CN110202060A - A kind of H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping and its shaping methods - Google Patents
A kind of H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping and its shaping methods Download PDFInfo
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- CN110202060A CN110202060A CN201910639870.6A CN201910639870A CN110202060A CN 110202060 A CN110202060 A CN 110202060A CN 201910639870 A CN201910639870 A CN 201910639870A CN 110202060 A CN110202060 A CN 110202060A
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- 238000007493 shaping process Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000010791 quenching Methods 0.000 claims abstract description 19
- 230000000171 quenching effect Effects 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 238000005496 tempering Methods 0.000 claims description 21
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 238000001291 vacuum drying Methods 0.000 claims description 6
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000005255 carburizing Methods 0.000 abstract description 14
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000007630 basic procedure Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/10—Making other particular articles parts of bearings; sleeves; valve seats or the like
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/04—Hardening by cooling below 0 degrees Celsius
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A kind of H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping and its shaping methods being related to bearing technical field of heat treatment, apparatus for shaping includes positioning base ring, upper die and lower die, it is fully mated with lower die using upper die, by bearing ring support to design size, shaping methods include preparation shaping, quenching, shaping, it is tempered five steps of cold treatment and detection, pass through the apparatus for shaping and combines bearing ring shaping method, warpage is deformed after solving the problems, such as the heat treatment of high-temperature carburizing bearing parts, improve the finishing precision of product and the stability of size, it ensure that the quality of product, also improve production efficiency and yield rate, reduce the waste of product material.
Description
Technical field
The present invention relates to bearing technical field of heat treatment, more particularly, to a kind of H10Cr4Mo4Ni4V thin-wall bearing ferrule shaping
Device and its shaping methods.
Background technique
Well known, the basic procedure of bearing ring manufacture is to obtain raw material, forging, annealing, turning, heat treatment, detection
And grinding, wherein heat treatment is the key that improve bearing ring inherent quality manufacturing procedure；G13Cr4Mo4Ni4V steel belongs to common
High-temperature carburizing bearing steel, after over carburizing is heat-treated, the surface hardness of part is high, and centre hardness is relatively low, and part is made to exist
While with high impact flexibility, it is provided with high rigidity, high temperature tolerance energy, high-dimensional stability and high contact fatigue life
Characteristic is now commonly used to aero-engine main shaft, and with the rapid development of aviation industry, bearing arrangement is more multiple than before
It is miscellaneous, and there are a large amount of thin-walled high-temperature carburizing bearing steel bearing rings；
Bearing ring inevitably generates heat treatment and becomes during heat treatment due to factors such as thermal stress, structural transformations
Shape, and through over carburizing primary quenching and secondary quenching, deformation rate reaches 100%, and deforms superscale up to 200%~300%, is somebody's turn to do
The problem on deformation of class bearing lasso seriously constrains the heat treatment and subsequent mill process of high-temperature carburizing steel bearing collar；
Traditional technology high temperature carburizing bearing steel bearing ring quenching after use artificial shaping, this to Personnel Skill Levels require compared with
Height, and not can guarantee product passing rate of processing, the passing rate of processing of artificial shaping is less than 60%, the processing of serious limit product, existing
Have also available without effective apparatus for shaping and its shaping methods in technology.
Summary of the invention
In order to overcome the shortcomings in the background art, the invention discloses a kind of H10Cr4Mo4Ni4V thin-wall bearing ferrule shaping dresses
It sets and its shaping methods, the problem on deformation after can effectively solve bearing ring heat treatment guarantees that product quality reaches criterion of acceptability.
For achieving the above object, the present invention adopts the following technical scheme:
A kind of H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping includes positioning base ring, upper die and outer diameter and bearing ring
The cylindrical lower die of internal diameter adaptation；The positioning base ring is sheathed on the bottom end of lower die, and the gap between lower die is small
In the thickness of bearing ring；The lower die is radially divided into multiple pushing modules, and sets between adjacent two pushings module
There is joint-cutting, the upper surface center of the lower die is equipped with up big and down small bellmouth；The upper die includes directly to be greater than bearing
The disk of lasso outer diameter, the lower surface center of the disk are equipped with pyramidal structure cooperate with bellmouth, the pyramidal structure with
When bellmouth cooperates, the distance between lower surface and positioning base ring upper surface of upper die disk are equal to several bearing ring height
Summation.
