CN101446316A - Method of manufacturing of ball bearing's rings by rolling-out of the blanks from bearing's steel using a roll-out machine - Google Patents
Method of manufacturing of ball bearing's rings by rolling-out of the blanks from bearing's steel using a roll-out machine Download PDFInfo
- Publication number
- CN101446316A CN101446316A CNA2008101774165A CN200810177416A CN101446316A CN 101446316 A CN101446316 A CN 101446316A CN A2008101774165 A CNA2008101774165 A CN A2008101774165A CN 200810177416 A CN200810177416 A CN 200810177416A CN 101446316 A CN101446316 A CN 101446316A
- Authority
- CN
- China
- Prior art keywords
- blank
- roll extrusion
- temperature
- bearing
- roll
- 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
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
- B21H1/12—Making articles shaped as bodies of revolution rings of restricted axial length rings for ball or roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/64—Special methods of manufacture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49636—Process for making bearing or component thereof
- Y10T29/49643—Rotary bearing
- Y10T29/49679—Anti-friction bearing or component thereof
- Y10T29/49691—Cage making
Abstract
Method of manufacturing of ball bearing's rings by rolling-out of the blanks from bearing's steel using a roll-out machine, where the blank is heated at the temperature between 600 DEG C and 800 DEG C, advangeously between 700 DEG C and 720 DEG C before being rolled-out.
Description
Technical field
The present invention relates to use roller roll extrusion bearing steel wool base to make the method for ball bearing circle.
Background technique
The ball bearing circle is normally made by cold rolling or the hot roll extrusion under forging temperature.
The original material of hot roll extrusion is by the blank of hammering or die forging.The forge plant of making the ball bearing circle is equipped with polytype roller of different suppliers usually.The roll extrusion of blank is to carry out in the forging temperature that surpasses 850 ℃, for Bearing Steel typically between 1050 ℃-850 ℃.
The shortcoming of this technology is that necessary balance is not only because big material tolerance and tolerance owing to manufacturing inexactness, contraction, decarburization and the surface imperfection of forging generation are gone back in roll extrusion.Owing to being set in 1100 ℃, smelting furnace has higher energy consumption, cause the thermal pressure of instrument and machine owing to high temperature, the low precision of shape and size, the low utilization rate of material, and the unsuitable directivity of the material fiber of upsetting by follow-up processing under many circumstances.
Temperature is relative newer technology at the cold rolling below 400 ℃, and wherein, material is distinguished roll forming at ambient temperature or slightly high temperature compacted under.By using special-purpose roller to carry out roll extrusion.Blank is the circle of the suitable shape that goes out of lathe car.
Cold rolling makes low material tolerance, and high dimensional accuracy and more effective material utilization rate become possibility.The shape of roll extrusion is accurate, and roughly meets the shape of finishing the circle after the processing, and therefore, the direction of fiber is very beneficial to the strain subsequently of race ring.By the cold rolling process intensification material.
But disadvantage is a material must have the homogeneous structure that is suitable for cold rolling.Material must carry out soft annealing in certain inhibition under annealing temperature.Because the needs of higher deformation force and deformation work, cold rolling also comprises the bigger strain on the machine.This means to have higher requirement to the instrument quality, to bear higher stress.Uneven deformation strain is arranged in the material, cause race ring after tempering, to produce size distortion and ovality.
The objective of the invention is to eliminate above-mentioned shortcoming, reach the reduction deformation work, reduce the consumption of the energy, the better utilization material, the weight of minimizing blank, the life-span of prolongation instrument, reduce the tolerance and the tolerance of material, and purpose that finally can the larger sized race ring of roll extrusion.
Summary of the invention
Above-mentioned shortcoming can be eliminated to a great extent by the method for passing through to use roller roll extrusion bearing steel wool base to make the ball bearing circle that proposes according to the present invention, and its blank is the heating of the temperature between 600 ℃ to 800 ℃ before by roll extrusion.
