EP3684547B1 - Fertigungsvorrichtung zur fertigung eines gekrümmten verlaufs an mindestens einer stirnfläche einer rolle und verfahren zur fertigung eines gekrümmten verlaufs an der mindestens einen stirnfläche mit der fertigungsvorrichtung - Google Patents

Fertigungsvorrichtung zur fertigung eines gekrümmten verlaufs an mindestens einer stirnfläche einer rolle und verfahren zur fertigung eines gekrümmten verlaufs an der mindestens einen stirnfläche mit der fertigungsvorrichtung Download PDF

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Publication number
EP3684547B1
EP3684547B1 EP18773335.7A EP18773335A EP3684547B1 EP 3684547 B1 EP3684547 B1 EP 3684547B1 EP 18773335 A EP18773335 A EP 18773335A EP 3684547 B1 EP3684547 B1 EP 3684547B1
Authority
EP
European Patent Office
Prior art keywords
grinding
roll
channel
face
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18773335.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3684547A1 (de
Inventor
Alexander Weidner
Horst Gredy
Stephan Woiwode
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP3684547A1 publication Critical patent/EP3684547A1/de
Application granted granted Critical
Publication of EP3684547B1 publication Critical patent/EP3684547B1/de
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/37—Single-purpose machines or devices for grinding rolls, e.g. barrel-shaped rolls
    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/009—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding profiled workpieces using a profiled grinding tool
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/01—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor for combined grinding of surfaces of revolution and of adjacent plane surfaces on work
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
    • B24B5/20—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work involving grooved abrading blocks
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
    • B24B5/22—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding cylindrical surfaces, e.g. on bolts
    • B24B5/225—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding cylindrical surfaces, e.g. on bolts for mass articles

