EP3684547B1 - Manufacturing apparatus for producing a curved contour on at least one end face of a roll and method for producing a curved contour on the at least one end face with the manufacturing apparatus - Google Patents

Manufacturing apparatus for producing a curved contour on at least one end face of a roll and method for producing a curved contour on the at least one end face with the manufacturing apparatus 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
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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
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German (de)
French (fr)
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EP3684547A1 (en
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
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Schaeffler Technologies AG and Co KG
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Publication of EP3684547A1 publication Critical patent/EP3684547A1/en
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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)
  • Rolling Contact Bearings (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Description

Die Erfindung betrifft eine Fertigungsvorrichtung zur Fertigung eines gekrümmten Verlaufs an mindestens einer Stirnfläche einer Rolle. Die Fertigungsvorrichtung weist eine Schleifeinrichtung zum Schleifen des gekrümmten Verlaufs und eine Halteeinrichtung zum Halten der Rolle zwischen der Halteeinrichtung und der Schleifeinrichtung auf. Die Erfindung betrifft auch ein Verfahren zur Fertigung eines gekrümmten Verlaufs an der mindestens einen Stirnfläche der Rolle mit der Fertigungsvorrichtung.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.

Wälzkörper mit gekrümmten Flächen sind aus dem Stand der Technik hinreichend bekannt. Oftmals werden die gekrümmten Flächen mit geeigneten Vorrichtungen geschliffen, um sie mit einem gekrümmten Verlauf zu versehen.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.

Beispielsweise beschreibt die Druckschrift DE 19 531 965 A1 einen Wälzkörper für Rollenlager, der an den Grenzen zwischen einer Rollfläche und zweier Endflächen einer Rolle jeweils abgerundete Bereiche aufweist. Hierfür wird ein Schleifwerkzeug verwendet, das einen äußeren Schleifbereich zum Schleifen der Rollfläche, eine Endschleifbereich zum Schleifen der Endfläche und einen gerundeten Schleifbereich zum Schleifen des abgerundeten Bereichs umfasst. DE 729 885 C bildet die Basis für den Oberbegriff von Anspruch 1 und offenbart Verfahren und Vorrichtungen zur feinsten Fertigbearbeitung der Kantenabrundungen bei Wälzlagerrollen.For example, 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. For this, 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.

Der Erfindung liegt die Aufgabe zugrunde, eine Fertigungsvorrichtung zur kosteneffektiven Fertigung von gekrümmten Stirnflächen einer Rolle bereitzustellen. Diese Aufgabe wird durch eine Fertigungsvorrichtung zur Fertigung eines gekrümmten Verlaufs an mindestens einer Stirnfläche einer Rolle mit den Merkmalen des Anspruchs 1 und durch ein Verfahren zur Fertigung eines gekrümmten Verlaufs an der mindestens einen Stirnfläche der Rolle mit der Fertigungsvorrichtung mit den Merkmalen des Anspruchs 8 gelöst. Bevorzugte oder vorteilhafte Ausführungsformen der Erfindung ergeben sich aus den Unteransprüchen der nachfolgenden Beschreibung und/oder den beigefügten Figuren.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.

Es wird eine Fertigungsvorrichtung vorgeschlagen, die zur Fertigung eines gekrümmten, insbesondere balligen Verlaufs an mindestens einer Stirnfläche einer Rolle ausgebildet ist. Vorzugsweise ist die Rolle als ein Wälzkörper für ein Wälzlager ausgebildet. Beispielsweise ist die Rolle als eine Zylinderrolle ausgebildet. Sie kann aber auch eine Nadelrolle oder Tonnenrolle sein. Beispielsweise weist die Rolle einen Durchmesser von 5 Millimeter, vorzugsweise von 6 Millimeter und/oder von bis zu 8 Millimeter auf. Eine Länge der Rolle beträgt vorzugsweise mindestens 4 Millimeter, insbesondere mindestens 20 Millimeter, im Speziellen mindestens 40 Millimeter und/oder maximal 70 Millimeter.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. For example, the roller is designed as a cylindrical roller. However, it can also be a needle roller or barrel roller. For example, 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.

Vorzugsweise ist die mindestens eine Stirnfläche axial zu einer Drehachse der Rolle angeordnet. Erfindungsgemäß weist die Rolle eine Mantelfläche auf, die sich radial um die Drehachse der Rolle erstreckt. Im Speziellen weist die Rolle eine erste und zweite Stirnfläche auf, die axial zu der Drehachse gegenüberliegend zueinander angeordnet sind.The at least one end face is preferably arranged axially with respect to an axis of rotation of the roller. According to the invention, the roller has an outer surface that extends radially around the axis of rotation of the roller. In particular, the roller has first and second faces that are arranged opposite one another axially of the axis of rotation.

