WO2010069817A1 - Verfahren zur herstellung der wälzkörper eines kugelrollenlagers - Google Patents
Verfahren zur herstellung der wälzkörper eines kugelrollenlagers Download PDFInfo
- Publication number
- WO2010069817A1 WO2010069817A1 PCT/EP2009/066591 EP2009066591W WO2010069817A1 WO 2010069817 A1 WO2010069817 A1 WO 2010069817A1 EP 2009066591 W EP2009066591 W EP 2009066591W WO 2010069817 A1 WO2010069817 A1 WO 2010069817A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ball
- grinding
- rollers
- ball rollers
- ball roller
- Prior art date
Links
Classifications
-
- 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
- F16C33/34—Rollers; Needles
- F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
- B21J1/025—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough affecting grain orientation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/02—Making machine elements balls, rolls, or rollers, e.g. for bearings
-
- 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
- B24B11/00—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor
- B24B11/02—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls
- B24B11/04—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls involving grinding wheels
- B24B11/06—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls involving grinding wheels acting by the front faces, e.g. of plane, grooved or bevelled shape
-
- 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
-
- 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
- Y10T29/49694—Ball making
Definitions
- the invention relates to a method for producing the rolling elements of a spherical roller bearing whose rolling elements are designed as ball rollers.
- Ball roller bearings are rolling bearings with special, designed as ball rollers rolling elements, starting from a ball base each have two flattened from this basic ball shape, arranged parallel to each other side surfaces, between each of which the running surfaces of the ball rollers are arranged.
- Such ball roller bearings have long been known in various embodiments, for example by DE 311 317 A or DE 42 34 195 A1 and are characterized mainly by the fact that they by the special design of their rolling elements compared to identical type ball bearings either with a higher number Rolling bodies are filled and thus have a higher load capacity (upgrading) or can be designed with the same load capacity and thereby require a much smaller radial space (downsizing).
- the rolling elements are designed as ball rollers, which in addition each have a circular Stirnmulde as a lubricant reservoir on their side surfaces.
- the production of the ball rollers is carried out such that initially a plurality of Rohabitesen are cut in a defined length of a round wire with a defined diameter, which are then converted by compression molding in the form of a die tool to ball rolling blanks with frontal molds.
- the running surfaces ball rollers are ground round, wherein the grinding is carried out to increase the accuracy together with conventional bearing balls of the same size, previously in a preferred ratio of Size occurs, which were previously mixed together in a preferred ratio of 25% ball rollers to 75% bearing balls.
- the invention is therefore based on the object, a To design a method for producing the rolling elements of a ball roller bearing with which avoided on the one hand during molding of the ball roller blanks the emergence of Saturnringen the career transition from one ball roller half to another ball roller half and the associated adverse material fiber course below the raceways of the ball rollers and on the other hand when grinding the Ball rollers, the falling together of the ball rollers within the grinding grooves in the grinding wheels by gravity and the associated impact injuries to the running surfaces of the ball rollers can be excluded and which is characterized by high lot sizes per grinding process and low production costs.
- this object is achieved in a method according to the Oberbeg- riff of claim 1 such that the cut Rohhabitese have a volume through which in their compression molding on the one hand an approximately tangential career transition from one ball roller half to the other ball roller half and the other below the running surfaces of the Ball rollers parallel or approximately parallel to these running surfaces extending Materialfa- fibers formed, and that the grinding of the ball roller blanks takes place on their final dimensions in a fed exclusively with ball rolling blanks of the same size horizontal ball grinding machine.
- the invention is thus based on the finding that it is possible by exact cutting of the Roß4.000e of the round wire or by the associated precise determination of the volume Rohabschnitte, during compression molding of the ball rolling blanks the formation of Saturn rings on the raceway transition from a ball roller half to another ball roller half To effectively avoid and thus produce an advantageous for the component strength and resilience of the ball rollers parallel to their careers aligned material fiber profile below the raceways of the ball rollers.
- the cutting of the raw sections of a round wire coil is made, which consists of a continuous casting wire of 100 Cr 6.
- This type of steel is usually also used in the production of bearing balls or other rolling elements and is characterized in particular by good formability, good hardness properties and high strength and elasticity.