Definitions

  • the invention relates to a manufacturing device for manufacturing a curved profile on at least one end face of a roller.
  • the manufacturing device has a grinding device for grinding the curved course and a holding device for holding the roll between the holding device and the grinding device.
  • the invention also relates to a method for producing a curved course on the at least one end face of the roller using the production device.
  • Rolling bodies with curved surfaces are well known from the prior art.
  • the curved surfaces are often ground with suitable devices in order to provide them with a curved course.
  • the reference describes DE 19 531 965 A1 a rolling element for roller bearings, which has rounded portions at the boundaries between a rolling surface and two end faces of a roller, respectively.
  • a grinding tool is used, which comprises an outer grinding area for grinding the rolling surface, a final grinding area for grinding the end surface, and a rounded grinding area for grinding the rounded area.
  • DE 729 885 C forms the basis for the preamble of claim 1 and discloses methods and devices for the finest finishing of the rounded edges of roller bearings.
  • the object of the invention is to provide a manufacturing device for the cost-effective manufacture of curved end faces of a roller. This object is achieved by a manufacturing device for manufacturing a curved profile on at least one end face of a roller with the features of claim 1 and by a method for manufacturing a curved profile on the at least one end face of the roller with the manufacturing device with the features of claim 8. Preferred or advantageous embodiments of the invention result from the subclaims of the following description and/or the attached figures.
  • a production device is proposed which is designed to produce a curved, in particular crowned, profile on at least one end face of a roller.
  • the roller is preferably designed as a rolling element for a roller bearing.
  • the roller is designed as a cylindrical roller.
  • it can also be a needle roller or barrel roller.
  • the roller has a diameter of 5 millimeters, preferably 6 millimeters and/or up to 8 millimeters.
  • a length of the roller is preferably at least 4 millimeters, in particular at least 20 millimeters, in particular at least 40 millimeters and/or at most 70 millimeters.
  • the at least one end face is preferably arranged axially with respect to an axis of rotation of the roller.
  • the roller has an outer surface that extends radially around the axis of rotation of the roller.
  • the roller has first and second faces that are arranged opposite one another axially of the axis of rotation.
  • the manufacturing device has a grinding device.
  • the grinding device is designed to grind the curved profile on the at least one end face of the roller.
  • the grinding device is designed as a cuboid jaw, in particular with a significantly greater length than height.
  • the manufacturing device includes a holding device.
  • the holding device is designed to hold the roll between the holding device and the grinding device.
  • the holding device is designed as a further block-shaped jaw, the length of which is in particular significantly greater than its height.
  • the grinding device and the holding device preferably have the same dimensions, in particular the same length and/or height.
  • the grinding device and the holding device are preferably formed from a steel alloy.
  • the holding device can be moved linearly relative to the grinding device.
  • the holding device can preferably be moved in the same direction and/or parallel to the grinding device.
  • the production device includes an actuator, for example a linear motor, for the linear drive of the holding device relative to the grinding device.
  • the holding device is driven by the actuator to move linearly, in particular in the same direction and/or parallel to the grinding device.
  • a preferred embodiment of the invention provides that the grinding device is arranged in a stationary manner. It is preferred that the grinding device is integrated into a rolling machine as a grinding machine and is stationarily anchored therein. In particular, the holding device is also integrated in the grinding machine and can be moved linearly there at a defined distance from the grinding device and can be moved in the same direction and/or parallel to it.
  • the roller can be arranged between the grinding device and the holding device, preferably with a form fit.
  • the roller is placed in an interference fit or interference fit between the grinder and the retainer.
  • the grinding device and the holding device contact the roll.
  • the holding device has a holding surface with which it holds the roll and presses against the grinding device so that the roll cannot become detached from it.
  • the holding surface is provided with a coating or a layer of material or a surface structure, such as knurling, which increases the coefficient of friction of the holding surface.
  • a secure hold of the roll between the grinding device and the holding device can be ensured in an advantageous manner. In particular, this can prevent the roller from slipping between the grinding device and the holding device, specifically during and/or during the linear movement of the holding device.
  • the grinding device has a grinding channel with a channel opening.
  • the grinding channel comprises an upper grinding profile and a lower grinding profile.
  • the upper and lower grinding profiles preferably run along the channel opening and/or frame these along the grinding channel.