Die Fertigungsvorrichtung weist eine Schleifeinrichtung auf. Die Schleifeinrichtung ist dazu ausgebildet, den gekrümmten Verlauf an der mindestens einen Stirnfläche der Rolle zu schleifen. Beispielsweise ist die Schleifeinrichtung als ein quaderförmiger Backen, insbesondere mit einer deutlich größeren Länge als Höhe ausgebildet.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. For example, the grinding device is designed as a cuboid jaw, in particular with a significantly greater length than height.

Die Fertigungsvorrichtung umfasst eine Halteeinrichtung. Die Halteeinrichtung ist dazu ausgebildet, die Rolle zwischen der Halteeinrichtung und der Schleifeinrichtung zu halten. Zum Beispiel ist die Halteeinrichtung als ein weiterer quaderförmiger Backen ausgebildet, dessen Länge insbesondere deutlich größer ist als dessen Höhe ist. Bevorzugt weisen die Schleifeinrichtung und die Halteeinrichtung gleiche Abmaße, insbesondere eine gleiche Länge und/oder Höhe, auf. Bevorzugt sind die Schleifeinrichtung und die Halteeinrichtung aus einer Stahllegierung gebildet.The manufacturing device includes a holding device. The holding device is designed to hold the roll between the holding device and the grinding device. For example, 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.

Erfindungsgemäß ist die Halteeinrichtung relativ zu der Schleifeinrichtung linear beweglich. Vorzugsweise ist die Halteeinrichtung gleichgerichtet und/oder parallel zu der Schleifeinrichtung bewegbar. Insbesondere umfasst die Fertigungsvorrichtung einen Aktor, zum Beispiel einen Linearmotor, zum linearen Antrieb der Halteeinrichtung relativ zu der Schleifeinrichtung. Im Speziellen wird die Halteeirichtung durch den Aktor dazu angetrieben, sich linear, insbesondere gleichgerichtet und/oder parallel zu der Schleifeinrichtung zu bewegen.According to the invention, 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. In particular, the production device includes an actuator, for example a linear motor, for the linear drive of the holding device relative to the grinding device. In particular, the holding device is driven by the actuator to move linearly, in particular in the same direction and/or parallel to the grinding device.

Eine bevorzugte Ausgestaltung der Erfindung sieht vor, dass die Schleifeinrichtung ortsfest angeordnet ist. Bevorzugt ist, dass die Schleifeinrichtung in einer Walzmaschine als Schleifmaschine integriert und darin ortsfest verankert ist. Insbesondere ist auch die Halteeinrichtung in der Schleifmaschine integriert und dort linear beweglich in einem definierten Abstand zu der Schleifeinrichtung und gleichgerichtet und/oder parallel zu dieser bewegbar.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.

In einer bevorzugten Ausführungsform der Erfindung ist die Rolle zwischen der Schleifeinrichtung und der Halteeinrichtung bevorzugt formschlüssig anordbar. Optional ist die Rolle in einer Übergangspassung oder Presspassung zwischen der Schleifeinrichtung und der Halteeinrichtung angeordnet. Vorzugsweise kontaktieren die Schleifeinrichtung und die Halteeinrichtung die Rolle. Insbesondere weist die Halteeinrichtung eine Haltefläche auf, mit der sie die Rolle hält und gegen die Schleifeinrichtung drückt, sodass sich die Rolle nicht von dieser lösen kann. Besonders bevorzugt ist, dass die Haltefläche mit einer Beschichtung oder einer Materiallage oder eine Oberflächenstrukturierung, wie z.B. eine Rändelung, versehen ist, die einen Reibbeiwert der Haltefläche erhöht. Dadurch kann in vorteilhafter Weise ein sicherer Halt der Rolle zwischen der Schleifeinrichtung und der Halteeinrichtung gewährleistet werden. Insbesondere kann dadurch ein Durchrutschen der Rolle zwischen der Schleifeinrichtung und der Halteeinrichtung verhindert werden, im Speziellen bei und/oder während der Linearbewegung der Halteeinrichtung.In a preferred embodiment of the invention, the roller can be arranged between the grinding device and the holding device, preferably with a form fit. Optionally, the roller is placed in an interference fit or interference fit between the grinder and the retainer. Preferably, the grinding device and the holding device contact the roll. In particular, 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. It is particularly preferred that 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. As a result, 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.

Erfindungsgemäß weist die Schleifeinrichtung einen Schleifkanal mit einer Kanalöffnung auf.According to the invention, the grinding device has a grinding channel with a channel opening.