- the inventive method is also characterized by the fact that after the compression molding of the ball roller blanks still a further washing of the ball roller blanks takes place to again here to eliminate the impurities formed during compression molding. Thereafter, the ball rollers Blanks filled for the first time in the horizontal ball grinding machine and ground in the still heat-treated so soft state to an accuracy that is comparable to the precision G 30 for bearing balls. At this soft grinding then closes the heat treatment of the ball rollers, which consists in a known manner from a through-hardening, quenching and tempering at usual temperatures for bearing balls. The resulting scaling is then finally eliminated by a drum or Gleitschleiflui in which the ball rollers are circulated together with stone grains and water in a drum.
- the grinding of the ball rollers is carried out to their final dimensions in two steps.
- the ball rollers are filled a second time in a horizontal ball grinding machine and lapped with an accuracy that is comparable to the accuracy G 20 for bearing balls, while in a subsequent second step the ball rollers in a further horizontal Kugelschleifma machine are filled, in which then the Fertigläppen the ball rollers with a comparable accuracy with bearing balls G 10.
- the Hohzontal ball grinding machine for carrying out the described grinding processes consists essentially of a horizontally arranged fixed grinding wheel and a parallel thereto arranged rotating grinding wheel, wherein in both grinding wheels each opposite an equal number of coaxial arranged grinding grooves is arranged, between which the ball rollers are arranged chaotically to each other and whose running surfaces are ground round.
- a peculiarity of this Hohzontal ball grinding machine is that the grinding grooves in the grinding wheels have a groove depth which corresponds to 2 to 3 times the flattening of the ball rollers from the diameter of their ball basic shape thus ensuring the entrainment of the ball rollers or their movement between the grinding wheels in each of their possible positions.
- the movement of the ball rollers is also supported by a liquid abrasive, which at the same time causes cooling and cleaning of the grinding wheels of the ball rollers in progress.
- the final step in the process is a final inspection of the ball rollers or sorting of the ball rollers according to different accuracy qualities, by rolling them over slotted raceways with collecting containers underneath.
- FIG. 1 shows an enlarged sectional view of a ball roller produced according to the invention
- FIG. 2 shows an enlarged side view of a ball roller produced according to the invention
- FIG. 3 shows a rough section of a ball roller produced according to the invention before the compression molding
- FIG. 4 shows a ball roller blank of a manufactured according to the invention
- FIG. 5 shows an enlargement of the detail X on the ball roller
- FIG. 6 shows an enlargement of the detail X according to FIG. 4 at one
- FIG. 7 is an enlarged sectional view of the grinding wheels of a Hohzontal-Kugelrollenschleifmaschine. Detailed description of the drawings
- the preparation of these ball rollers 1 is carried out according to the inventive method such that initially a plurality of Rohabitesen 7 are cut in a defined length of a round wire of grade 100 Cr 6 formed round wire with a defined diameter, which then washed to eliminate impurities in the cutting presses become. Subsequently, the blank sections, as shown in FIGS. 3 and 4, are shaped by forming presses in the form 9 of a swaging tool 10 to form ball-roller blanks 8 with end depressions 4, 5 and washed once more, again to form the parts produced during the compression molding Eliminate impurities.
- the ball-roller blanks 8 are then filled for the first time in a Hohzontal-Kugelschleifmaschine 13 charged exclusively with ball-roller blanks 8 of the same size and heated while still warm. untreated, ie soft state ground to an accuracy comparable to the accuracy G 30 for bearing balls. At this soft grinding then joins the heat treatment of the ball rollers 1, which consists in a known manner from a through-hardening, quenching and tempering at usual temperatures for bearing balls. The resulting scaling is then eliminated by a drum or Gleitschleif- process in which the ball rollers 1 are circulated together with stone grains and water in a drum.
- the grinding of the ball-roller blanks 8 is then carried out in two sub-steps to their final dimensions in a Hohzontal-Kugelschleifma- machine 13, which is likewise loaded exclusively with ball-roller blanks 8 of the same size.
- the ball rollers 1 are a second time filled in a horizontal ball grinding machine 13 and lapped with an accuracy that is comparable to the accuracy G 20 for bearing balls, while in a subsequent second increment the ball rollers in a further Hohzontal ball grinding machine 13 are filled, in which then the Fertigläppen the ball rollers 1 with a comparable ball bearing accuracy G 10.
- the Hohzontal ball grinder 13 for performing the described grinding processes consists, as can be seen in Figure 7, essentially of a horizontally disposed fixed grinding wheel 14 and a parallel thereto arranged rotating grinding wheel 15, wherein in both grinding wheels 14, 15 respectively opposite one the same number coaxial with each other arranged grinding grooves 16 is arranged, between which the ball rollers 1 are arranged chaotically to each other and their treads 6 are ground round.
