling because design planning is unreasonable
Process unstability warpage, section shape the defects of imperfect, therefore can only simplify shape roll forming machining again, not only consumptive material
It takes, and the metal streamline of complete reasonable layout can not be obtained, cold rolling technology economic effect and product quality are constrained, with circle
Taper roller bearing lasso is that the unsymmetrical section bearing ring precision cold-rolled forming technique of representative is also current high performance bearing system
Making industry, there is an urgent need to capture the key technology of solution.
Invention content
The purpose of the present invention is to provide a kind of taper roll bearing outer ring precision cold-rolled manufacturing process, it is by accurately setting
Cold rolling ring billet and pass, the operation of rolling of making rational planning for are counted, it can be achieved that asymmetric inner cone cross-sectional profile bearing outer ring precision form,
High-precision and complete compact metal streamline are obtained, product manufacturing Technical Economy and capability and performance are improved.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of taper roll bearing outer ring precision cold-rolled manufacturing process, outer ring ring are the interior cylinder for being equipped with ring bellmouth
Body structure, includes the following steps：
S1, ring billet design：Ring billet bellmouth and ring billet cylindrical hole will be coaxially provided in ring billet, ring billet cylindrical hole is bored with ring billet
The miner diameter end in shape hole connects, and the diameter of ring billet cylindrical hole is less than the diameter of ring billet bellmouth miner diameter end, and the total height of ring billet is smaller
In the total height of outer ring ring, it is based on constancy of volume principle, according to each size of each size design ring billet of outer ring ring；
S2, cold roll forming：Cold rolling pass is made of the working face of driven roller and core roller, the shape of working surface of driven roller with it is outer
Ring part external surface shape is consistent, and the shape of working surface of core roller is consistent with outer ring ring inner surface configuration, and driven roller and core roller are equal
It is designed as I-shaped, ring billet is put between driven roller and core roller, the flange of driven roller and core roller upper and lower ends is respectively to ring billet
Both ends of the surface carry out axial constraint, driven roller rotates, while core roller does radial feed movement, is cold rolled to ring billet
Shape obtains outer ring ring.
According to the above technical scheme, in step S1, ring billet size design specifically includes following steps：
S101, the ring bellmouth in the ring of outer ring is divided into fine taper hole and big bellmouth along short transverse, with B, B1、
B2Outer ring ring total height, fine taper hole height, big bellmouth height are indicated respectively, take B1=(0.3~0.5) B, with V, V1、V2
Outer ring ring total volume, the corresponding part ring volume in fine taper hole and the corresponding part ring body of big bellmouth are indicated respectively
Product, then have B=B1+B2, V=V1+V2；
S102, with D0、ds0、dm0、db0Ring billet outer diameter, ring billet cylindrical hole internal diameter are indicated respectively, in ring billet bellmouth miner diameter end
Diameter, ring billet bellmouth bigger diameter end internal diameter, with B0、B10、B20Ring billet total height, ring billet cylindrical hole height and ring billet taper are indicated respectively
Hole height indicates the length of bench that ring billet cylindrical hole is formed with ring billet bellmouth miner diameter end junction, with V with L0、V10、V20Respectively
Indicate ring billet total volume, the corresponding part ring billet volume of ring billet cylindrical hole and the corresponding part ring billet volume of ring billet bellmouth；
Ring billet height designs：B0=B- Δ B, Δ B take 0.2~0.5mm, B10=B0B1/ B, B20=B0-B10；
Ring billet volume meets：V0=V10+V20=V, V10/V20=V1/V2；
Ring billet cylindrical hole internal diameter ds0=ds/ λ, dsFor the diameter of outer ring ring bellmouth miner diameter end, λ is rolling ratio, λ values
It is 1.25~1.35；
Ring billet outer diameter
Length of bench
Ring billet bellmouth miner diameter end internal diameter dm0=ds0+2L；
Ring billet bellmouth bigger diameter end internal diameter
According to the above technical scheme, step S2 includes driven roller design, and the working size of driven roller includes：
Work radius surface Rd=500Vd/πnd,
Cavity height Bd=B,
Cavity lateral width
Draw taper αd=3 °~6 °,
Wherein, VdFor driven roller linear velocity, VdTake 1.1~1.6m/s, ndFor driven roller rotating speed, nd=n/ η, n are equipment electricity
Machine rotating speed, η are equipment speed reducer drive ratio, and B is the total height of outer ring ring, and D is outer ring ring outer diameter, dbIt is bored for outer ring ring
The diameter of shape hole bigger diameter end.
