CN102211135B - A kind of medium-and-large-sized conical roller bearing ring made in Great Britain is inside and outside with overlapping technique - Google Patents
A kind of medium-and-large-sized conical roller bearing ring made in Great Britain is inside and outside with overlapping technique Download PDFInfo
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- CN102211135B CN102211135B CN201110053121.9A CN201110053121A CN102211135B CN 102211135 B CN102211135 B CN 102211135B CN 201110053121 A CN201110053121 A CN 201110053121A CN 102211135 B CN102211135 B CN 102211135B
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Abstract
Name of the present invention is called that a kind of medium-and-large-sized conical roller bearing ring made in Great Britain is inside and outside with overlapping technique.Belong to conical roller bearing ring technical field of forging made in Great Britain.It mainly solves the problem that existing medium-and-large-sized tapered roller bearing ring Forging Technology made in Great Britain can not solve Internal and external cycle simultaneously forging.Its principal character is: (1) GCr15 steel material section is heated on intermediate frequency furnace, and then jumping-up, point cover on forcing press, be separated into external sleeve blank and inner sleeve blank two parts; (2) flat high for external sleeve blank pressure slope on forcing press, rolling on staving press, whole footpath on forcing press, becomes same set of medium-and-large-sized taper roll bearing overcoat forging made in Great Britain after cooling; (3) inner sleeve blank is placed on jumping-up on forcing press, extruding, perforation, rolling on staving press, whole footpath on forcing press, after cooling, becomes same set of taper roll bearing inner sleeve forging made in Great Britain.The present invention has the advantages that stock utilization is high, production efficiency is higher, is mainly used in medium-and-large-sized taper roll bearing Internal and external cycle forging made in Great Britain and produces simultaneously.
Description
Technical field
The invention belongs to conical roller bearing ring technical field of forging made in Great Britain.Be specifically related to a kind of adopt radial ball bearing blank divide cover technique and a kind of novel pressure slope put down that high blank-making technology combines, be applicable to the medium-and-large-sized taper roll bearing inner and outer ring manufacture method of simultaneously forging.
Background technology
Medium-and-large-sized taper roll bearing product made in Great Britain is one of main Types of the foreign trade bearing outlet product developed in recent years, and in the recent period along with foreign trade is supplied in enormous quantities, its forging balanced production, energy-saving material-saving extremely each side are paid close attention to.By the restriction of product structure, process unit and technical merit, except part middle-size and small-size radial ball bearing product forging, middle-size and small-size taper roller product forging made in Great Britain implement inside and outside with except cover explained hereafter, medium-and-large-sized taper roll bearing forging made in Great Britain generally adopts now intrinsic special-shaped combined 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 parent cover.Due to point cover preponderance of medium-and-large-sized taper roll bearing product inner ring forging, utilize the forging of existing intrinsic abnormal shape cover and inside and outside same Analysis of Nested Design principle and technology and pattern assembly, it is almost impossible for completing that this forging Internal and external cycle produces simultaneously.Not mating again due to different bearing product yield, inconvenience is brought to balanced production, therefore, existing intrinsic cover forging processing technology can not carry out forging to medium-and-large-sized conical bearing inner and outer ring made in Great Britain simultaneously, Improvement must be carried out to now intrinsic cover forging processing technology, explore new technology, the new method of the synchronous forging of medium-and-large-sized taper roll bearing inner and outer ring, realize the synchronous batch production of medium-and-large-sized taper roll bearing inner and outer ring forging.
Summary of the invention
Object of the present invention is exactly provide a kind of radial ball bearing blank to divide cover technique and the novel pressure slope of one to put down high blank-making technology to combine for above-mentioned weak point, and stock utilization is high, production efficiency is higher, be applicable to the manufacture method of medium-and-large-sized inner and outer rings of conical bearings mass simultaneous production made in Great Britain.
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 overlapping technique, it is characterized in that:
(1), weight 1.000 ~ 4.500 kilograms, diameter is heated to 1050 DEG C in the GCr15 steel material section of φ 50 ~ φ 75 on intermediate frequency furnace, then this heating material section jumping-up, point cover on forcing press, bearing outside blank and bearing inner sleeve blank two parts are separated into;
(2), external sleeve blank be placed on pressure slope in the flat plateau of forcing press and equal after high rolling on staving press, then on forcing press whole footpath, become same set of medium-and-large-sized taper roll bearing overcoat forging made in Great Britain after cooling;
(3), inner sleeve blank to be placed on after jumping-up on forcing press, extruding, perforation rolling on staving press, then on forcing press whole footpath, become same set of taper roll bearing inner sleeve forging made in Great Britain after cooling.
GCr15 steel material section described in technical solution of the present invention is heated to 1050 DEG C on KGPS-800 intermediate frequency furnace.
Heating material section described in technical solution of the present invention is jumping-up, point cover on J31-400 forcing press.
