CN102528080B - Tower part turning process - Google Patents
Tower part turning process Download PDFInfo
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- CN102528080B CN102528080B CN 201210008647 CN201210008647A CN102528080B CN 102528080 B CN102528080 B CN 102528080B CN 201210008647 CN201210008647 CN 201210008647 CN 201210008647 A CN201210008647 A CN 201210008647A CN 102528080 B CN102528080 B CN 102528080B
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- inner ring
- turning
- blank
- cycle
- tower spare
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Abstract
The invention discloses tower part turning process. The power part turning process includes steps of a), molding a tower part by means of cold extrusion; b), turning an outer circle of an outer ring integrally; c), turning a raceway of an inner ring integrally; d), turning the upper end surface of the inner ring integrally; e), separating the inner ring from the outer ring; f), turning end surfaces of the inner ring; g), turning an oil groove of the inner ring; and h), turning end surfaces of the outer ring. By the aid of the process, the inner ring and the outer ring of a machined bearing are high in precision and fine in compatibility. In addition, machining speed is fast, and efficiency is high.
Description
Technical field
The present invention relates to bearing and make the field, relate to a kind of turning process of making bearing inner race, outer ring in particular.
Background technology
Bearing, generally all comprise inner ring, the outer ring, between inner ring and outer ring, be provided with ball, make the rotation that both can be mutual, the inner ring of bearing, the making of outer ring, realize by turning now, its technology is such: conjuncted forging-rough turn-Internal and external cycle cross grinding-Internal and external cycle cylindricalo grinding-Internal and external cycle finish turning, whole process, at first obtain conjuncted forging (tower spare) by forging press, make the conjuncted separation of forging (being separated into Internal and external cycle) by rough turn then, carry out grinding in the upper and lower end face to the Internal and external cycle that obtains then, carry out the cylindricalo grinding of Internal and external cycle after the completion of processing of upper and lower end face again and make inner ring raceway, carry out inner ring and outer ring that the Internal and external cycle finish turning obtains finished product at last.From above-mentioned process we as can be seen, existing bearing Internal and external cycle processing circulation number of times process equipment quantity very many, that use are many, locate often, and it is just to be the inner ring raceway of benchmark processing with the inner ring endoporus after the separation of Internal and external cycle, the axiality of inner ring raceway and outer ring endoporus has reduced, the factor that these are comprehensive, caused that the bearing enclose low precision, the qualification rate that process are low, quality stability is bad, and long processing time, inefficiency.
Summary of the invention
The present invention be directed to the deficiencies in the prior art part, a kind of tower spare turning process is provided, the inner ring that it processes and outer ring precision height, fitness is good, and process velocity is fast.
Technical scheme of the present invention is as follows; Tower spare turning process may further comprise the steps: a) cold extrusion shaped tower spare; Described tower spare is made of cycle blank and inner ring blank;
B) conjuncted turning outer ring cylindrical; Back, described tower spare location is fixing, the outer surface of turning cycle blank;
C) conjuncted turning inner ring raceway; The lower surface of turning cycle blank, the outer surface of turning inner ring blank forms inner ring raceway;
D) conjuncted turning inner ring upper surface; Described tower spare is located the back again fix, the upper surface of turning inner ring blank forms a junction between inner ring blank and cycle blank;
E) inner ring separates with the outer ring; Inner ring blank and cycle blank are left in connecting portion punishment, form the inner ring blank and the cycle blank that separate;
F) turning inner ring end face; It is fixing that the inner ring blank that will obtain after will separating through step e) positions the back, and the upper surface of turning inner ring blank makes the length of inner ring meet the requirements;
G) turning inner ring oil duct; Fixing to positioning the back again through the finished inner ring blank of step f), the big oil duct of turning, little oil duct obtain qualified inner ring then;
H) turning cycle surface, the cycle blank that will obtain after will separating through step e) positions, and the lower surface of turning cycle blank makes the length of cycle blank meet the requirements, and obtains qualified outer ring.
As preferably, the wall thickness of the described connecting portion in the described step d) is at 0.6-1.0mm, and length is at 0.3-0.6mm.
