CN102211135A - Co-production process for inner ring and outer ring of medium large Inch taper roller bearings - Google Patents
Co-production process for inner ring and outer ring of medium large Inch taper roller bearings Download PDFInfo
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- CN102211135A CN102211135A CN2011100531219A CN201110053121A CN102211135A CN 102211135 A CN102211135 A CN 102211135A CN 2011100531219 A CN2011100531219 A CN 2011100531219A CN 201110053121 A CN201110053121 A CN 201110053121A CN 102211135 A CN102211135 A CN 102211135A
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Abstract
The invention relates to a co-production process for the inner ring and the outer ring of medium large Inch taper roller bearings, belonging to the technical field of Inch taper roller bearing ring forging. In the invention, the problem that the traditional medium large Inch taper roller bearing ring forging process can not realize co-production of the inner ring and the outer ring is solved. The process is mainly characterized by comprising the following steps of: (1) heating a GCr15 steel section on an intermediate frequency induction furnace, then upsetting and separating on a press machine on which the steel section is separated into two parts, namely an outer ring blank and an inner ring blank; (2) pressing the outer ring blank to be slope, flat and high on the press machine, rolling and expanding on a chambering machine, reeling on the press machine, and cooling, thus an outer ring forge of one set of medium large Inch taper roller bearings is obtained; and (3) upsetting, extruding and punching the inner ring blank on the press machine, rolling and expanding on the chambering machine, reeling on the press machine, and cooling, thus an inner ring forge of one set of the medium large Inch taper roller bearings is obtained. The process provided by the invention has the characteristics that the material utilization rate is high and the production efficiency is higher and is mainly applied to co-production of the inner ring forge and the outer ring forge of the medium large Inch taper roller bearings.
Description
Technical field
The invention belongs to conical roller bearing ring technical field of forging made in Great Britain.Being specifically related to a kind of radial ball bearing blank that adopts divides cover technology and the flat high blank-making technology of a kind of novel pressure slope manufacture method that combine, that suitable medium-and-large-sized taper roll bearing inner and outer ring forges simultaneously.
Background technology
Medium-and-large-sized taper roll bearing product made in Great Britain is one of main Types of the foreign trade bearing exported product developed in recent years, in the recent period along with foreign trade is supplied in enormous quantities, its forge balanced production, energy-saving material-saving extremely each side pay close attention to.Be subjected to the restriction of product structure, process unit and technical merit, except the middle-size and small-size radial ball bearing product of part forging, middle-size and small-size taper roller product forging made in Great Britain have been implemented inside and outside with the cover explained hereafter, medium-and-large-sized taper roll bearing forging made in Great Britain generally adopts now intrinsic abnormal shape cover forging process mode to produce, and namely forges other small sized product part with the part of other medium-and-large-sized taper roll bearing product as the parent cover.Because the branch of medium-and-large-sized taper roll bearing product inner ring forging cover preponderance, utilize existing intrinsic abnormal shape cover to forge and inside and outside with Analysis of Nested Design principle and technology and pattern assembly, it almost is impossible finishing that this forging Internal and external cycle produces simultaneously.Again because not the matching of different bearing product yields, bring inconvenience to balanced production, therefore, existing intrinsic cover is forged processing technology can not forge production simultaneously to medium-and-large-sized conical bearing inner and outer ring made in Great Britain, must forge processing technology to existing intrinsic cover and study improvement, explore new technology, new method that medium-and-large-sized taper roll bearing inner and outer ring forges production synchronously, realize the synchronous batch process that medium-and-large-sized taper roll bearing inner and outer ring forges.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of radial ball bearing blank to divide cover technology and the flat high blank-making technology of a kind of novel pressure slope to combine at above-mentioned weak point, the manufacture method that stock utilization height, higher, the suitable medium-and-large-sized inner and outer rings of conical bearings made in Great Britain of production efficiency are produced in batches simultaneously.