In a preferred embodiment, blank heating of the temperature between 700 ℃ to 720 ℃ before by roll extrusion.
In a further advantageous embodiment, be that hammering is crossed or the blank of die forging by the blank of roll extrusion, or the blank of lathe cutting, or the circle that is divided into by thick-wall tube.
The advantage of this solution is: compare with the forging roll extrusion and reduced energy consumption, compare with cold rolling and to have reduced deformation work, compare with hot roll extrusion and improved stock utilization, reduced blank weight, compare and prolonged tool life with forging roll extrusion, reduced material tolerance and tolerance.Distortion of forging ratio and decarburization reach minimum, and they are very little to the influence of turning tolerance.Compare this solution with cold rolling and also allow to make larger sized circle.
Embodiment
The present invention relates to by using " false add heat " roll extrusion blank to make the technology of ball bearing circle.The technology that is proposed has effectively been utilized the advantage of above-mentioned two kinds of technologies in the prior art, eliminates its shortcoming simultaneously.
Its principle is to carry out the temperature of roll extrusion between 600 ℃ to 800 ℃.Favourable temperature range is 700 ℃ to 720 ℃.When the initial blank material that uses is thick-wall tube or die forging blank.These blanks are lathed to necessary shape and volume.Circle after the turning is placed in the indcution heater then, is heated to the temperature that needs in indcution heater, for example 720 ℃.By the temperature of thermometer monitoring heater, have only when blank reaches suitable temperature it is taken out from heater, put into roller.
Transmission between heater and roller is undertaken by robot.The roll extrusion process is stored in the storage of computer by sequencing and by computer control.This has guaranteed the repeatability of profile and has accurately duplicated.After the roll extrusion, take out circle from machine, be placed on the transmission mechanism of cooling back, described transmission mechanism can make temperature unanimity and control be cooled to about 300 ℃ temperature.
The advantage of this solution is: compare with the forging roll extrusion and reduced energy consumption, compare with cold rolling and to have reduced deformation work, compare with hot roll extrusion and improved stock utilization, reduced blank weight, compare and prolonged tool life with forging roll extrusion, reduced material tolerance and tolerance.Distortion of forging ratio and decarburization reach minimum, and they are very little to the influence of turning tolerance.Compare this solution with cold rolling and also allow to make larger sized circle.
The new process of passing through " false add heat " condition roll extrusion blank that is proposed has been utilized the advantage of two kinds of already known processes in the prior art, eliminates its shortcoming simultaneously.The optimum temperature that realizes the method that proposes among the present invention between 700 ℃ to 720 ℃, this moment the distortion of materials resistance to compare with cooling material be half of its deformation resistance value, therefore improved material plasticity.
Claims (5)
1. one kind by using roller roll extrusion bearing steel wool base to make the method for ball bearing circle, it is characterized in that blank is the heating of the temperature between 600 ℃ to 800 ℃ before by roll extrusion.
2. the method for claim 1 is characterized in that, blank is the heating of the temperature between 700 ℃ to 720 ℃ before by roll extrusion.
3. method as claimed in claim 1 or 2 is characterized in that, is that hammering is crossed or the blank of die forging by the blank of roll extrusion.
4. method as claimed in claim 1 or 2 is characterized in that, by the blank of roll extrusion by the blank of lathe cutting.