As preferably, the wall thickness of the described connecting portion in the described step d) is at 0.8mm, and length is at 0.4mm.
As preferably, in the described step b), go back the fillet of turning inner ring blank lower surface and endoporus intersection.
As preferably, described step h) in, the fillet of turning cycle blank lower surface and endoporus intersection also.
As preferably, in the described step d), go back turning cycle blank upper surface.
As preferably, in the described step e), the inner ring blank is to rely on impulsive force to realize with cycle blank in separating of connecting portion place.
As preferably, in the described step e), described tower spare is placed on the seperator, the drift that utilizes seperator applies impulsive force to the upper surface of inner ring blank, make inner ring blank and cycle blank leave in connecting portion punishment, form the inner ring blank and the cycle blank that separate.
Beneficial effect of the present invention is: the inner ring and the outer ring precision height that adopt this processes to come out, to work good, and process velocity is fast.
Description of drawings
The present invention is described further below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of tower spare of the present invention;
Fig. 2 is the work schematic diagram of conjuncted turning cycle blank cylindrical among the present invention;
Fig. 3 is the work schematic diagram of conjuncted turning inner ring raceway among the present invention;
Fig. 4 is the work schematic diagram of conjuncted turning inner ring upper and lower end face among the present invention;
The work schematic diagram that Fig. 5 separates with the outer ring for inner ring among the present invention;
Fig. 6 is the work schematic diagram of turning inner ring end face among the present invention;
Fig. 7 is the work schematic diagram of turning inner ring oil duct among the present invention;
Fig. 8 is the work schematic diagram of turning cycle surface among the present invention.
Among the figure:
1-tower spare, 101-cycle blank, 101a-endoporus, 101b-upper surface, 101c-lower surface, the 101d-fillet, 102-inner ring blank, 102a-inner ring, 102b-lower surface, 102c-upper surface, the 102d-inner ring raceway, 102e-fillet, the big oil duct of 102f-, the little oil duct of 102g-;
The pneumatic support claw of 2-;
The 3-baffle plate;
The 4-drift;
A-first bite;
B-second bite;
The C-bite;
The D-bite;
The E-bite;
The F-bite;
The G-bite;
The H-bite;
The I-bite;
The J-bite.
The specific embodiment
Embodiment, tower spare turning process, see accompanying drawing 1, Fig. 1 is the structural representation of tower spare 1, and tower spare is cold extrusion shaped by hydraulic press, as can be seen from the figure, tower spare 1 is made of cycle blank 101 and inner ring blank 102, the endoporus 101a of cycle blank 101, the endoporus 102a of inner ring blank 102 have made in the time of cold-stamped, because this cold extruding technique has been the known technology in this area, are not described in detail in this.
See accompanying drawing 2, conjuncted turning outer ring cylindrical; Utilize the pneumatic support claw 2 of lathe to position, fix described tower spare 1, pneumatic support claw 2 stretches among the endoporus 101a of cycle blank 101, open then, be that benchmark positions with endoporus 101a, and tower spare is fixed, be with tower spare rotation by pneumatic support claw 2 then, utilizing the outer surface of the first bite A turning cycle blank 101, meeting standard-required until the outer surface of cycle blank 101; Simultaneously, also utilize the second bite B turning to go out the lower surface 102b of inner ring blank and the fillet of endoporus 102a intersection, and the first bite A and the second bite B carry out work simultaneously.