According to the above technical scheme, step S2 includes the design of core roller, and the working size of core roller includes：
Working face small end radius RisMeet
Working face big end radius Rib=Ris+BiTan θ,
Cavity height Bi=B+0.2,
Small end sidewall width
Big end sidewall width Sib=Sis+BiTan θ, θ are the gradient of ring bellmouth,
Core roller draw taper αi=3 °~6 °.
According to the above technical scheme, consider that the limit of equipment is closed centre-to-centre spacing limitation, driven roller work radius surface RdWith core roller
Working face small end radius RisIt is checked as the following formula：
Wherein, LmaxAnd LminThe greatest limit that respectively equipment allows is closed centre-to-centre spacing and least limit is closed centre-to-centre spacing.
According to the above technical scheme, step S2 includes cold-rolled process design, and cold-rolled process is fed using three stage stageds, point
For high speed feed, middling speed feeding and low speed feeding, each stage amount of feeding and feed speed control as the following formula：
High speed feed amount Δ h1=0.3 Δ h, high speed feed speed ν1=(1.5~2) νmin；
Middling speed amount of feeding Δ h2=0.6 Δ h, middling speed feed speed ν2=(1~1.5) νmin；
Low speed amount of feeding Δ h3=0.1 Δ h, low speed feed speed ν3=(0.2~0.5) νmin；
Wherein, Δ h is rolling total feed amount,νminFor least limit feed speed,
The beneficial effect comprise that：Taper roll bearing outer ring precision cold-rolled manufacturing process of the present invention, based on conjunction
Accurate cold rolling ring billet and hole type design, plan in conjunction with rational cold-rolled process, asymmetric inner cone cross-sectional profile may be implemented
Bearing outer ring precision form simplifies cross sectional shape forming compared to tradition, can obtain the metal stream being distributed along cross section profile profiling
Line, and the destruction of follow-up cutting flow line integrality is reduced, while cutting material and expenditure of time can be reduced, to improve
Properties of product, stock utilization and production efficiency.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the structural schematic diagram of China and foreign countries of embodiment of the present invention ring part；
Fig. 2 is China and foreign countries of embodiment of the present invention ring part cold roll forming schematic diagram；
Fig. 3 is the sectional view of the line A-A along Fig. 2；
Fig. 4 is that the structure of ring billet in the embodiment of the present invention shows schematic diagram；
Fig. 5 is the structural schematic diagram of driven roller in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of core roller of the embodiment of the present invention；
Fig. 7 is China and foreign countries of embodiment of the present invention circle Cold ring roll feeding regulation schematic diagram.