Solution of the present invention is: a kind of medium-and-large-sized conical roller bearing ring made in Great Britain is inside and outside with cover technology, it is characterized in that:
⑴, weight is heated to 1050 ℃ at 1.000～4.500 kilograms, diameter in the GCr15 of φ 50～φ 75 steel material section on intermediate frequency furnace, this heating material section jumping-up, branch cover on forcing press, be separated into bearing outside blank and bearing inner sleeve blank two parts then;
, external sleeve blank be placed on the upper pressure slope of forcing press Ping Gaotai flat high after on staving press rolling, whole footpath on forcing press becomes same set of medium-and-large-sized taper roll bearing overcoat forging made in Great Britain after the cooling again;
⑶, interior cover blank is placed on to roll on staving press after jumping-up on the forcing press, extruding, the perforation expands, whole footpath on forcing press becomes cover forging in the same set of taper roll bearing made in Great Britain after the cooling again.
GCr15 steel material section described in the technical solution of the present invention is heated to 1050 ℃ on the KGPS-800 intermediate frequency furnace.
Heating material section described in the technical solution of the present invention is jumping-up, branch cover on the J31-400 forcing press.
External sleeve blank described in the technical solution of the present invention pressure slope on J31-400 forcing press Ping Gaotai is flat high.
External sleeve blank described in the technical solution of the present invention behind the flat height of pressure slope on the forcing press Ping Gaotai on the D51-250 staving press rolling.
External sleeve blank described in the technical solution of the present invention after the rolling on the staving press on the J31-125 forcing press whole footpath.
Inner sleeve blank described in the technical solution of the present invention jumping-up, extruding, perforation on the J31-400 forcing press.
Inner sleeve blank described in the technical solution of the present invention after jumping-up, extruding, the perforation on the forcing press on the D51-250 staving press rolling.
Interior cover blank described in the technical solution of the present invention is directly whole on the J31-125 forcing press after rolling over expansion on the staving press.
Carry out conceptual design through absorbing all the useful ideas to break the normal procedure, the pluses and minuses that the special-shaped cover of contrast radial ball bearing cover forging process and taper roll bearing is forged, the present invention is owing to adopt the flat high base technology of a kind of novel pressure slope and a kind of reversal of the natural order of things roller rolling technology, thereby the technology of having finished each operation such as the heating, blanking, jumping-up, branch cover of product, flat height, rolling, whole footpath mates, and realized the synchronous production of inner and outer ring.
Technical characteristics of the present invention and innovative point are to adopt the flat high base technology of a kind of novel pressure slope and a kind of reversal of the natural order of things roller rolling technology, have realized medium-and-large-sized taper roll bearing inner and outer ring forging synchronous production made in Great Britain.The present invention have be fit to that medium-and-large-sized conical bearing inner and outer ring forging made in Great Britain is produced in batches simultaneously, stock utilization height, the higher characteristics of production efficiency.The present invention is mainly used in medium-and-large-sized taper roll bearing Internal and external cycle forging made in Great Britain and produces simultaneously, belongs to domestic initiation, has a extensive future, and techno-economic effect is remarkable.
Description of drawings
Fig. 1 is that medium-and-large-sized conical roller bearing ring made in Great Britain of the present invention is inside and outside with the cover process flow diagram.
Fig. 2 is the material section jumping-up schematic diagram of the present invention's heating.
Fig. 3 divides the cover schematic diagram for inner-outer sleeve blank of the present invention.
Fig. 4 is the flat high schematic diagram of external sleeve blank pressure slope of the present invention.
Fig. 5 is external sleeve blank rolling schematic diagram of the present invention.
The specific embodiment
The inside and outside concrete grammar with cover technology of a kind of medium-and-large-sized conical roller bearing ring made in Great Britain of the present invention is:
⑴, weight is heated to 1050 ℃ at 1.000～4.500 kilograms, diameter in the GCr15 of φ 50～φ 75 steel material section on the KGPS-800 intermediate frequency furnace, this heating material section jumping-up, branch cover on the J31-400 forcing press, be separated into bearing outside blank and bearing inner sleeve blank two parts then;
, external sleeve blank be placed on the upper pressure slope of J31-400 forcing press Ping Gaotai flat high after on the D51-250 staving press rolling, whole footpath on the J31-125 forcing press becomes same set of medium-and-large-sized taper roll bearing overcoat forging made in Great Britain after the cooling again;
⑶, the inner sleeve blank is placed on the J31-400 forcing press after jumping-up, extruding, the perforation rolling on the D51-250 staving press, whole footpath on the J31-125 forcing press becomes same set of taper roll bearing inner sleeve forging made in Great Britain after the cooling again.