See accompanying drawing 3, conjuncted turning inner ring raceway; Utilize the lower surface 101c of the first bite car A turning cycle blank 101, simultaneously, utilize the outer surface of the second bite B turning inner ring blank 102, form inner ring raceway 102d; And, the first bite A and the second bite B carry out turning simultaneously, in the present embodiment, conjuncted turning cycle blank cylindrical and conjuncted turning inner ring raceway carry out at a station, and, conjuncted turning cycle blank cylindrical, these two steps of conjuncted turning inner ring raceway continue to carry out, therefore, this twice turning need one-time positioning just passable, because the front is talked about, be to be that benchmark positions with endoporus 101a, so in processing inner ring raceway 102d, be benchmark with endoporus 101a, so just guaranteed axiality between the two, reduced error, than existing tower spare is separated earlier after, the endoporus 102a of recycling inner ring blank positions, endoporus 102a with the inner ring blank processes inner ring raceway for coming benchmark, not only improve greatly on the precision, simultaneously, make that also the quality of fit of inner ring raceway and endoporus 101a is higher, it is littler to beat after the assembling, because understanding the technical staff of field of bearings can both know, in the bearing assembling, between endoporus 101a and inner ring raceway 102d, be provided with a retainer, be provided with steel ball or bullet in the retainer, retainer makes the rolling that both can be mutual between endoporus 101a and inner ring raceway 102d, therefore, be that benchmark is processed inner ring raceway 102d with endoporus 101a, can improve the machining accuracy of inner ring raceway, improve both fitnesss, be convenient to assembling.
See accompanying drawing 4, conjuncted turning inner ring upper surface; Utilize pneumatic support claw to locate back fixing again the tower spare 1 of the intact inner ring raceway of turning, locating with endoporus 102a specifically is benchmark, utilize the upper surface 102c of bite C turning inner ring blank, utilize bite D turning cycle blank upper surface 101b, in the time of the upper surface 102c of turning inner ring blank, between inner ring blank and cycle blank, form a junction 103; General, in the art, the wall thickness of connecting portion is at 0.6-1.0mm, and length wherein, is the best in 0.8mm, length at 0.4mm with the wall thickness of connecting portion between 0.3-0.6mm, the separating of the most suitable inner ring blank of this size and cycle blank.
See accompanying drawing 5, inner ring separates with the outer ring; Tower spare is placed on the seperator, wherein, inner ring blank 102 inserts in the hole of baffle plate 3, and cycle blank 101 is because diameter is bigger, then blocked by baffle plate 3, so just can utilize the upper surface 102c of 4 pairs of inner ring blanks of drift of seperator to apply impulsive force, make inner ring blank and cycle blank leave in connecting portion punishment, form the inner ring blank and the cycle blank that separate; Because important inner ring raceway is completion of processing, the remaining part that needs to process is not very high for precision and cooperation requirement, so make this time the inner ring blank separate with cycle blank, can allow both use lathe to process simultaneously, increase work efficiency, and inner ring provided by the present invention separates with the outer ring, and the mode of be to adopt impacting carries out, separating rate is fast, whole separation process only needs the time about 1 second, and the mode that in the past adopted turning to separate, then needed tens seconds even the longer time, therefore adopt separate mode provided by the invention, speed is fast, the efficient height.
See accompanying drawing 6, turning inner ring end face; It is fixing to position the back through the inner ring blank that obtains after the above-mentioned separation, and current location is benchmark with endoporus 102a, is aided with lower surface 102b, utilizes bite car E to cut the upper surface 102c of inner ring blank, makes the length of inner ring meet the requirements; Simultaneously, utilize upper surface 102c and the endoporus 102a intersection of bite F turning inner ring blank, it is carried out fillet, form fillet 102e.
See accompanying drawing 7, turning inner ring oil duct; To positioning again through the satisfactory inner ring blank of finished length, current location is benchmark with endoporus 102a, is aided with upper surface 102c, utilizes the big oil duct 102f of bite G turning then, utilize the little oil duct 102g of bite H turning, obtain qualified inner ring; Wherein, the stock removal action of bite G and bite H is carried out simultaneously, that is to say, the big oil duct 102f of turning and the little oil duct 102g of turning carry out simultaneously, certainly, also can carry out respectively.
See accompanying drawing 8, the turning cycle surface, the cycle blank that obtains after separating is positioned, fixes, utilize the lower surface 101c of bite I turning cycle blank, make the length of cycle blank meet the requirements, utilize the lower surface 101c of bite J turning cycle blank and fillet 101d and the lower surface 101c of cycle blank and the fillet of outer surface intersection of endoporus 101a intersection, obtain qualified outer ring.