In figure：1- driven rollers, 2- core rollers, 3- rings, 4- guide rollers.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As shown in Figure 1, a kind of taper roll bearing outer ring precision cold-rolled manufacturing process, as shown in Figure 1, outer ring ring is interior
Cylindrical structure equipped with ring bellmouth, includes the following steps：
S1, ring billet design：The cross sectional shape of ring billet reflects the original allocation feature of metal volume, also contribute to ring billet with
Pass contact mode has a major impact operation of rolling metal flow and process force stability, for taper roll bearing outside
Precision cold-rolled is enclosed, in order to be conducive to section forming, while controlled rolling process stability, ring billet cross sectional shape are designed as in one kind
Frustum composite construction of the surface with taper and step, as shown in figure 4, ring billet bellmouth and ring billet cylindricality will be coaxially provided in ring billet
Hole, ring billet cylindrical hole are connect with the miner diameter end of ring billet bellmouth, and the diameter of ring billet cylindrical hole is less than ring billet bellmouth miner diameter end
Diameter, the total height of ring billet are slightly less than the total height of outer ring ring, constancy of volume principle are based on, according to each size of outer ring ring
Design each size of ring billet；
S2, cold roll forming：Rolling groove design includes pass structure and working size design, the i.e. knot of driven roller and core roller
Structure and working size ensure simultaneously in order to inhibit ring billet in the operation of rolling to generate axial float or overturning because of discontinuity
Ring end face flatness is shaped, rolling groove uses half-closed pass structure, and driven roller and core roller separately design as " I " fonts
Structure, top and bottom sidewall carry out axial constraint to ring billet outer-diameter end face and internal diameter end face respectively, in addition, driven roller and the work of core roller
Face shape is consistent with forming ring outer surface and inner surface configuration respectively, and as shown in Figure 2 and Figure 3, cold rolling pass is by 1 He of driven roller
The working face of core roller 2 forms, and the shape of working surface of driven roller is consistent with outer ring ring external surface shape, the shape of working surface of core roller
It is consistent with outer ring ring inner surface configuration, driven roller and core roller be both designed as it is I-shaped, by ring billet 3 be put into driven roller and core roller it
Between, and guide roller 4 is set, ring billet is oriented to, the flanges of driven roller and core roller upper and lower ends respectively to the both ends of the surface of ring billet into
Row axial constraint, driven roller rotate, while core roller does radial feed movement, and cold roll forming is carried out to ring billet, obtain outer
Ring part.
In a preferred embodiment of the invention, in step S1, ring billet size design specifically includes following steps：
S101, as shown in Figure 1, the ring bellmouth in the ring of outer ring is divided into fine taper hole and big taper along short transverse
Hole, with B, B1、B2Outer ring ring total height, fine taper hole height, big bellmouth height are indicated respectively, take B1=(0.3~0.5)
B, with V, V1、V2Outer ring ring total volume, the corresponding part ring volume in fine taper hole and the corresponding portion of big bellmouth are indicated respectively
Divide ring volume, then has B=B1+B2, V=V1+V2；
S102, as shown in figure 4, with D0、ds0、dm0、db0Ring billet outer diameter, ring billet cylindrical hole internal diameter, ring billet taper are indicated respectively
Hole miner diameter end internal diameter, ring billet bellmouth bigger diameter end internal diameter, with B0、B10、B20Ring billet total height, ring billet cylindrical hole height are indicated respectively
With ring billet bellmouth height, the length of bench that ring billet cylindrical hole is formed with ring billet bellmouth miner diameter end junction is indicated with L, with
V0、V10、V20Ring billet total volume, the corresponding part ring billet volume of ring billet cylindrical hole and the corresponding part of ring billet bellmouth are indicated respectively
Ring billet volume；
Ring billet height designs：It is put into rolling groove for the ease of ring billet, ring billet height is slightly less than ring height, B0=B- Δs
B, Δ B take 0.2~0.5mm, B10=B0B1/ B, B20=B0-B10；
Ring billet volume meets：V0=V10+V20=V, V10/V20=V1/V2；
The diameter d of ring part bellmouth miner diameter end in additionsWith ring billet cylindrical hole internal diameter ds0The ratio between be used as taper roll bearing
Outer ring cold roll forming rolling is than λ, i.e. λ=ds/ds0, rolling rolling ratio more excessive than reflecting ring billet cold-rolling deformation degree, excessive
Material can be made to damage or even crack because of large plastometric set, too small rolling ratio cannot make metal fully fill rolling groove
So that section is completely shaped, for the cold rolling of taper roll bearing outer ring, in order to inhibit material damage to crack and meanwhile be conducive to section at
Shape, rolling should be controlled than λ in 1.25~1.35 ranges, then have ds0=ds/λ；
Ring billet outer diameter
Length of bench
Ring billet bellmouth miner diameter end internal diameter dm0=ds0+2L；
Ring billet bellmouth bigger diameter end internal diameter
In a preferred embodiment of the invention, step S2 includes driven roller design, as shown in figure 5, the work ruler of driven roller
It is very little to include：
Work radius surface Rd=500Vd/πnd,
Cavity height Bd=B,
Cavity lateral width
Draw taper αd=3 °~6 °,
Wherein, VdFor driven roller linear velocity, VdTake 1.1~1.6m/s, ndFor driven roller rotating speed, nd=n/ η, n are equipment electricity
Machine rotating speed, η are equipment speed reducer drive ratio, and B is the total height of outer ring ring, and D is outer ring ring outer diameter, dbIt is bored for outer ring ring
The diameter of shape hole bigger diameter end.