Further, the disk upper surface center of the upper die is equipped with threaded connection hole.
Further, the lower die outer wall is uniformly provided with multiple in axial oil guide groove.
Further, the lower die is divided into three pushing modules.
Further, the cone angle of the lower die bellmouth is 20~40 degree.
Further, described adjacent two ratios for pushing width of slit and pushing mode diameter between module are 1: 40~70.
Further, the lower surface of the positioning base ring is concordant with the lower surface of lower die, and the height of the lower die is fixed
The height of position base ring and the summation of two bearing ring height.
A kind of H10Cr4Mo4Ni4V thin-wall bearing ferrule shaping methods include preparation shaping, quenching, shaping, tempering cold treatment
With five steps of detection: S1, preparation shaping: the step needs prepared H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping, will determine
Position base ring is fixed in the plane, lower die is correspondingly placed into the inner ring of positioning base ring, and by multiple pushing modules of lower die
It is stand-by that elimination joint-cutting gap is collapsed to center；S2, quenching: by bearing ring in vacuum drying oven respectively at 600 DEG C~700 DEG C, 800
DEG C~900 DEG C of each heat preservation 30min, 1060 DEG C~1070 DEG C of technological temperature are again heated to after heat preservation, oil is cold after keeping the temperature 45~55min
Or gas quenching is come out of the stove, tapping temperature is 100~140 DEG C；S3, shaping: after quenching, bearing ring is covered from the top of lower die
Enter, pushed upper die using press, and be fitted close with lower die, is moved by the way that multiple pushing modules of lower die are synchronous outward
Dynamic interior support force and upper die disk to bearing ring and positioning base ring are to the end force of bearing ring, to bearing ring
Carry out shaping；S4, tempering cold treatment: the bearing ring after shaping is taken out from apparatus for shaping, successively carries out returning for the first time
Fire, first time cold treatment, second of tempering, second of cold treatment and third time are tempered；The temperature of each cold treatment process is -80
DEG C~-70 DEG C, the time is 2~2.5h；The temperature of each tempering process is 500 DEG C~550 DEG C, and the time is 2~2.5h；S5, inspection
It surveys: connecing previous step, according to the Set criteria and warpage standard of different size bearing ring, bearing ring is detected, detect
Standard is deformation≤0.30mm, and qualified product is transferred subsequent processing after having detected by warpage≤0.35mm.
Further, in the S2 quenching Step, by bearing ring respectively at 650 DEG C, 850 DEG C of each heat preservations in vacuum drying oven
30min。
Further, in the S4 tempering cold treatment step, the temperature of each cold treatment process is -75 DEG C, each Temperer
The temperature of skill is 540 DEG C.
Due to the adoption of the technical scheme as described above, the invention has the following beneficial effects:
Apparatus for shaping disclosed by the invention, when upper die pushes and lower die is fully mated, multiple pushing modules of lower die
It is synchronized to push out to a certain extent, so that the inner wall of the outer wall and bearing ring that push module contradicts, and is supportted and set
The internal diameter of meter, meanwhile, the distance between lower surface and positioning base ring upper surface of upper die disk, if just by dry bearing
Lasso is pressed onto the height dimension of design；It is whole by preparation in conjunction with shaping methods disclosed by the invention using the apparatus for shaping
Five shape, quenching, shaping, tempering cold treatment and detection steps, especially for shaping stress is overcome, to the bearing holder (housing, cover) after shaping
Circle has carried out multiple tempering, deforms warpage after solving the problems, such as the heat treatment of high-temperature carburizing bearing parts, improves product
Finishing precision and size stability, ensure that the quality of product, also improve production efficiency and yield rate, reduce production
The waste of product material.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the apparatus for shaping；
Fig. 2 is lower die schematic top plan view in Fig. 1.