- a peculiarity of this horizontal Kugelschleifma-machine 13 is that the grinding grooves 16 ben in the grinding wheel 14, 15 a groove depth R ⁇ comprise the fold 3 to 2 to the flat A ⁇ of the spherical rollers 1 on the diameter d ⁇ their Ball basic shape corresponds to the entrainment of the ball rollers 1 and their movement between the grinding wheels 14, 15 in each of their possible positions to ge schrangn.
- the advancing of the ball rollers 1 is also supported by an indicated in Figure 7 in the grinding grooves 16 liquid abrasive, which at the same time causes cooling and cleaning of the grinding wheels 14, 15 and the ball rollers 1 in progress.
- a final inspection of the ball rollers 1 or a sorting of the ball rollers 1 according to different accuracy qualities then takes place by being rolled over slotted raceways with collecting containers underneath.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09774661A EP2379247A1 (de) | 2008-12-19 | 2009-12-08 | Verfahren zur herstellung der wälzkörper eines kugelrollenlagers |
US13/132,692 US8615885B2 (en) | 2008-12-19 | 2009-12-08 | Method for producing the rolling elements of a ball roller bearing |
CN200980151354.3A CN102256724B (zh) | 2008-12-19 | 2009-12-08 | 用于制造球滚子轴承的滚动体的方法 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008064154 | 2008-12-19 | ||
DE102008064154.5 | 2008-12-19 | ||
DE102009009254.4 | 2009-02-17 | ||
DE102009009254A DE102009009254A1 (de) | 2008-12-19 | 2009-02-17 | Verfahren zur Herstellung der Wälzkörper einer Kugelrollenlagers |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010069817A1 true WO2010069817A1 (de) | 2010-06-24 |
Family
ID=42220964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/066591 WO2010069817A1 (de) | 2008-12-19 | 2009-12-08 | Verfahren zur herstellung der wälzkörper eines kugelrollenlagers |
Country Status (6)
Country | Link |
---|---|
US (1) | US8615885B2 (de) |
EP (1) | EP2379247A1 (de) |
KR (1) | KR20110102342A (de) |
CN (1) | CN102256724B (de) |
DE (1) | DE102009009254A1 (de) |
WO (1) | WO2010069817A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104097032B (zh) * | 2014-06-26 | 2016-05-11 | 庹汉彪 | 一种轴承滚针成型工艺 |
DE102015207106A1 (de) * | 2015-04-20 | 2016-10-20 | Schaeffler Technologies AG & Co. KG | Verfahren zum Herstellen von Wälzkörpern für Wälzlager |
CN105967141B (zh) * | 2016-05-04 | 2018-08-24 | 合肥工业大学 | 微测球制备与监测装置 |
US10525522B2 (en) * | 2017-07-28 | 2020-01-07 | Nsk Ltd. | Molding device for manufacturing cylindrical rolling body, manufacturing method for cylindrical rolling body, manufacturing method for rolling bearing, manufacturing method for vehicle, and manufacturing method for mechanical apparatus |
CN110303304B (zh) * | 2019-07-23 | 2022-03-15 | 重庆申耀机械工业有限责任公司 | 一种滚柱的加工工艺方法 |
DE102020114006A1 (de) | 2020-05-26 | 2021-12-02 | Schaeffler Technologies AG & Co. KG | Vorrichtung und Verfahren zum Honen von Tonnenrollen |
CN115213742A (zh) * | 2021-04-18 | 2022-10-21 | 无锡市新裕滚针轴承有限公司 | 一种大凸度长滚针多级抛串加工方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2614317A (en) * | 1949-08-19 | 1952-10-21 | Deussen Emil | Method of making metal balls |
US3984945A (en) * | 1972-01-18 | 1976-10-12 | Sebastian Messerschmidt Spezial-Maschinenfabrik | Device for lapping balls in continuous operation |
DE4336441A1 (de) * | 1993-10-26 | 1995-04-27 | Herbert Pickelmann | Läppmaschine für Kugeln |
WO1996033047A1 (de) * | 1995-04-19 | 1996-10-24 | MESSERSCHMIDT, Jürgen | Läppmaschine |