  • the upper grinding profile is designed for grinding the curved course on the first face of the roller.
  • the lower grinding profile is designed for grinding the curved shape of the second end face of the roller.
  • the upper and lower grinding profiles have an abrasion-resistant coating, for example made of boron nitrite (CBN), in order to avoid or delay wear during and/or during grinding.
  • the grinding channel has a channel wall that is arranged opposite to the channel opening.
  • the roller can be arranged at least in sections in the grinding channel.
  • the production device preferably comprises a feed device which is designed to feed the roll to the grinding device, in particular into the grinding channel.
  • the feeder places the roll in a channel access that forms an inlet to the grinding channel.
  • the feeding device can be, for example, a gripper of a robot arm.
  • the roller is arranged in the grinding channel, in particular in the channel access, the axis of rotation of the roller extends according to the invention parallel to the channel wall.
  • the roller can be arranged in the grinding channel, in particular in the channel access, such that the first face contacts the upper grinding profile of the grinding channel and/or the second face contacts the lower grinding profile of the grinding channel.
  • the holding surface of the holding device is in contact with the outer surface of the roller when the roller is arranged in the grinding channel, in particular in the channel access.
  • the holding device thereby holds or presses the roller in the direction of the grinding channel and positions the end faces on the respective grinding profiles.
  • the roller can be driven by the linear movement of the holding device, directed relative to the grinding device, to roll on the grinding device and to run through the grinding channel in a throughput direction.
  • the holding device preferably drives the roller arranged in the grinding channel through its linear movement to move along the grinding channel rotating about its axis of rotation.
  • the roll runs through the grinding channel from the channel entrance to a channel end, at which the finished roll is preferably ejected. The contact of the end faces with the respective grinding profile results in the grinding of the curved course of the first and second end faces during and/or during the rotation of the roller and the passage through the grinding channel.
  • the upper grinding profile and the lower grinding profile are arranged obliquely, at an angle and/or in a radius or radius progression to the channel wall.
  • the curved course can be produced on the at least one end face of the roller, in particular on the first end face by the upper grinding profile and on the second end face by the lower one during and/or while passing through the grinding channel.
  • a special surface topography has arisen on the finished roll, which can only be produced by the manufacturing device according to the invention and/or by the method according to the invention.
  • the grinding channel is tapered in the direction of passage of the roller.
  • the grinding channel preferably narrows in the throughput direction.
  • the access to the canal has a greater width than the end of the canal. Since the grinding of the at least one end face during and/or during the passage of the roller through the grinding channel results in an axial length adjustment of the roller, the tapering and/or increasing narrowing of the grinding channel is preferred and advantageous in order to ensure the continuous contact of the at least one end face with the corresponding grinding profile of the grinding channel.
  • the production device can be used to provide effective and cost-effective production, in particular mass production, of curved end faces on rollers.
  • the number of cycles for finished rolls can advantageously be increased compared to conventional production devices.
  • a further object of the invention is a method for producing a curved course on at least one end face of a roller with the production device according to the previous description and/or according to claims 1 to 7.
  • the holding device is driven in particular by the actuator to to move linearly relative to the grinder.
  • the roller is arranged in the grinding channel so that the lateral surface rests against the holding device, so that the first end face contacts the upper grinding profile and the second end face contacts the lower grinding profile.
  • the roller is preferably driven by a linear movement of the holding device relative to the grinding device to run through the first and second grinding channel, in particular in a rotating manner.
  • the curved profile on the first face is ground by the upper grinding profile and the curved profile on the second face is ground by the lower grinding profile, while the roller rotates through the grinding channel.
  • figure 1 1 shows a production device 1 which is designed for the production, preferably for cost-effective mass production, of a curved course on at least one end face 3a, 3b of a roller 2.
  • the production device 1 comprises a grinding device 4 and a holding device 5.
  • the roller 2 is arranged between the grinding device 4 and the holding device 5, in particular held between them in a form-fitting manner, in particular clamped.
  • the roller 2 is designed as a rolling body, in particular as a cylindrical roller, as a needle roller or barrel roller, for a roller bearing. It has a diameter of, for example, 5 millimeters, preferably 6 millimeters and/or up to 8 millimeters. A length of the roller 2 is preferably at least 4 millimeters, in particular at least 20 millimeters, in particular at least 40 millimeters and/or at most 70 millimeters.