In a preferred embodiment of the invention, step S2 includes the design of core roller, as shown in fig. 6, the working size packet of core roller
It includes：
Working face small end radius RisMeet
Working face big end radius Rib=Ris+BiTan θ,
Cavity height Bi=B+0.2,
Small end sidewall width
Big end sidewall width Sib=Sis+BiTan θ, θ are the gradient of ring bellmouth,
Core roller draw taper αi=3 °~6 °.
In a preferred embodiment of the invention, consider that the limit of equipment is closed centre-to-centre spacing limitation, driven roller work radius surface
RdWith core roller working face small end radius RisIt is checked as the following formula：
Wherein, LmaxAnd LminThe greatest limit that respectively equipment allows is closed centre-to-centre spacing and least limit is closed centre-to-centre spacing.
Cold-rolled process planning predominantly planning rolling feeding regulation, i.e., carry out the amount of feeding in the operation of rolling and feed speed
Design control, it suffers from rolling process stability, rolling accuracy and rolling efficiency important influence, for taper roller
Bearing outer ring cold rolling should ensure rolling process stability, while take into account rolling accuracy and rolling efficiency first, in the excellent of the present invention
It selects in embodiment, as shown in fig. 7, step S2 includes cold-rolled process design, cold-rolled process is fed using three stage stageds, is divided into
High speed feed, middling speed feeding and low speed feeding, each stage amount of feeding and feed speed control as the following formula：
High speed feed amount Δ h1=0.3 Δ h, high speed feed speed ν1=(1.5~2) νmin；
Middling speed amount of feeding Δ h2=0.6 Δ h, middling speed feed speed ν2=(1~1.5) νmin；
Low speed amount of feeding Δ h3=0.1 Δ h, low speed feed speed ν3=(0.2~0.5) νmin；
Wherein, Δ h is rolling total feed amount,νminFor least limit feed speed,
Using certain model taper roll bearing outer ring as object, the taper roll bearing outer ring outer diameter D, big of cold roll forming is needed
Nose end internal diameter db, small bore end internal diameter ds, height B and taper theta be respectively 83mm, 74.35mm, 67.8mm, 22mm, 12 °, by this
Invention provided method design cold rolling ring billet, pass and planning cold rolling feed regulation.
(1) cold rolling ring billet：Rolling ratio selects 1.3, ring billet height B0For 21.5mm, straight-flanked ring height B10For 5.86mm, rectangle
Ring internal diameter ds0For 50mm, conical ring hole diameter dm0For 53.55mm, conical ring macropore internal diameter db0For 58.41mm, ring billet outer diameter
D0For 70.89mm.
(2) cold rolling pass：Choose driven roller linear velocity VdFor 1.5mm/s, according to equipment motor and speed reducer parameter and
The limit is closed centre-to-centre spacing, determines driven roller radius of clean-up RdFor 103.5mm, cavity height B is determineddFor 22mm, type groove sidewall width
SdFor 1.91mm, draw taper αdIt is 6 °, determines core roller radius of clean-up RisFor 25mm, cavity height BiFor 22.2mm, small end side wall
Width SisFor 1.91mm, big end sidewall width SibFor 2.12mm, draw taper αiIt is 6 °.
(3) cold rolling feeds regulation：In conjunction with the above parameter, determine total feed amount Δ h for 1.546mm, minimum feed speed pole
Limit vminFor 0.605mm/s, then high speed feed stage amount of feeding Δ h1For 0.46mm, feed speed v1For 0.9mm/s, middling speed feeding
Stage amount of feeding Δ h2For 0.928mm, feed speed v2For 0.7mm/s, low speed feeds stage amount of feeding Δ h3For 0.158mm, into
Give speed v3For 0.2mm/s.