In figure: 1, upper die；2, lower die；3, bearing ring；4, base ring is positioned.
Specific embodiment
By the following examples can the detailed explanation present invention, the purpose of open invention is intended to protect the scope of the invention
All interior technological improvements, the invention is not limited to the following examples；In the description of the present invention, it is to be understood that,
It is only attached with the application if there is the orientation or positional relationship of the instructions such as term " on ", "lower", "front", "rear", "left", "right"
Figure corresponds to, of the invention for ease of description, rather than the device or element of indication or suggestion meaning must have a particular orientation:
In conjunction with the H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping of attached drawing 1-2, include positioning base ring 4, upper die 1 and outer diameter
The cylindrical lower die 2 being adapted to 3 internal diameter of bearing ring, it is preferred that 2 outer wall of lower die is uniformly provided with multiple in axial Oil Guide
Slot, convenient for lubrication；
Positioning base ring 4 is sheathed on the bottom end of lower die 2, and the gap between lower die 2 is less than the thickness of bearing ring 3, protects
Card lower die 2 can be given to the contact of the enough end faces of bearing ring 3, be beneficial to prevent 3 warpage of bearing ring；As needed, fixed
Position base ring 4 internal diameter it is 0.8~1.2mm bigger than the outer diameter of lower die 2, the internal diameter after 3 shaping of bearing ring be by upper die 1 and under
When pressing mold 2 is fully mated, under the internal diameter for strutting what degree determined, therefore positioning base ring 4 of lower die 2 needs to be slightly larger than at this time
Pressing mold 2, plays the role of positioning and correction；
Lower die 2 is radially divided into multiple pushing modules, and adjacent two push equipped with joint-cutting between module, due to lower die
2 outer diameter is generally higher than the bearing ferrule interior diameter before shaping, and the effect of joint-cutting is to collapse multiple pushing modules to center, just
In bearing set lasso；In addition, lower die 2 is divided into three pushing modules, guaranteeing that pushing module mobile support reaches shaping
While effect, joint-cutting quantity is reduced, improves plastic precision, it is preferred that the width of slit between adjacent two pushings module is under
The ratio of 2 diameter of pressing mold is 1: 40~70, and while guaranteeing convenient for bearing set lasso, width of slit is unsuitable wide, is influenced
Dimensional accuracy after shaping；The upper surface center of lower die 2 is equipped with up big and down small bellmouth, which is convenient for upper die 1
When pushing, push module can synchronize and it is smooth be displaced outwardly, in addition, the bellmouth can be set as slot or taper is logical
Hole, conical through-hole are more convenient for processing, convenient for controlling the cooperation precision of upper die 1 and lower die 2；As needed, 2 taper of lower die
The cone angle in hole be 20~40 degree, bearing ring shaping deform progressive degree in addition to related with the pushing speed of upper die 1, also with
The angle of taper of 2 bellmouth of lower die is related, and adjusting suitable angle of taper will affect the effect of shaping；
Upper die 1 includes the disk for being directly greater than 3 outer diameter of bearing ring, and the lower surface center of disk with bellmouth equipped with cooperating
Pyramidal structure, the pyramidal structure enable to multiple pushing modules of lower die, are synchronized to push out to a certain extent, so that
The inner wall of the outer wall and bearing ring that push module contradicts, and is supportted the internal diameter of design；Upper die 1 cooperates manual pressure
Bed or hydraulic press use, and the disk upper surface center of upper die 1 is equipped with threaded connection hole, convenient for connecting positioning with press,
Preferably, upper die 1 during pushing always with positioning 4 coaxial line of base ring；When pyramidal structure and bellmouth cooperate, upper pressure
The distance between lower surface and positioning 4 upper surface of base ring of 1 disk of mould are equal to the summation of several 3 height of bearing ring, guarantee pair
The phenomenon that shaping of bearing ring diameter and height settles at one go, can also prevent deformation warpage in this way；In addition, work as,
When the lower surface of positioning base ring 4 is concordant with the lower surface of lower die 2 namely the height of lower die 2 can be defined as positioning base ring 4
Height and several 3 height of bearing ring summation, the quantity of bearing ring 3 can be set as one, two or three.