5. method as claimed in claim 1 or 2 is characterized in that, is the circle that is divided into by thick-wall tube by the blank of roll extrusion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZ20070845A CZ2007845A3 (en) | 2007-11-30 | 2007-11-30 | Process for producing bearing rings by flaring intermediate products from bearing steel with pipe-expanding machine |
| CZ2007845 | 2007-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101446316A true CN101446316A (en) | 2009-06-03 |
Family
ID=40592036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101774165A Pending CN101446316A (en) | 2007-11-30 | 2008-11-27 | Method of manufacturing of ball bearing's rings by rolling-out of the blanks from bearing's steel using a roll-out machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20090139092A1 (en) |
| CN (1) | CN101446316A (en) |
| BR (1) | BRPI0822310A2 (en) |
| CZ (1) | CZ2007845A3 (en) |
| WO (1) | WO2009067961A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906599A (en) * | 2011-11-02 | 2014-07-02 | 毛瑟－韦尔克奥伯恩多夫机械制造有限公司 | Method and device for inserting bearing bush |
| CN109681532A (en) * | 2019-01-07 | 2019-04-26 | 广州大学 | A kind of combined machining method of roller bearing inner ring |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414425A (en) * | 2017-08-03 | 2017-12-01 | 常州市双强机械制造有限公司 | Wind-powered electricity generation gear ring bearing seamless ring technique |
| DE102020202406B3 (en) * | 2020-02-25 | 2021-05-12 | Sms Group Gmbh | Ring rolling mill with device for ring manipulation |
| CN114054665A (en) * | 2021-11-22 | 2022-02-18 | 中国航发哈尔滨轴承有限公司 | BG801 steel ball forging method |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1452535A (en) * | 1919-06-23 | 1923-04-24 | Chicago Mfg And Distributing C | Manufacture of bearing rings |
| US1854897A (en) * | 1929-12-26 | 1932-04-19 | Joseph A Ganster | Method of making bearing rings |
| US2376779A (en) * | 1942-09-30 | 1945-05-22 | Elizabeth B Dickson | Process for making antifriction bearings |
| FR1069592A (en) * | 1952-01-18 | 1954-07-09 | Kugelfischer G Schaefer & Co | Process for manufacturing raceway rings for rolling mill bearings |
| US2893114A (en) * | 1953-12-04 | 1959-07-07 | Roy A Halversen | Hot working of metals |
| US3046653A (en) * | 1958-05-14 | 1962-07-31 | Zd Y Presneho Strojirenstvi Li | Forging of rings and similar parts |
| GB1172093A (en) * | 1965-10-23 | 1969-11-26 | Federal Mogul Corp | Improvements in Forging Parts from Workpieces |
| US4393563A (en) * | 1981-05-26 | 1983-07-19 | Smith David T | Cold forced sintered powder metal annular bearing ring blanks |
| JP3285927B2 (en) * | 1992-05-25 | 2002-05-27 | エヌティエヌ株式会社 | Manufacturing method of split bearing ring |
| JP3366534B2 (en) * | 1996-09-19 | 2003-01-14 | 山陽特殊製鋼株式会社 | Warm or hot front-rear simultaneous extrusion high-speed die forging method and apparatus |
| DE10219441C1 (en) * | 2002-04-25 | 2003-09-18 | Univ Dresden Tech | Machine tool for the production of inner/outer roller bearing and gear rings ready for grinding, from tubular or solid workpieces, uses a combination of lathe turning and profile roller shaping in series and/or in parallel |
| SE525426C2 (en) * | 2002-05-02 | 2005-02-15 | Skf Ab | Method of making rings and apparatus for carrying out the method. |
-
2007
- 2007-11-30 CZ CZ20070845A patent/CZ2007845A3/en unknown
-
2008
- 2008-11-26 US US12/323,745 patent/US20090139092A1/en not_active Abandoned
- 2008-11-26 WO PCT/CZ2008/000141 patent/WO2009067961A1/en active Application Filing
- 2008-11-27 CN CNA2008101774165A patent/CN101446316A/en active Pending
- 2008-12-01 BR BRPI0822310-6A patent/BRPI0822310A2/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906599A (en) * | 2011-11-02 | 2014-07-02 | 毛瑟－韦尔克奥伯恩多夫机械制造有限公司 | Method and device for inserting bearing bush |
| CN109681532A (en) * | 2019-01-07 | 2019-04-26 | 广州大学 | A kind of combined machining method of roller bearing inner ring |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009067961A1 (en) | 2009-06-04 |
| US20090139092A1 (en) | 2009-06-04 |
| CZ2007845A3 (en) | 2009-06-10 |
| BRPI0822310A2 (en) | 2013-12-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090603 |