Critical process embodiment of the present invention is as follows.
The jumping-up operation: jumping-up is that the material section of heating is highly reduced and the cross section increase under upper upsetting and lower upsetting effect, removes hammer scale, prepares for next step blank divides cover operation.The height of blank jumping-up is generally than the high 10 ~ 15mm of height of external sleeve blank.Material section jumping-up schematic diagram is seen Fig. 2, is upper upsetting 1, blank 2, lower upsetting 3 among Fig. 2.
Divide the cover operation: adopt based on the radial ball bearing blank and divide the cover technology.Dividing cover is that the blank behind the jumping-up is put into positioning module with minute cover die, divides cover to rush the branch cover of finishing the inner-outer sleeve blank along with forcing press from top to bottom.The diameter that divides the cover punching decide according to the weight of the height of blank jumping-up and inner sleeve blank, the internal diameter of positioning module according to the external diameter of blank jumping-up calmly, the angle of positioning module is generally chosen the raceway angles integer value of external sleeve blank.The inner-outer sleeve blank divides the cover schematic diagram to see Fig. 3, overlaps punching 4, blank 5, positioning module 6 for dividing among Fig. 3, divides cover die 7.
Flat high operation: difficult point of the present invention and innovative point, pressure slope is equalled high base key problem in technology operation.The flat height of pressure slope is that the blank behind minute cover is placed on the Ping Gaotai that has positioning table and pressure slope frustum, and last the rammer finished the base of external sleeve blank from top to bottom along with forcing press.Positioning table on the Ping Gaotai is external sleeve blank location usefulness, the little 2-2.5mm of diameter of its diameter score cover punching.The angle of the pressure slope frustum on the pressure slope Ping Gaotai is generally chosen bigger 8 ~ 12 ° than the raceway angles of external sleeve blank, the high 1mm of height of the aspect ratio overcoat forging behind the flat height of external sleeve blank.The flat high schematic diagram of external sleeve blank pressure slope is seen Fig. 4, is upper upsetting 8, blank 9, flat high platform 10 among Fig. 4.
Rolling operation: reversal of the natural order of things roller rolling key problem in technology operation.External sleeve blank rolling expansion mode adopts and shows with spreading rolls the opposite mode of direction, promptly rolles over expansion schematic diagram 5 modes by external sleeve blank and hangs upside down roller rolling expansion.The outside diameter that spreading is rolled is decided according to the diameter that divides cover to dash, the little 4-5mm of diameter that its diameter score cover dashes, so that external sleeve blank is put into, the angle that spreading is rolled is chosen the raceway angles value of external sleeve blank.Reversal of the natural order of things roller rolling mode is conducive to elimination and the forging assembling R angle of overcoat forging internal diameter burr and rolles over out.External sleeve blank is rolled over the expansion schematic diagram and is seen Fig. 5, rolls 13 for roll milling wheel 11, external sleeve blank 12, spreading among Fig. 5.
Claims (9)
1. a medium-and-large-sized conical roller bearing ring made in Great Britain is inside and outside with cover technology, it is characterized in that:
⑴, weight is heated to 1050 ℃ at 1.000～4.500 kilograms, diameter in the GCr15 of φ 50～φ 75 steel material section on intermediate frequency furnace, this heating material section jumping-up, branch cover on forcing press, be separated into bearing outside blank and bearing inner sleeve blank two parts then;
, external sleeve blank be placed on the upper pressure slope of forcing press Ping Gaotai flat high after on staving press rolling, whole footpath on forcing press becomes same set of medium-and-large-sized taper roll bearing overcoat forging made in Great Britain after the cooling again;
⑶, interior cover blank is placed on to roll on staving press after jumping-up on the forcing press, extruding, the perforation expands, whole footpath on forcing press becomes cover forging in the same set of taper roll bearing made in Great Britain after the cooling again.
2. a kind of medium-and-large-sized conical roller bearing ring made in Great Britain according to claim 1 is inside and outside with cover technology, and it is characterized in that: described GCr15 steel material section is heated to 1050 ℃ on the KGPS-800 intermediate frequency furnace.