JP2001259981A (ja) * | 2000-03-22 | 2001-09-25 | Nsk Ltd | 球体研磨装置の環状溝成形方法 |
US20020141677A1 (en) * | 2001-03-12 | 2002-10-03 | Nsk Ltd. | Rolling elements for rolling bearing, method of producing the same, and rolling bearing |
EP1270142A2 (de) * | 2001-06-28 | 2003-01-02 | Koyo Seiko Co., Ltd. | Verfahren zur Herstellung von Stahlkugeln für Wälzlager |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD56430A (de) * | 1900-01-01 | |||
DE56430C (de) | k. FRONHÖFER, Hauptmann z. D., in Schwerin i. m | Verschlufsvorrichtung für Patronentaschen mit übereinander liegenden Patronen | ||
DE311317C (de) | ||||
US665905A (en) * | 1900-06-15 | 1901-01-15 | Steel Ball Company | Art of manufacturing steel balls for ball-bearings. |
US1701736A (en) * | 1922-12-13 | 1929-02-12 | Timken Roller Bearing Co | Manufacture of rollers for roller bearings |
US1784463A (en) * | 1930-03-05 | 1930-12-09 | Budd G Nice | Process of making cylindrical rollers |
US2313876A (en) * | 1940-06-18 | 1943-03-16 | Westinghouse Electric & Mfg Co | Method of making balls |
US3206828A (en) * | 1963-02-16 | 1965-09-21 | Taiyu Shoji Kk | Method of making balls |
JPH0719248A (ja) * | 1993-06-29 | 1995-01-20 | Nippon Seiko Kk | 転がり軸受 |
DE4334195A1 (de) | 1993-10-07 | 1994-03-24 | Geuer Mann Ernst | Radial-Wälzlager mit Kugelscheiben |
JP3771007B2 (ja) * | 1997-07-01 | 2006-04-26 | 株式会社ツバキ・ナカシマ | 玉軸受用鋼球の表面硬化処理方法及びその装置 |
DE60327964D1 (de) * | 2002-04-11 | 2009-07-30 | Nsk Ltd | Linearführungsvorrichtung |
DE102005014556A1 (de) | 2005-03-31 | 2006-10-05 | Schaeffler Kg | Radialwälzlager, insbesondere einreihiges Rillenkugellager |
GB0719456D0 (en) * | 2007-10-04 | 2007-11-14 | Skf Ab | Rolling element or ring formed from a bearing steel |
-
2009
- 2009-02-17 DE DE102009009254A patent/DE102009009254A1/de not_active Withdrawn
- 2009-12-08 CN CN200980151354.3A patent/CN102256724B/zh not_active Expired - Fee Related
- 2009-12-08 WO PCT/EP2009/066591 patent/WO2010069817A1/de active Application Filing
- 2009-12-08 KR KR1020117013906A patent/KR20110102342A/ko not_active Application Discontinuation
- 2009-12-08 EP EP09774661A patent/EP2379247A1/de not_active Withdrawn
- 2009-12-08 US US13/132,692 patent/US8615885B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2614317A (en) * | 1949-08-19 | 1952-10-21 | Deussen Emil | Method of making metal balls |
US3984945A (en) * | 1972-01-18 | 1976-10-12 | Sebastian Messerschmidt Spezial-Maschinenfabrik | Device for lapping balls in continuous operation |
DE4336441A1 (de) * | 1993-10-26 | 1995-04-27 | Herbert Pickelmann | Läppmaschine für Kugeln |
WO1996033047A1 (de) * | 1995-04-19 | 1996-10-24 | MESSERSCHMIDT, Jürgen | Läppmaschine |
JP2001259981A (ja) * | 2000-03-22 | 2001-09-25 | Nsk Ltd | 球体研磨装置の環状溝成形方法 |
US20020141677A1 (en) * | 2001-03-12 | 2002-10-03 | Nsk Ltd. | Rolling elements for rolling bearing, method of producing the same, and rolling bearing |
EP1270142A2 (de) * | 2001-06-28 | 2003-01-02 | Koyo Seiko Co., Ltd. | Verfahren zur Herstellung von Stahlkugeln für Wälzlager |
Also Published As
Publication number | Publication date |
---|---|
US20110232094A1 (en) | 2011-09-29 |
EP2379247A1 (de) | 2011-10-26 |
KR20110102342A (ko) | 2011-09-16 |
US8615885B2 (en) | 2013-12-31 |
CN102256724A (zh) | 2011-11-23 |
CN102256724B (zh) | 2014-12-31 |
DE102009009254A1 (de) | 2010-07-01 |
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