Compared with simplifying forming rectangular cross sectional shape roll forming process with conical bearing roller outer ring tradition, above-mentioned implementation
Example can save material about 19.1% using the present invention, save machining period about 2min.
The taper roll bearing outer ring cold roll forming technique of other materials and dimensions is identical as examples detailed above, implements effect
Fruit is also identical, no longer enumerates embodiment one by one herein.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (6)
1. a kind of taper roll bearing outer ring precision cold-rolled manufacturing process, outer ring ring is the interior cylinder for being equipped with ring bellmouth
Structure, which is characterized in that include the following steps：
S1, ring billet design：Ring billet bellmouth and ring billet cylindrical hole, ring billet cylindrical hole and ring billet bellmouth will be coaxially provided in ring billet
Miner diameter end connection, the diameter of ring billet cylindrical hole is less than the diameter of ring billet bellmouth miner diameter end, and the total height of ring billet is slightly less than outer
The total height of ring part is based on constancy of volume principle, according to each size of each size design ring billet of outer ring ring；
S2, cold roll forming：Cold rolling pass is made of the working face of driven roller and core roller, the shape of working surface of driven roller and outer ring
Part external surface shape is consistent, and the shape of working surface of core roller is consistent with outer ring ring inner surface configuration, and driven roller and core roller design
To be I-shaped, ring billet is put between driven roller and core roller, the flange of driven roller and core roller upper and lower ends is respectively to the two of ring billet
End face carries out axial constraint, and driven roller rotates, while core roller does radial feed movement, and cold roll forming is carried out to ring billet,
Obtain outer ring ring.
2. taper roll bearing outer ring precision cold-rolled manufacturing process according to claim 1, which is characterized in that step S1
In, ring billet size design specifically includes following steps：
S101, the ring bellmouth in the ring of outer ring is divided into fine taper hole and big bellmouth along short transverse, with B, B1、B2Point
Not Biao Shi outer ring ring total height, fine taper hole height, big bellmouth height, take B1=(0.3~0.5) B, with V, V1、V2Respectively
Indicate outer ring ring total volume, the corresponding part ring volume in fine taper hole and the corresponding part ring volume of big bellmouth, then
There is B=B1+B2, V=V1+V2；
S102, with D0、ds0、dm0、db0Ring billet outer diameter, ring billet cylindrical hole internal diameter, ring billet bellmouth miner diameter end internal diameter, ring are indicated respectively
Base bellmouth bigger diameter end internal diameter, with B0、B10、B20Indicate that ring billet total height, ring billet cylindrical hole height and ring billet bellmouth are high respectively
Degree indicates the length of bench that ring billet cylindrical hole is formed with ring billet bellmouth miner diameter end junction, with V with L0、V10、V20It indicates respectively
The corresponding part ring billet volume of ring billet total volume, ring billet cylindrical hole and the corresponding part ring billet volume of ring billet bellmouth；
Ring billet height designs：B0=B- Δ B, Δ B take 0.2~0.5mm, B10=B0B1/ B, B20=B0-B10；
Ring billet volume meets：V0=V10+V20=V, V10/V20=V1/V2；
Ring billet cylindrical hole internal diameter ds0=ds/ λ, dsFor the diameter of outer ring ring bellmouth miner diameter end, λ is rolling ratio, and λ values are
1.25~1.35；
Ring billet outer diameter
Length of bench
Ring billet bellmouth miner diameter end internal diameter dm0=ds0+2L；
Ring billet bellmouth bigger diameter end internal diameter
3. taper roll bearing outer ring precision cold-rolled manufacturing process according to claim 1, which is characterized in that step S2 packets
Driven roller design is included, the working size of driven roller includes：
Work radius surface Rd=500Vd/πnd,
Cavity height Bd=B,
Cavity lateral width
Draw taper αd=3 °~6 °,
Wherein, VdFor driven roller linear velocity, VdTake 1.1~1.6m/s, ndFor driven roller rotating speed, nd=n/ η, n turn for equipment motor
Speed, η are equipment speed reducer drive ratio, and B is the total height of outer ring ring, and D is outer ring ring outer diameter, dbFor outer ring ring bellmouth
The diameter of bigger diameter end.