3. a kind of medium-and-large-sized conical roller bearing ring made in Great Britain according to claim 1 is inside and outside with cover technology, it is characterized in that: described heating material section is jumping-up, branch cover on the J31-400 forcing press.
4. a kind of medium-and-large-sized conical roller bearing ring made in Great Britain according to claim 1 is inside and outside with cover technology, it is characterized in that: described external sleeve blank pressure slope on J31-400 forcing press Ping Gaotai is flat high.
5. a kind of medium-and-large-sized conical roller bearing ring made in Great Britain according to claim 1 is inside and outside with cover technology, it is characterized in that: described external sleeve blank behind the flat height of pressure slope on the forcing press Ping Gaotai on the D51-250 staving press rolling.
6. a kind of medium-and-large-sized conical roller bearing ring made in Great Britain according to claim 1 is inside and outside with cover technology, it is characterized in that: described external sleeve blank after the rolling on the staving press on the J31-125 forcing press whole footpath.
7. a kind of medium-and-large-sized conical roller bearing ring made in Great Britain according to claim 1 is inside and outside with cover technology, it is characterized in that: described inner sleeve blank jumping-up, extruding, perforation on the J31-400 forcing press.
8. a kind of medium-and-large-sized conical roller bearing ring made in Great Britain according to claim 1 is inside and outside with cover technology, it is characterized in that: described inner sleeve blank after jumping-up, extruding, the perforation on the forcing press on the D51-250 staving press rolling.
9. a kind of medium-and-large-sized conical roller bearing ring made in Great Britain according to claim 1 is inside and outside with cover technology, it is characterized in that: described inner sleeve blank after the rolling on the staving press on the J31-125 forcing press whole footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110053121.9A CN102211135B (en) | 2011-03-07 | 2011-03-07 | A kind of medium-and-large-sized conical roller bearing ring made in Great Britain is inside and outside with overlapping technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110053121.9A CN102211135B (en) | 2011-03-07 | 2011-03-07 | A kind of medium-and-large-sized conical roller bearing ring made in Great Britain is inside and outside with overlapping technique |
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| CN102211135A true CN102211135A (en) | 2011-10-12 |
| CN102211135B CN102211135B (en) | 2015-08-05 |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528080A (en) * | 2012-01-12 | 2012-07-04 | 湖州以创轴承有限公司 | Tower part turning process |
| CN102909535A (en) * | 2012-11-01 | 2013-02-06 | 无锡民联轴承制造有限公司 | Method for rolling and forging bearing ring once |
| CN102921846A (en) * | 2012-10-22 | 2013-02-13 | 山东鲁南轴承有限责任公司 | Mold for ring rolling tapered roller bearing outer ring |
| CN103639672A (en) * | 2013-12-27 | 2014-03-19 | 希西维轴承（盱眙）有限公司 | Forging technology of saddle groove bearing |
| CN103659161A (en) * | 2012-09-14 | 2014-03-26 | 晋江市文生五金冲件有限公司 | Forming process of conical roller bearing inner ring large flange groove |
| CN105215258A (en) * | 2015-11-17 | 2016-01-06 | 中航工业哈尔滨轴承有限公司 | A kind of forging method reducing bearing fine crack defective proportion |
| CN106141049A (en) * | 2016-08-31 | 2016-11-23 | 无锡派克新材料科技股份有限公司 | Small-bore steep-taper taper annular element forging and forming technology |
| CN106736293A (en) * | 2016-12-29 | 2017-05-31 | 常熟市常轴轴承有限公司 | The forging technology of high accuracy fork truck bearing ring |