  • the roller 2 has an outer surface 3c which is arranged radially with respect to an axis of rotation X of the roller 2 .
  • the roller 2 comprises a first and a second end face 3a, 3b which are arranged axially opposite one another.
  • the grinding device 4 and the holding device 5 of the production device 1 are as in figure 1 shown as cuboid steel jaws. You are in one Rolling machine can be integrated as a grinding machine. Another machine tool can also be used. In the grinding machine, the grinding device 4 is fixed in a stationary and immovable manner. The holding device 5 can be moved linearly relative to the grinding device 4 .
  • the production device 1 includes an actuator (not shown), for example a linear motor, which can move the holding device 5 linearly.
  • the grinding device 4 has a grinding channel 6 which includes a channel opening, a channel wall 7 and an upper grinding profile 8a and a lower grinding profile 8b.
  • the upper and lower grinding profiles 8a, 8b extend along the channel opening, which is opposite the channel wall 7.
  • the upper grinding profile 8a is designed to grind the first end face 3a of the roller 2, so that the curved, in particular crowned, profile is produced on it.
  • the lower grinding profile 8b is designed to grind the second end face 3b of the roller 2, so that the curved, in particular crowned, profile is also formed here.
  • the holding device 5 has a holding surface 9 for holding the roller 2 in the grinding channel 6 .
  • the holding surface 9 is optionally provided with a coating that increases the coefficient of friction, so that the roller 2 is held securely between the grinding device 4 and the holding device 5 and the roller 2 can be prevented from slipping off.
  • figure 2 a plan view and a side view of the grinding channel 6 of the grinding device 4 are shown.
  • figure 3 shows a detailed representation of the roller 2, which is arranged in sections in the grinding channel 6.
  • the roller 2 is arranged in sections in the grinding channel 6 that the axis of rotation X is perpendicular, plumb or vertical and rectified to the Channel wall 7 extends.
  • the roller 2 makes contact with the grinding profiles 8a, 8b with the two end faces 3a, 3b. through the in figure 1 shown holding device 5, the roller 2 is held in this position, in particular pressed into the grinding channel 2.
  • the holding device 5 carries out the linear movement L, activated by the actuator.
  • the roller 2 is rotated about the axis of rotation X in a direction of passage D, so that the roller 2 moves in the direction of passage D through the grinding channel 6 .
  • the curved course on the first face 3a of the roller 2 is ground by the upper grinding profile 8a and the curved course on the second face 3b is ground by the lower grinding profile 8b.
  • figure 4 shows a top view of a channel access 10 of the grinding channel 6 and a side view of the channel access 10.
  • the roller 2 is inserted through the channel access 10 into the grinding channel 6, so that the end faces 3a, 3b are then provided with the curved profiles by the rotational movement in the throughput direction D can.
  • the manufacturing device 1 1
  • a feeding device not shown, which is designed, for example, as a robot arm and/or gripper. After running through the grinding channel 6 completely, the roll 2 is ejected at one channel end 12 and transported away, for example, by a conveyor belt.
  • the channel access 10 has a greater width W than the grinding channel 6 in the further course in the throughput direction D.
  • the grinding channel 6 tapers or narrows in the throughput direction D. This is necessary because the roller 2 when inserted into the channel access 10 and before the grinding has a greater height H in the axial direction than during or after grinding in the grinding channel 6.
  • the height H ( 3 ) of the roller 2 during and/or during the grinding of the curved course on the end faces 3a, 3b, so that the grinding channel 6 is adapted thereto by the taper and/or narrowing.
  • the upper and lower grinding profile 8a, 8b are provided with an abrasion-resistant coating, for example made of boron nitrite (CBN), so that a service life is increased and a deadening can be delayed.
  • the grinding profiles 8a, 8b run transversely, at an angle or in a radius or radii to the channel wall 7 (see also Fig.3 ).
  • the grinding profiles 8a, 8b are formed by a gradation and/or a radius or radius profile 11 which is/are designed in such a way that the curved profile of the end faces 3a, 3b can be ground.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Rolling Contact Bearings (AREA)
EP18773335.7A 2017-09-21 2018-09-05 Fertigungsvorrichtung zur fertigung eines gekrümmten verlaufs an mindestens einer stirnfläche einer rolle und verfahren zur fertigung eines gekrümmten verlaufs an der mindestens einen stirnfläche mit der fertigungsvorrichtung Active EP3684547B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017121861.0A DE102017121861A1 (de) 2017-09-21 2017-09-21 Fertigungsvorrichtung zur Fertigung eines gekrümmten Verlaufs an mindestens einer Stirnfläche einer Rolle und Verfahren zur Fertigung eines gekrümmten Verlaufs an der mindestens einen Stirnfläche mit der Fertigungsvorrichtung
PCT/DE2018/100754 WO2019057238A1 (de) 2017-09-21 2018-09-05 Fertigungsvorrichtung zur fertigung eines gekrümmten verlaufs an mindestens einer stirnfläche einer rolle und verfahren zur fertigung eines gekrümmten verlaufs an der mindestens einen stirnfläche mit der fertigungsvorrichtung