Claims (9)
1. tower spare turning process, the cold extrusion shaped tower spare of step a); Described tower spare is made of cycle blank and inner ring blank; It is characterized in that may further comprise the steps:
B) conjuncted turning outer ring cylindrical; Back, described tower spare location is fixing, the outer surface of turning cycle blank;
C) conjuncted turning inner ring raceway; The lower surface of turning cycle blank, the outer surface of turning inner ring blank forms inner ring raceway;
D) conjuncted turning inner ring upper surface; Described tower spare is located the back again fix, the upper surface of turning inner ring blank forms a junction between inner ring blank and cycle blank;
E) inner ring separates with the outer ring; Inner ring blank and cycle blank are left in connecting portion punishment, form the inner ring blank and the cycle blank that separate;
F) turning inner ring end face; It is fixing that the inner ring blank that will obtain after will separating through step e) positions the back, and the upper surface of turning inner ring blank makes the length of inner ring meet the requirements;
G) turning inner ring oil duct; Fixing to positioning the back again through the finished inner ring blank of step f), the big oil duct of turning, little oil duct obtain qualified inner ring then;
H) turning cycle surface, the cycle blank that will obtain after will separating through step e) positions, and the lower surface of turning cycle blank makes the length of cycle blank meet the requirements, and obtains qualified outer ring.
2. tower spare turning process according to claim 1 is characterized in that: the wall thickness of the described connecting portion in the described step d) is at 0.6-1.0mm, and length is at 0.3-0.6mm.
3. tower spare turning process according to claim 1 and 2 is characterized in that: the wall thickness of the described connecting portion in the described step d) is at 0.8mm, and length is at 0.4mm.
4. tower spare turning process according to claim 1 is characterized in that: in the described step b), go back the fillet of turning inner ring blank lower surface and endoporus intersection.
5. tower spare turning process according to claim 1 is characterized in that: described step h), go back the fillet of turning cycle blank lower surface and endoporus intersection.
6. tower spare turning process according to claim 1 is characterized in that: in the described step d), go back turning cycle blank upper surface.
7. tower spare turning process according to claim 1 is characterized in that: in the described step e), the inner ring blank is to rely on impulsive force to realize with cycle blank in separating of connecting portion place.
8. tower spare turning process according to claim 7, it is characterized in that: in the described step e), described tower spare is placed on the seperator, the drift that utilizes seperator applies impulsive force to the upper surface of inner ring blank, make inner ring blank and cycle blank leave in connecting portion punishment, form the inner ring blank and the cycle blank that separate.
9. tower spare turning process according to claim 1 is characterized in that: described step b), step c) continue to carry out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210008647 CN102528080B (en) | 2012-01-12 | 2012-01-12 | Tower part turning process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210008647 CN102528080B (en) | 2012-01-12 | 2012-01-12 | Tower part turning process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102528080A CN102528080A (en) | 2012-07-04 |
| CN102528080B true CN102528080B (en) | 2013-07-17 |
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ID=46336794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210008647 Active CN102528080B (en) | 2012-01-12 | 2012-01-12 | Tower part turning process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102528080B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2913811A (en) * | 1956-12-20 | 1959-11-24 | American Radiator & Standard | Cold extrusion of bearing races |
| GB1341202A (en) * | 1970-06-18 | 1973-12-19 | Timken Co | Bearing rings |
| CN85100402A (en) * | 1985-04-01 | 1986-07-09 | 湘潭大学 | A kind of cold extrusion technology that is used for 203 bearing rings |
| JP4269349B2 (en) * | 1998-03-10 | 2009-05-27 | 日本精工株式会社 | Rolling bearing race |
| JP2007130673A (en) * | 2005-11-11 | 2007-05-31 | Sanyo Special Steel Co Ltd | Manufacturing method of outer and inner ring of bearing race using in bearing steel pipe |
| CN102211135B (en) * | 2011-03-07 | 2015-08-05 | 襄阳汽车轴承股份有限公司 | A kind of medium-and-large-sized conical roller bearing ring made in Great Britain is inside and outside with overlapping technique |
-
2012
- 2012-01-12 CN CN 201210008647 patent/CN102528080B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102528080A (en) | 2012-07-04 |
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