Specific shaping methods embodiment one:
Thin-wall bearing ferrule, material: G13Cr4Mo4Ni4V, Φ 215.9mm before outer diameter Φ 215mm(carburizing), internal diameter Φ 206mm
(internal diameter Φ 205.2mm before carburizing), before height 24mm(carburizing highly 25.4), wall thickness 4.5mm；It is required that: deformation≤0.25mm is stuck up
Song≤0.35mm；
S1, preparation shaping: the step needs prepared H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping, and positioning base ring 4 is fixed
In the plane, lower die 2 is correspondingly placed into the inner ring of positioning base ring 4, and multiple pushing modules of lower die 2 are collapsed to center
It is stand-by to eliminate joint-cutting gap；
The apparatus for shaping size that corresponding two bearing rings of a shaping and total height are 50.8mm is as follows:
Upper die 1: being used cooperatively with lower die 2, and 15 ° of pyramidal structure cone angle；
Lower die 2: height 64.8mm, outer diameter Φ 205.2mm, cooperate with upper die by 15 ° of bellmouth cone angle；
Position base ring 4: height 14mm, internal diameter 206.2mm；
S2, quenching: bearing ring is again heated to process warm after heat preservation in 650 DEG C, 850 DEG C of each heat preservation 30min in vacuum drying oven
1070 DEG C of degree, oil is cold after keeping the temperature 45min, and about 120 DEG C of tapping temperature；
S3, shaping: after quenching, bearing ring is inserted in from the top of lower die 2, is pushed upper die 1 using press, and under
Pressing mold 2 is fitted close, the interior support force by multiple outside synchronizing movings of pushing module of lower die 2 to bearing ring, Yi Jishang
1 disk of pressing mold and positioning base ring 4 carry out shaping to bearing ring to the end force of bearing ring；
S4, tempering cold treatment: the bearing ring after shaping is taken out from apparatus for shaping, successively carries out first time tempering, the
Cold treatment, second of tempering, second of cold treatment and third time are tempered；The temperature of each cold treatment process is -75 DEG C, when
Between be 2.5h；The temperature of each tempering process is 540 DEG C, time 2.5h；
S5, detection: connecing previous step, detects to bearing ring, deformation of products within 0.20mm, warpage 0.25mm with
Interior, qualification rate can reach 100%, and qualified product is transferred subsequent processing.
Specific shaping methods embodiment two:
Thin-wall bearing ferrule, material: G13Cr4Mo4Ni4V, Φ 251.2mm before outer diameter Φ 250mm(carburizing), internal diameter Φ
Internal diameter Φ 239.2mm before 240.1mm(carburizing), before height 24mm(carburizing highly 25.2), wall thickness 5.0mm；It is required that: deformation≤
0.30mm, warpage≤0.35mm；
S1, preparation shaping: the step needs prepared H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping, and positioning base ring 4 is fixed
In the plane, lower die 2 is correspondingly placed into the inner ring of positioning base ring 4, and multiple pushing modules of lower die 2 are collapsed to center
It is stand-by to eliminate joint-cutting gap；
The apparatus for shaping size that corresponding two bearing rings of a shaping and total height are 50.4mm is as follows:
Upper die 1: being used cooperatively with lower die 2, and 15 ° of pyramidal structure cone angle；
Lower die 2: height 64.4mm, outer diameter Φ 239.2mm, cooperate with upper die by 15 ° of bellmouth cone angle；
Position base ring 4: height 14mm, internal diameter 240.2mm；
S2, quenching: bearing ring is again heated to process warm after heat preservation in 650 DEG C, 850 DEG C of each heat preservation 30min in vacuum drying oven
1070 DEG C of degree, oil is cold after keeping the temperature 45min, and about 125 DEG C of tapping temperature；
S3, shaping: after quenching, bearing ring is inserted in from the top of lower die 2, is pushed upper die 1 using press, and under
Pressing mold 2 is fitted close, the interior support force by multiple outside synchronizing movings of pushing module of lower die 2 to bearing ring, Yi Jishang
1 disk of pressing mold and positioning base ring 4 carry out shaping to bearing ring to the end force of bearing ring；
S4, tempering cold treatment: the bearing ring after shaping is taken out from apparatus for shaping, successively carries out first time tempering, the
Cold treatment, second of tempering, second of cold treatment and third time are tempered；The temperature of each cold treatment process is -75 DEG C, when
Between be 2.5h；The temperature of each tempering process is 540 DEG C, time 2.5h；
S5, detection: connecing previous step, detects to bearing ring, deformation of products within 0.20mm, warpage 0.28mm with
Interior, qualification rate can reach 100%, and qualified product is transferred subsequent processing.