4. taper roll bearing outer ring precision cold-rolled manufacturing process according to claim 3, which is characterized in that step S2 packets
The design of core roller is included, the working size of core roller includes：
Working face small end radius RisMeet
Working face big end radius Rib=Ris+BiTan θ,
Cavity height Bi=B+0.2,
Small end sidewall width
Big end sidewall width Sib=Sis+BiTan θ, θ are the gradient of ring bellmouth,
Core roller draw taper αi=3 °~6 °.
5. taper roll bearing outer ring precision cold-rolled manufacturing process according to claim 4, which is characterized in that consider equipment
The limit be closed centre-to-centre spacing limitation, driven roller works radius surface RdWith core roller working face small end radius RisIt is checked as the following formula：
Wherein, LmaxAnd LminThe greatest limit that respectively equipment allows is closed centre-to-centre spacing and least limit is closed centre-to-centre spacing.
6. taper roll bearing outer ring precision cold-rolled manufacturing process according to claim 1, which is characterized in that step S2 packets
Cold-rolled process design is included, cold-rolled process is fed using three stage stageds, is divided into high speed feed, middling speed feeding and low speed feeding,
Each stage amount of feeding and feed speed control as the following formula：
High speed feed amount Δ h1=0.3 Δ h, high speed feed speed ν1=(1.5~2) νmin；
Middling speed amount of feeding Δ h2=0.6 Δ h, middling speed feed speed ν2=(1~1.5) νmin；
Low speed amount of feeding Δ h3=0.1 Δ h, low speed feed speed ν3=(0.2~0.5) νmin；
Wherein, Δ h is rolling total feed amount,νminFor least limit feed speed,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293431.XA CN108568489A (en) | 2018-03-30 | 2018-03-30 | A kind of taper roll bearing outer ring precision cold-rolled manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293431.XA CN108568489A (en) | 2018-03-30 | 2018-03-30 | A kind of taper roll bearing outer ring precision cold-rolled manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108568489A true CN108568489A (en) | 2018-09-25 |
Family
ID=63574113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810293431.XA Pending CN108568489A (en) | 2018-03-30 | 2018-03-30 | A kind of taper roll bearing outer ring precision cold-rolled manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108568489A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111318630A (en) * | 2020-03-18 | 2020-06-23 | 武汉理工大学 | Near-net composite rolling forming method for inner ring of tapered roller bearing |
| CN111331063A (en) * | 2020-03-31 | 2020-06-26 | 武汉理工大学 | Low-consumption high-performance near-net cold rolling forming method for complex gear blank ring piece |
| CN113579128A (en) * | 2021-07-29 | 2021-11-02 | 武汉理工大学 | Rolling process method of large aluminum alloy Y-shaped cross-section ring piece |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008302403A (en) * | 2007-06-08 | 2008-12-18 | Nsk Ltd | Method for producing inner ring and outer ring of rolling bearing |
| CN102000752A (en) * | 2010-10-28 | 2011-04-06 | 武汉理工大学 | Bispherical ring rolling forming method |
| CN103316926A (en) * | 2013-06-07 | 2013-09-25 | 武汉理工大学 | Cold rolling forming method for automotive hub bearing ring part with L-shaped cross section |
| CN104259354A (en) * | 2014-09-24 | 2015-01-07 | 张家港海陆环形锻件有限公司 | Ball valve flange combined rolled ring forming method |
| CN105964841A (en) * | 2016-05-12 | 2016-09-28 | 武汉理工大学 | Combined feeding precise rolling forming method for chute section ring part |
| CN107545107A (en) * | 2017-08-25 | 2018-01-05 | 武汉理工大学 | A kind of ring billet and ring billet design method for trapezoid cross section bearing ring-rolling |
-
2018
- 2018-03-30 CN CN201810293431.XA patent/CN108568489A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008302403A (en) * | 2007-06-08 | 2008-12-18 | Nsk Ltd | Method for producing inner ring and outer ring of rolling bearing |
| CN102000752A (en) * | 2010-10-28 | 2011-04-06 | 武汉理工大学 | Bispherical ring rolling forming method |