External sleeve blank described in technical solution of the present invention pressure slope in the flat plateau of J31-400 forcing press is put down high.
External sleeve blank described in technical solution of the present invention after in the flat plateau of forcing press, pressure slope puts down height on D51-250 staving press rolling.
External sleeve blank described in technical solution of the present invention on staving press after rolling on J31-125 forcing press whole footpath.
Inner sleeve blank described in technical solution of the present invention jumping-up, extruding, perforation on J31-400 forcing press.
Inner sleeve blank described in technical solution of the present invention on forcing press after jumping-up, extruding, perforation on D51-250 staving press rolling.
Inner sleeve blank described in technical solution of the present invention on staving press after rolling on J31-125 forcing press whole footpath.
Conceptual design is carried out through absorbing all the useful ideas to break the normal procedure, the pluses and minuses of contrast radial ball bearing combined forging process and the forging of taper roll bearing abnormal shape cover, the present invention equals high base technology and a kind of reversal of the natural order of things roller rolling technology owing to adopting a kind of novel pressure slope, thus complete the technology coupling of the heating of product, blanking, jumping-up, point each operation such as cover, flat height, rolling, whole footpath, achieve the synchronous production of inner and outer ring.
Technical characteristics of the present invention and innovative point adopt a kind of novel pressure slope to equal high base technology and a kind of reversal of the natural order of things roller rolling technology, achieves medium-and-large-sized taper roll bearing inner and outer ring forging synchronous production made in Great Britain.The present invention has the applicable medium-and-large-sized feature that conical bearing inner and outer ring forging mass simultaneous made in Great Britain is produced, stock utilization is high, production efficiency is higher.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, and belong to domestic initiation, have a extensive future, techno-economic effect is remarkable.
Accompanying drawing explanation
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 overlapping process flow diagram.
Fig. 2 is the material section jumping-up schematic diagram that the present invention heats.
Fig. 3 is that inner-outer sleeve blank of the present invention divides cover schematic diagram.
Fig. 4 is that external sleeve blank pressure slope of the present invention puts down high schematic diagram.
Fig. 5 is external sleeve blank rolling schematic diagram of the present invention.
Detailed description of the invention
The inside and outside concrete grammar with cover technique of a kind of medium-and-large-sized conical roller bearing ring made in Great Britain of the present invention is:
(1), weight 1.000 ~ 4.500 kilograms, diameter is heated to 1050 DEG C in the GCr15 steel material section of φ 50 ~ φ 75 on KGPS-800 intermediate frequency furnace, then this heating material section jumping-up, point cover on J31-400 forcing press, bearing outside blank and bearing inner sleeve blank two parts are separated into;
(2), external sleeve blank be placed on pressure slope in the flat plateau of J31-400 forcing press and equal after high rolling on D51-250 staving press, then on J31-125 forcing press whole footpath, become same set of medium-and-large-sized taper roll bearing overcoat forging made in Great Britain after cooling;
(3), inner sleeve blank to be placed on J31-400 forcing press after jumping-up, extruding, perforation rolling on D51-250 staving press, then on J31-125 forcing press whole footpath, become same set of taper roll bearing inner sleeve forging made in Great Britain after cooling.
Critical process embodiment of the present invention is as follows.
Jumping-up operation: jumping-up is that the material section of heating is highly reduced and cross section increase under upper upsetting and lower upsetting effect, removes hammer scale, for next step blank divides cover operation to prepare.The height generally 10 ~ 15mm higher than the height of external sleeve blank of blank jumping-up.Fig. 2 is shown in by material section jumping-up schematic diagram, is upper upsetting 1, blank 2, lower upsetting 3 in Fig. 2.
Divide cover operation: adopt and divide cover technology based on radial ball bearing blank.Point cover be jumping-up after blank put into positioning module with point cover die, point cover punching completes point cover of inner-outer sleeve blank from top to bottom along with forcing press.Divide the diameter of cover punching to determine according to the height of blank jumping-up and the weight of inner sleeve blank, the internal diameter of positioning module is fixed according to the external diameter of blank jumping-up, and the angle of positioning module generally chooses the raceway angles integer value of external sleeve blank.Inner-outer sleeve blank divides cover schematic diagram to see Fig. 3, is a point cover punching 4, blank 5, positioning module 6, point cover die 7 in Fig. 3.
Flat high operation: difficult point of the present invention and innovative point, pressure slope equals high base key problem in technology operation.The flat height of pressure slope be point cover after blank be placed in the flat plateau with positioning table and pressure slope frustum, upper upsetting completes the base of external sleeve blank from top to bottom along with forcing press.Positioning table in flat plateau is the little 2-2.5mm of diameter of external sleeve blank location use, the punching of its diameter score cover.The angle of the pressure slope frustum in the flat plateau of pressure slope generally chooses larger than the raceway angles of external sleeve blank 8 ~ 12 °, and external sleeve blank puts down the height height 1mm of the aspect ratio overcoat forging after height.External sleeve blank pressure slope is put down high schematic diagram and is seen Fig. 4, is upper upsetting 8, blank 9, flat plateau 10 in Fig. 4.