Part not in the detailed description of the invention is the prior art.
Claims (10)
1. a kind of H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping, it is characterised in that: include positioning base ring (4), upper die (1)
And the cylindrical lower die (2) that outer diameter is adapted to bearing ring (3) internal diameter；The positioning base ring (4) is sheathed on lower die (2)
Bottom end, and the gap between lower die (2) be less than bearing ring (3) thickness；The lower die (2) radially equal part
For multiple pushing modules, and adjacent two push and are equipped with joint-cutting between module, and the upper surface center of the lower die (2) is equipped with upper big
Under small bellmouth；The upper die (1) includes the disk for being directly greater than bearing ring (3) outer diameter, the lower surface of the disk
Center is equipped with the pyramidal structure cooperated with bellmouth, when the pyramidal structure and bellmouth cooperate, the following table of upper die (1) disk
The distance between face and positioning base ring (4) upper surface are equal to the summation of several bearing rings (3) height.
2. H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping according to claim 1, it is characterized in that: the upper die
(1) disk upper surface center is equipped with threaded connection hole.
3. H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping according to claim 1, it is characterized in that: the lower die
(2) outer wall is uniformly provided with multiple in axial oil guide groove.
4. H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping according to claim 1, it is characterized in that: the lower die
(2) three pushing modules are divided into.
5. H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping according to claim 1, it is characterized in that: the lower die
(2) cone angle of bellmouth is 20~40 degree.
6. H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping according to claim 1, it is characterized in that: adjacent two lower die
The ratio of width of slit and lower die (2) diameter between block is 1: 40~70.
7. H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping according to claim 1, it is characterized in that: the positioning base ring
(4) lower surface is concordant with the lower surface of lower die (2), and the height of the lower die (2) is to position the height and two of base ring (4)
The summation of a bearing ring (3) height.
8. a kind of H10Cr4Mo4Ni4V using any H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping in claim 1~7 is thin
Wall bearing ring shaping methods, it is characterised in that: include five preparation shaping, quenching, shaping, tempering cold treatment and detection steps
It is rapid:
S1, preparation shaping: the step needs prepared H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping, and positioning base ring (4) is solid
It is fixed to be correspondingly placed into lower die (2) in the inner ring of positioning base ring (4) in the plane, and by multiple pushing modules of lower die (2)
It is stand-by that elimination joint-cutting gap is collapsed to center；
S2, quenching: bearing ring is protected in vacuum drying oven respectively at 600 DEG C~700 DEG C, 800 DEG C~900 DEG C each heat preservation 30min
1060 DEG C~1070 DEG C of technological temperature are again heated to after temperature, oily cold or gas quenching is come out of the stove after keeping the temperature 45~55min, tapping temperature
It is 100~140 DEG C；
S3, shaping: after quenching, bearing ring being inserted in from the top of lower die (2), is pushed upper die (1) using press, and
It is fitted close with lower die (2), by multiple outside synchronizing movings of pushing module of lower die (2) to the inner support of bearing ring
Power and upper die (1) disk and positioning base ring (4) carry out shaping to bearing ring to the end force of bearing ring；
S4, tempering cold treatment: the bearing ring after shaping is taken out from apparatus for shaping, successively carries out first time tempering, the
Cold treatment, second of tempering, second of cold treatment and third time are tempered；The temperature of each cold treatment process is -80 DEG C~-
70 DEG C, the time is 2~2.5h；The temperature of each tempering process is 500 DEG C~550 DEG C, and the time is 2~2.5h；
S5, detection: connecing previous step, according to the Set criteria and warpage standard of different size bearing ring, carries out to bearing ring
Detection, examination criteria are deformation≤0.30mm, and qualified product is transferred subsequent processing after having detected by warpage≤0.35mm.