| CN103316926A (en) * | 2013-06-07 | 2013-09-25 | 武汉理工大学 | Cold rolling forming method for automotive hub bearing ring part with L-shaped cross section |
| CN104259354A (en) * | 2014-09-24 | 2015-01-07 | 张家港海陆环形锻件有限公司 | Ball valve flange combined rolled ring forming method |
| CN105964841A (en) * | 2016-05-12 | 2016-09-28 | 武汉理工大学 | Combined feeding precise rolling forming method for chute section ring part |
| CN105964841B (en) * | 2016-05-12 | 2017-12-08 | 武汉理工大学 | A kind of skewed slot section ring parts combined feed precision rolling manufacturing process |
| CN107545107A (en) * | 2017-08-25 | 2018-01-05 | 武汉理工大学 | A kind of ring billet and ring billet design method for trapezoid cross section bearing ring-rolling |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111318630A (en) * | 2020-03-18 | 2020-06-23 | 武汉理工大学 | Near-net composite rolling forming method for inner ring of tapered roller bearing |
| CN111318630B (en) * | 2020-03-18 | 2021-07-20 | 武汉理工大学 | Near-net composite rolling forming method for inner ring of tapered roller bearing |
| CN111331063A (en) * | 2020-03-31 | 2020-06-26 | 武汉理工大学 | Low-consumption high-performance near-net cold rolling forming method for complex gear blank ring piece |
| CN111331063B (en) * | 2020-03-31 | 2021-05-28 | 武汉理工大学 | Low-consumption high-performance near-net cold rolling forming method for complex gear blank forging |
| CN113579128A (en) * | 2021-07-29 | 2021-11-02 | 武汉理工大学 | Rolling process method of large aluminum alloy Y-shaped cross-section ring piece |
| CN113579128B (en) * | 2021-07-29 | 2022-04-01 | 武汉理工大学 | Rolling process method of large aluminum alloy Y-shaped cross-section ring piece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108568489A (en) | A kind of taper roll bearing outer ring precision cold-rolled manufacturing process | |
| CN103316926B (en) | Cold rolling forming method for automotive hub bearing ring part with L-shaped cross section | |
| CN102615224B (en) | The method that inner step profile section ring parts radial-axial rolling is shaped | |
| CN103419100B (en) | A kind of bearing outer ring grinding process | |
| CN103934638B (en) | A kind of accurate external splines pipe manufacturing process | |
| CN201493394U (en) | Mould group for diameter reducing of seamless steel tube by hammering | |
| CN101579702B (en) | New technique for producing high alloy steel high-end pipe by adopting cross rolling elongation technology | |
| CN103521522B (en) | Cross wedge rolling precision forming method of axle shaft sleeve | |
| CN203936192U (en) | A kind of roll of rolled metal corrugated plating | |
| CN108672619A (en) | A kind of tapered roller bearing internal ring cold roll forming method | |
| CN203209466U (en) | Production equipment for combined forming process for rolling and drawing steel wire with rectangular section | |
| CN111318630B (en) | Near-net composite rolling forming method for inner ring of tapered roller bearing | |
| CN102172627B (en) | Composite insulator hardware helical groove skew rolling roll groove design method | |
| CN104400325A (en) | Technique for processing bearing ring by steel tube hot-rolling and precise cold-rolling | |
| CN203886955U (en) | Cold-drawing inner die and cold-drawing die of seamless steel pipe | |
| CN202428599U (en) | Equal-segmental-arc window cushion mold core | |
| CN205599838U (en) | Cold forging mould and system of steering spindle | |
| CN103978039A (en) | Improved rolling mill roller | |
| CN103659161A (en) | Forming process of conical roller bearing inner ring large flange groove | |
| CN101905254A (en) | Blanking method of sector plate blanks | |
| CN208866237U (en) | A kind of formed punch | |
| CN203316477U (en) | B-type sectional material rolling forming equipment | |
| CN208513570U (en) | A kind of axial feed cylindrical die roll | |
| CN213052560U (en) | Conical bearing ring forging die | |
| CN210424454U (en) | Composite screw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180925 |