Publications (2)

Publication Number Publication Date
EP3684547A1 EP3684547A1 (de) 2020-07-29
EP3684547B1 true EP3684547B1 (de) 2023-06-14

Family

ID=63667663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18773335.7A Active EP3684547B1 (de) 2017-09-21 2018-09-05 Fertigungsvorrichtung zur fertigung eines gekrümmten verlaufs an mindestens einer stirnfläche einer rolle und verfahren zur fertigung eines gekrümmten verlaufs an der mindestens einen stirnfläche mit der fertigungsvorrichtung

Country Status (10)

Country Link
US (1) US12023780B2 (pt)
EP (1) EP3684547B1 (pt)
JP (1) JP6985495B2 (pt)
KR (1) KR102608764B1 (pt)
CN (1) CN111093896B (pt)
BR (1) BR112020004533A2 (pt)
DE (1) DE102017121861A1 (pt)
HU (1) HUE063138T2 (pt)
PL (1) PL3684547T3 (pt)
WO (1) WO2019057238A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017121861A1 (de) 2017-09-21 2019-03-21 Schaeffler Technologies AG & Co. KG Fertigungsvorrichtung zur Fertigung eines gekrümmten Verlaufs an mindestens einer Stirnfläche einer Rolle und Verfahren zur Fertigung eines gekrümmten Verlaufs an der mindestens einen Stirnfläche mit der Fertigungsvorrichtung

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1719965A (en) * 1926-10-12 1929-07-09 Bruhl Paul Grinding machine
DE729885C (de) * 1940-06-18 1943-01-04 Hirth Motoren G M B H Verfahren und Vorrichtung zur feinsten Fertigbearbeitung der Kantenabrundungen bei Waelzlagerrollen
US2908119A (en) * 1958-08-15 1959-10-13 Frank M Dudgeon Tool for externally truing and honing cylindrical workpieces
US3910275A (en) 1969-05-15 1975-10-07 Victor Stephen Babey Artificial insemination device
US3988861A (en) * 1973-08-10 1976-11-02 Thomas Scott Brawley Lapping or grinding apparatus and method
US3913275A (en) * 1973-08-10 1975-10-21 Thomas Scott Brawley Lapping, pressure grinding and flash roll apparatus and method
JPS53135436U (pt) 1977-04-01 1978-10-26
JPH0276635A (ja) 1988-09-10 1990-03-16 Sanwa Niidorubearingu Kk シャフト端ｒ面取り連続加工方法及び装置
CN1032630C (zh) * 1991-05-24 1996-08-28 襄阳轴承厂 一种对圆柱和圆锥滚子形成凸度的磨削方法
GB2276213B (en) 1993-03-18 1996-09-25 Cooper Roller Bearings Company Improvements in roller bearings
US5752775A (en) 1994-08-31 1998-05-19 Ntn Corporation Roller bearing
JPH08215783A (ja) 1995-02-17 1996-08-27 Kofu Seibiyou Kk 転造加工方法
DE19629528A1 (de) * 1995-07-21 1997-01-30 Nec Corp Verfahren und Vorrichtung zum Herstellen eines konvexen Endes eines Werkstücks
DE102005061179A1 (de) 2005-12-21 2007-06-28 Schaeffler Kg Wälzlager und Verfahren zu dessen Herstellung
JP5522569B2 (ja) * 2010-01-26 2014-06-18 Ｎｔｎ株式会社 ころの製造方法
TWI552830B (zh) * 2012-11-02 2016-10-11 鴻海精密工業股份有限公司 拋光輪及拋光裝置
DE102017121861A1 (de) 2017-09-21 2019-03-21 Schaeffler Technologies AG & Co. KG Fertigungsvorrichtung zur Fertigung eines gekrümmten Verlaufs an mindestens einer Stirnfläche einer Rolle und Verfahren zur Fertigung eines gekrümmten Verlaufs an der mindestens einen Stirnfläche mit der Fertigungsvorrichtung

Also Published As

Publication number Publication date
KR20200058396A (ko) 2020-05-27
DE102017121861A1 (de) 2019-03-21
PL3684547T3 (pl) 2023-09-25
KR102608764B1 (ko) 2023-12-04
EP3684547A1 (de) 2020-07-29
US20200262021A1 (en) 2020-08-20
JP2020528833A (ja) 2020-10-01
CN111093896A (zh) 2020-05-01
US12023780B2 (en) 2024-07-02
WO2019057238A1 (de) 2019-03-28
BR112020004533A2 (pt) 2020-09-08
CN111093896B (zh) 2022-06-07
HUE063138T2 (hu) 2024-01-28
JP6985495B2 (ja) 2021-12-22

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