CN104084850A - Grinding process for large cylindrical roller end faces - Google Patents
Grinding process for large cylindrical roller end faces Download PDFInfo
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- CN104084850A CN104084850A CN201410303320.4A CN201410303320A CN104084850A CN 104084850 A CN104084850 A CN 104084850A CN 201410303320 A CN201410303320 A CN 201410303320A CN 104084850 A CN104084850 A CN 104084850A
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- China
- Prior art keywords
- grinding
- roller
- face
- end faces
- grinder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a grinding process for large cylindrical roller end faces, and belongs to the field of bearing machining. The grinding process is characterized by including the machining steps of a, preliminary grinding for the end faces, wherein the end faces are grinded preliminarily on a vertical type surface grinder, and it is guaranteed that the parallel error is within 4 micrometers after reversal grinding is performed three times; b, perpendicular error regrinding, wherein one end of a roller (4) is attracted by a magnetic pole (2) on an outer circle grinder and serves as the positioning basis, and the outer diameter is ground through reciprocating motion with the middle of an outer circle as a fulcrum bearing (3), so that the perpendicularity is improved, the diameter difference of the two ends is reduced, and cylindricity is improved; c, accurate grinding of the end faces, wherein one end face of the roller (4) is attracted by a magnetic disc (5) on a horizontal surface grinder, the outer diameter is supported so that the roller can rotate around the own axis, and a grinding wheel (1) is transversely fed to grind the other end face. The problems that the end faces, machined through an existing machining method, of a large roller are poor in accuracy, the efficiency is low, machining difficulty is large, and the technical requirement of rollers used for large bearings high in accuracy and rotation speed cannot be met are solved.
Description
Technical field
The invention belongs to bearing machining field, relate in particular to a kind of large cylindrical roller end face grinding process.
Background technology
The raising day by day requiring for running accuracy and rotating speed along with large-scale, extra large size bearing, as the rolling element of essential elements in rolling bearing, also more and more higher to its requirement, as: fast mill bearing rotating speed has reached tens thousand of rpms, and roller accuracy class requires to reach I ~ II level level; Due between bearing ring flange and roller end face for sliding friction, roller datum end face circle is beated excessive, for high-speed bearing, in tens seconds work initial stages kind of being everlasting, will cause lip-guided face sharply to wear and tear, lose guiding, bearing significantly reduces service life; Test shows, roller end face quality directly affects the robust motion of roller; And be greater than the grinding of the high accuracy cylinder roller end face of 50mm for outside dimension, ensure its datum end face circle S that beats
dwprecision be a processing difficulties all the time.
The conventional a kind of simple processing technology of end face of current large-scale roller Φ>=50mm is: universal plane grinding machine preliminary grinding roller end face, ensure its parallel error, then with V shape piece supporting external diameter, the large-scale roller of handmade rotary, carries out grinding by plane of grinding wheel to roller end face and ensures the datum end face circle S that beats
dw; The method that is characterized in is simple, and equipment interoperability is good, does not substantially need to adjust; But precision is poor, efficiency is low, the datum end face circle the processing S that beats
dwcan only reach 20 ~ 100 μ m, roughness Ra is 0. 4 μ m, can not meet the technical requirement of high accuracy, high rotating speed large size bearing roller.
Summary of the invention
The object of this invention is to provide a kind of large cylindrical roller end face grinding process, the end face precision of large-scale roller that has solved the processing of existing processing method is poor, efficiency is low, and difficulty of processing is large, can not meet the problem of the technical requirement of high accuracy, high rotating speed large size bearing roller.
In order to achieve the above object, the present invention by the following technical solutions, a kind of large cylindrical roller end face grinding process, procedure of processing is:
A, first face grinding: on vertical surface grinding machine, carry out preliminary grinding end face, ensure that parallel error is in 4 μ m after putting upside down grinding for 3 times;
B, reconditioning vertical difference: on cylindrical grinder, hold roller one end and as positioning datum with magnetic pole, taking cylindrical middle part as supporting, adopt and move back and forth mill external diameter;
C, fine grinding end face: on horizontal surface grinder, hold roller one end face location with disk, and support external diameter and make it around self axis rotation, wheel traverse reconditioning other end.
The invention has the beneficial effects as follows: the large-scale roller end face precision of utilizing this processes to go out is high and working (machining) efficiency is high, meet the technical requirement of high accuracy, high rotating speed large size bearing roller; It is higher that this process route is specially adapted to large-scale roller end face requirement on machining accuracy, be not again that too large roller is produced in batches, and precision still can further improve; For the production of the super-huge roller of high accuracy from now on, particularly high speed finishing mill bearing hew out a new route with the development of roller, be convenient to promote.
Brief description of the drawings
Fig. 1 is that reconditioning roller vertical difference is processed former schematic diagram.
Fig. 2 refines end face process principle schematic diagram.