9. H10Cr4Mo4Ni4V thin-wall bearing ferrule shaping methods according to claim 8, it is characterized in that: S2 quenching step
In rapid, by bearing ring respectively at 650 DEG C, 850 DEG C of each heat preservation 30min in vacuum drying oven.
10. H10Cr4Mo4Ni4V thin-wall bearing ferrule shaping methods according to claim 8, it is characterized in that: the S4 is tempered
In cold treatment step, the temperature of each cold treatment process is -75 DEG C, and the temperature of each tempering process is 540 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910639870.6A CN110202060A (en) | 2019-07-16 | 2019-07-16 | A kind of H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping and its shaping methods |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910639870.6A CN110202060A (en) | 2019-07-16 | 2019-07-16 | A kind of H10Cr4Mo4Ni4V thin-wall bearing ferrule apparatus for shaping and its shaping methods |
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| CN110202060A true CN110202060A (en) | 2019-09-06 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2700335Y (en) * | 2004-04-30 | 2005-05-18 | 洛阳轴承集团有限公司 | Assembling movable die for bearing ring heat treatment |
| CN204824995U (en) * | 2015-08-18 | 2015-12-02 | 上海人本集团有限公司 | Bearing ring heat treatment device |
| CN206143271U (en) * | 2016-09-22 | 2017-05-03 | 大连冶金轴承股份有限公司 | That takes tang location oozes carbon steel material self -aligning roller bearing outer lane quenching mould |
| CN108251608A (en) * | 2018-02-28 | 2018-07-06 | 洛阳Lyc轴承有限公司 | A kind of high-temperature bearing steel bearings lasso shaping processing method |
| CN208594336U (en) * | 2018-07-16 | 2019-03-12 | 鞍山新兴轴承制造有限公司 | A kind of built-up shaft bearing ring carburizing and quenching mould |
| CN109706307A (en) * | 2019-03-19 | 2019-05-03 | 洛阳Lyc轴承有限公司 | Large scale carburizing steel double-row self-aligning roller bearing outer ring quenching mould |
| CN210648070U (en) * | 2019-07-16 | 2020-06-02 | 洛阳Lyc轴承有限公司 | High-temperature carburizing steel thin-wall bearing ring shaping device |
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2019
- 2019-07-16 CN CN201910639870.6A patent/CN110202060A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2700335Y (en) * | 2004-04-30 | 2005-05-18 | 洛阳轴承集团有限公司 | Assembling movable die for bearing ring heat treatment |
| CN204824995U (en) * | 2015-08-18 | 2015-12-02 | 上海人本集团有限公司 | Bearing ring heat treatment device |
| CN206143271U (en) * | 2016-09-22 | 2017-05-03 | 大连冶金轴承股份有限公司 | That takes tang location oozes carbon steel material self -aligning roller bearing outer lane quenching mould |
| CN108251608A (en) * | 2018-02-28 | 2018-07-06 | 洛阳Lyc轴承有限公司 | A kind of high-temperature bearing steel bearings lasso shaping processing method |
| CN208594336U (en) * | 2018-07-16 | 2019-03-12 | 鞍山新兴轴承制造有限公司 | A kind of built-up shaft bearing ring carburizing and quenching mould |
| CN109706307A (en) * | 2019-03-19 | 2019-05-03 | 洛阳Lyc轴承有限公司 | Large scale carburizing steel double-row self-aligning roller bearing outer ring quenching mould |
| CN210648070U (en) * | 2019-07-16 | 2020-06-02 | 洛阳Lyc轴承有限公司 | High-temperature carburizing steel thin-wall bearing ring shaping device |
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