Rolling operation: reversal of the natural order of things roller rolling key problem in technology operation.External sleeve blank rolling mode adopts and shows rolls the contrary mode in direction with spreading, namely hangs upside down roller rolling by external sleeve blank rolling schematic diagram 5 mode.The outside diameter that spreading is rolled is determined, the little 4-5mm of diameter of its diameter score cover punching according to point diameter of cover punching, so that external sleeve blank is put into, the angle that spreading is rolled chooses the raceway angles value of external sleeve blank.Reversal of the natural order of things roller rolling mode is conducive to the elimination of overcoat forging internal diameter burr and forging assembling R angle is rolled over out.Fig. 5 is shown in by external sleeve blank rolling schematic diagram, for roll milling wheel 11, external sleeve blank 12, spreading roll 13 in Fig. 5.
Claims (9)
1. medium-and-large-sized conical roller bearing ring made in Great Britain is inside and outside with overlapping a technique, it is characterized in that:
(1), weight 1.000 ~ 4.500 kilograms, diameter is heated to 1050 DEG C in the GCr15 steel material section of φ 50 ~ φ 75 on intermediate frequency furnace, then this heating material section jumping-up, point cover on forcing press, bearing outside blank and bearing inner sleeve blank two parts are separated into; Cover is divided to be that the positioning module that the blank after jumping-up is put into point cover die is completed, the diameter of cover punching is divided to determine according to the height of blank jumping-up and the weight of inner sleeve blank, the internal diameter of positioning module is fixed according to the external diameter of blank jumping-up, and the angle of positioning module chooses the raceway angles integer value of external sleeve blank;
(2), external sleeve blank be placed on pressure slope in the flat plateau of forcing press and equal after high rolling on staving press, then on forcing press whole footpath, become same set of medium-and-large-sized taper roll bearing overcoat forging made in Great Britain after cooling; The flat height of pressure slope be point cover after blank be placed in the flat plateau with positioning table and pressure slope frustum, upper upsetting completes the base of external sleeve blank from top to bottom along with forcing press; The little 2-2.5mm of diameter of positioning table diameter score cover punching, the angle of pressure slope frustum chooses larger than the raceway angles of external sleeve blank 8 ~ 12 °, and external sleeve blank puts down the height height 1mm of the aspect ratio overcoat forging after height;
(3), inner sleeve blank to be placed on after jumping-up on forcing press, extruding, perforation rolling on staving press, then on forcing press whole footpath, become same set of taper roll bearing inner sleeve forging made in Great Britain after cooling.
2. the medium-and-large-sized conical roller bearing ring made in Great Britain of one according to claim 1 is inside and outside with overlapping technique, it is characterized in that: described GCr15 steel material section is heated to 1050 DEG C on KGPS-800 intermediate frequency furnace.
3. the medium-and-large-sized conical roller bearing ring made in Great Britain of one according to claim 1 is inside and outside with overlapping technique, it is characterized in that: described heating material section is jumping-up, point cover on J31-400 forcing press.
4. the medium-and-large-sized conical roller bearing ring made in Great Britain of one according to claim 1 is inside and outside with overlapping technique, it is characterized in that: described external sleeve blank pressure slope in the flat plateau of J31-400 forcing press is put down high.
5. the medium-and-large-sized conical roller bearing ring made in Great Britain of one according to claim 1 is inside and outside with overlapping technique, it is characterized in that: described external sleeve blank after in the flat plateau of forcing press, pressure slope puts down height on D51-250 staving press rolling.
6. the medium-and-large-sized conical roller bearing ring made in Great Britain of one according to claim 1 is inside and outside with overlapping technique, it is characterized in that: described external sleeve blank on staving press after rolling on J31-125 forcing press whole footpath.
7. the medium-and-large-sized conical roller bearing ring made in Great Britain of one according to claim 1 is inside and outside with overlapping technique, it is characterized in that: described inner sleeve blank jumping-up, extruding, perforation on J31-400 forcing press.
8. the medium-and-large-sized conical roller bearing ring made in Great Britain of one according to claim 1 is inside and outside with overlapping technique, it is characterized in that: described inner sleeve blank on forcing press after jumping-up, extruding, perforation on D51-250 staving press rolling.
9. the medium-and-large-sized conical roller bearing ring made in Great Britain of one according to claim 1 is inside and outside with overlapping technique, it is characterized in that: described inner sleeve blank on staving press after rolling on J31-125 forcing press whole footpath.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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 CN102211135A (en) | 2011-10-12 |
| CN102211135B true CN102211135B (en) | 2015-08-05 |
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| 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 |
| 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 |
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| 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 |
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