In figure, 1, emery wheel, 2, magnetic pole, 3, supporting, 4, roller, 5, disk.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further, a kind of large cylindrical roller end face grinding process, for example process certain model bearing, its roller specification is Φ>=56mm × 87mm, and weight is 1. 67 kg, and material is G20Cr2Ni4A-GB3203 electroslag remelting, accuracy class requires as GB I level, requires the datum end face circle S that beats in these super-huge roller technical conditions
dwbe 6 μ m, roughness Ra is 0. 25 μ m; After roller preliminary grinding external diameter and end face, it is measured its S
dwbe 80 ~ 100 μ m, then according to following procedure of processing:
A, first face grinding: on vertical surface grinding machine, carry out preliminary grinding end face, ensure that parallel error is in 4 μ m after putting upside down grinding for 3 times; For rear operation processing is laid a solid foundation;
B, reconditioning vertical difference: as shown in fig. 1, on cylindrical grinder, hold roller 4 one end and as positioning datum with magnetic pole 2, taking cylindrical middle part as supporting 3, adopt and move back and forth mill external diameter; To improve perpendicularity, reduce difference between both ends, improve cylindricity;
C, fine grinding end face: as shown in Figure 2, on horizontal surface grinder, hold roller 4 one end faces location with disk 5, and support 3 external diameters it is rotated around self axis, emery wheel 1 traverse feed reconditioning other end.
The roller going out by this processes, surveys its datum end face circle S that beats through radius measurement method
dwcan be controlled in 5 μ m, roughness R a can reach 0. 16 μ m, and effect is more satisfactory.
The present invention does not describe part in detail, is those skilled in the art of the present technique's known technology.
Claims (1)
1. a large cylindrical roller end face grinding process, is characterized in that procedure of processing is:
A, first face grinding: on vertical surface grinding machine, carry out preliminary grinding end face, ensure that parallel error is in 4 μ m after putting upside down grinding for 3 times;
B, reconditioning vertical difference: on cylindrical grinder, hold roller (4) one end and as positioning datum with magnetic pole (2), taking cylindrical middle part as supporting (3), adopt and move back and forth mill external diameter; To improve perpendicularity, reduce difference between both ends, improve cylindricity;
C, fine grinding end face: on horizontal surface grinder, hold roller (4) one end faces with disk (5) and locate, and supporting (3) external diameter makes it around self axis rotation, emery wheel (1) traverse feed reconditioning other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303320.4A CN104084850A (en) | 2014-06-30 | 2014-06-30 | Grinding process for large cylindrical roller end faces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303320.4A CN104084850A (en) | 2014-06-30 | 2014-06-30 | Grinding process for large cylindrical roller end faces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104084850A true CN104084850A (en) | 2014-10-08 |
Family
ID=51632667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410303320.4A Pending CN104084850A (en) | 2014-06-30 | 2014-06-30 | Grinding process for large cylindrical roller end faces |
Country Status (1)
| Country | Link |
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| CN (1) | CN104084850A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196121A (en) * | 2015-10-27 | 2015-12-30 | 衡阳纺织机械有限公司 | Method for machining end faces of connecting shaft bearing outer ring |
| CN106002499A (en) * | 2016-08-08 | 2016-10-12 | 洛阳轴研科技股份有限公司 | Method for grinding outside diameters of flexible bearing rings |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5930653A (en) * | 1982-08-04 | 1984-02-18 | Koyo Seiko Co Ltd | Manufacture of cylindrical roller |
| JPH09285949A (en) * | 1996-04-19 | 1997-11-04 | Toshiba Emi Ltd | Roller polishing device |
| CN1448247A (en) * | 2002-04-03 | 2003-10-15 | 日本精工株式会社 | Centerless grinding apparatus and centerless grinding process |
| RU2401189C2 (en) * | 2008-10-16 | 2010-10-10 | Открытое акционерное общество "Завод авиационных подшипников" | Device for simultaneous grinding of chamfers on roller bearing rollers |
| CN101972957A (en) * | 2010-06-13 | 2011-02-16 | 洛阳Lyc轴承有限公司 | Method for performing precision grinding to end surface of super-large cylindrical roller |
| CN102275108A (en) * | 2011-08-25 | 2011-12-14 | 濮阳贝英数控机械设备有限公司 | Grinding device and grinding method for double end faces of cylindrical roller |
-
2014
- 2014-06-30 CN CN201410303320.4A patent/CN104084850A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5930653A (en) * | 1982-08-04 | 1984-02-18 | Koyo Seiko Co Ltd | Manufacture of cylindrical roller |
| JPH09285949A (en) * | 1996-04-19 | 1997-11-04 | Toshiba Emi Ltd | Roller polishing device |
| CN1448247A (en) * | 2002-04-03 | 2003-10-15 | 日本精工株式会社 | Centerless grinding apparatus and centerless grinding process |
| RU2401189C2 (en) * | 2008-10-16 | 2010-10-10 | Открытое акционерное общество "Завод авиационных подшипников" | Device for simultaneous grinding of chamfers on roller bearing rollers |
| CN101972957A (en) * | 2010-06-13 | 2011-02-16 | 洛阳Lyc轴承有限公司 | Method for performing precision grinding to end surface of super-large cylindrical roller |
| CN102275108A (en) * | 2011-08-25 | 2011-12-14 | 濮阳贝英数控机械设备有限公司 | Grinding device and grinding method for double end faces of cylindrical roller |
Non-Patent Citations (1)
| Title |
|---|
| 李庆，徐长鑫，肖瑞雪: "大型圆柱滚子端面磨削工艺", 《轴承》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196121A (en) * | 2015-10-27 | 2015-12-30 | 衡阳纺织机械有限公司 | Method for machining end faces of connecting shaft bearing outer ring |
| CN106002499A (en) * | 2016-08-08 | 2016-10-12 | 洛阳轴研科技股份有限公司 | Method for grinding outside diameters of flexible bearing rings |
| CN106002499B (en) * | 2016-08-08 | 2017-11-14 | 洛阳轴研科技股份有限公司 | A kind of Ginding process of flexible bearing lasso external diameter |
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Application publication date: 20141008 |