| CN107186140A (en) * | 2017-06-30 | 2017-09-22 | 陕西宏远航空锻造有限责任公司 | A kind of in-flanges tubular high temperature alloy product manufacture method, prefabricated-member mould and flanging die |
| CN107695280A (en) * | 2017-09-20 | 2018-02-16 | 襄阳润欣圆锻造有限公司 | T section annular forging piece forming process of roll milling |
| CN108284195A (en) * | 2018-03-02 | 2018-07-17 | 江苏保捷精锻有限公司 | A kind of bearing race production line and its working method with Medium Frequency Induction Heating Furnace |
| CN108500196A (en) * | 2018-03-12 | 2018-09-07 | 希西维轴承（盱眙）有限公司 | A kind of double-row bearing part double channel rolling core roller and its forging method |
| CN111774810A (en) * | 2020-04-08 | 2020-10-16 | 无锡易通精密机械股份有限公司 | Large-scale bearing ring blank forming processing technology |
| CN112404337A (en) * | 2020-10-21 | 2021-02-26 | 洛阳市洛凌轴承科技股份有限公司 | NU2300 series bearing sleeve forging process |
| CN113427205A (en) * | 2021-05-25 | 2021-09-24 | 江苏省社渚轴承有限公司 | Full-automatic sleeve forging method and process |
| CN114603079A (en) * | 2022-03-10 | 2022-06-10 | 西北工业大学 | Carbide refining method for flat-bottom bearing ring |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528080A (en) * | 2012-01-12 | 2012-07-04 | 湖州以创轴承有限公司 | Tower part turning process |
| CN103659161A (en) * | 2012-09-14 | 2014-03-26 | 晋江市文生五金冲件有限公司 | Forming process of conical roller bearing inner ring large flange groove |
| CN102921846A (en) * | 2012-10-22 | 2013-02-13 | 山东鲁南轴承有限责任公司 | Mold for ring rolling tapered roller bearing outer ring |
| CN102909535A (en) * | 2012-11-01 | 2013-02-06 | 无锡民联轴承制造有限公司 | Method for rolling and forging bearing ring once |
| CN102909535B (en) * | 2012-11-01 | 2015-04-15 | 无锡民联轴承制造有限公司 | Method for rolling and forging bearing ring once |
| CN103639672A (en) * | 2013-12-27 | 2014-03-19 | 希西维轴承（盱眙）有限公司 | Forging technology of saddle groove bearing |
| CN105215258A (en) * | 2015-11-17 | 2016-01-06 | 中航工业哈尔滨轴承有限公司 | A kind of forging method reducing bearing fine crack defective proportion |
| CN106141049B (en) * | 2016-08-31 | 2018-06-08 | 无锡派克新材料科技股份有限公司 | Small-bore steep-taper taper annular element forging and forming technology |
| CN106141049A (en) * | 2016-08-31 | 2016-11-23 | 无锡派克新材料科技股份有限公司 | Small-bore steep-taper taper annular element forging and forming technology |
| CN106736293A (en) * | 2016-12-29 | 2017-05-31 | 常熟市常轴轴承有限公司 | The forging technology of high accuracy fork truck bearing ring |
| CN107186140A (en) * | 2017-06-30 | 2017-09-22 | 陕西宏远航空锻造有限责任公司 | A kind of in-flanges tubular high temperature alloy product manufacture method, prefabricated-member mould and flanging die |
| CN107695280A (en) * | 2017-09-20 | 2018-02-16 | 襄阳润欣圆锻造有限公司 | T section annular forging piece forming process of roll milling |
| CN108284195A (en) * | 2018-03-02 | 2018-07-17 | 江苏保捷精锻有限公司 | A kind of bearing race production line and its working method with Medium Frequency Induction Heating Furnace |
| CN108500196A (en) * | 2018-03-12 | 2018-09-07 | 希西维轴承（盱眙）有限公司 | A kind of double-row bearing part double channel rolling core roller and its forging method |
| CN111774810A (en) * | 2020-04-08 | 2020-10-16 | 无锡易通精密机械股份有限公司 | Large-scale bearing ring blank forming processing technology |
| CN111774810B (en) * | 2020-04-08 | 2021-09-24 | 无锡易通精密机械股份有限公司 | Large-scale bearing ring blank forming processing technology |
| CN112404337A (en) * | 2020-10-21 | 2021-02-26 | 洛阳市洛凌轴承科技股份有限公司 | NU2300 series bearing sleeve forging process |
| CN112404337B (en) * | 2020-10-21 | 2024-04-12 | 洛阳市洛凌轴承科技股份有限公司 | NU2300 series bearing sleeve forging process |
| CN113427205A (en) * | 2021-05-25 | 2021-09-24 | 江苏省社渚轴承有限公司 | Full-automatic sleeve forging method and process |
| CN114603079A (en) * | 2022-03-10 | 2022-06-10 | 西北工业大学 | Carbide refining method for flat-bottom bearing ring |
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