Der Schleifkanal umfasst erfindungsgemäß ein oberes Schleifprofil und ein unteres Schleifprofil. Bevorzugt verlaufen das obere und untere Schleifprofil entlang der Kanalöffnung und/oder Rahmen diese entlang des Schleifkanals ein. Erfindungsgemäß ist das obere Schleifprofil zum Schleifen des gekrümmten Verlaufs an der ersten Stirnfläche der Rolle ausgebildet. Erfindungsgemäß ist das untere Schleifprofil zum Schleifen des gekrümmten Verlaufs der zweiten Stirnfläche der Rolle ausgebildet. Besonders bevorzugt ist, dass das obere und untere Schleifprofil einen abriebfesten Belag, zum Beispiel aus Bornitrit (CBN) aufweist, um eine Abnutzung bei und/oder während des Schleifens zu vermeiden oder hinauszuzögern. Optional weist der Schleifkanal eine Kanalwand auf, die gegenüberliegend zu der Kanalöffnung angeordnet ist.According to the invention, 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. According to the invention, the upper grinding profile is designed for grinding the curved course on the first face of the roller. According to the invention, the lower grinding profile is designed for grinding the curved shape of the second end face of the roller. It is particularly preferred that 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. Optionally, the grinding channel has a channel wall that is arranged opposite to the channel opening.

Eine bevorzugte Ausgestaltung der Erfindung sieht vor, dass die Rolle zumindest abschnittsweise in dem Schleifkanal anordbar ist. Bevorzugt umfasst die Fertigungsvorrichtung hierfür eine Zuführeinrichtung, die zur Zuführung der Rolle zu der Schleifeinrichtung, insbesondere in den Schleifkanal, ausgebildet ist. Optional legt die Zuführeinrichtung die Rolle in einen Kanalzugang, der einen Einlass zu dem Schleifkanal bildet. Bei der Zuführeinrichtung kann es sich z.B. um einen Greifer eines Roboterarms handeln.A preferred embodiment of the invention provides that the roller can be arranged at least in sections in the grinding channel. For this purpose, 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. Optionally, 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.

Wenn die Rolle in dem Schleifkanal, insbesondere in dem Kanalzugang, angeordnet ist, erstreckt sich die Drehachse der Rolle erfindungsgemäß parallel zu der Kanalwand. Insbesondere ist die Rolle so in dem Schleifkanal, insbesondere in dem Kanalzugang, anordbar, dass die erste Stirnfläche das obere Schleifprofil des Schleifkanals kontaktiert und/oder dass die zweite Stirnfläche das untere Schleifprofil des Schleifkanals kontaktiert. Insbesondere liegt die Haltefläche der Halteeinrichtung an der Mantelfläche der Rolle an, wenn die Rolle in dem Schleifkanal, insbesondere in dem Kanalzugang, angeordnet ist. Im Speziellen hält oder drückt die Halteeinrichtung die Rolle dadurch in Richtung des Schleifkanals und positioniert die Stirnflächen an den jeweiligen Schleifprofilen.If 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. In particular, 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. In particular, 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. In particular, 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.

In einer bevorzugten Ausführungsform der Erfindung ist die Rolle durch die relativ zu der Schleifeinrichtung gerichtete Linearbewegung der Halteeinrichtung dazu antreibbar, sich an der Schleifeinrichtung abzuwälzen und den Schleifkanal in einer Durchlaufrichtung zu durchlaufen. Vorzugsweise treibt die Halteeinrichtung die in dem Schleifkanal angeordnete Rolle durch ihre Linearbewegung dazu an, sich um ihre Drehachse rotierend entlang des Schleifkanals fortzubewegen. Insbesondere durchläuft die Rolle den Schleifkanal von dem Kanalzugang bis zu einem Kanalende, an dem bevorzugt ein Auswurf der fertig bearbeiteten Rolle erfolgt. Durch den Kontakt der Stirnflächen mit dem jeweiligen Schleifprofil erfolgt das Schleifen des gekrümmten Verlaufs der ersten und zweiten Stirnfläche bei und/oder während der Rotation der Rolle und des Durchlaufens des Schleifkanals.In a preferred embodiment of the invention, 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. In particular, 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.

Bevorzugt ist, dass das obere Schleifprofil und das untere Schleifprofil schräg, winklig und/oder in einem Radius oder Radienverlauf zu der Kanalwand angeordnet sind. Dadurch kann der gekrümmte Verlauf an der mindestens einen Stirnfläche der Rolle, insbesondere an der ersten Stirnfläche durch das obere Schleifprofil und an der zweiten Stirnfläche durch das untere bei und/oder während des Durchlaufens des Schleifkanals gefertigt werden. Optional ist an der fertig bearbeiteten Rolle eine besondere Oberflächentopographie entstanden, die nur durch die erfindungsgemäße Fertigungsvorrichtung und/oder durch das erfindungsgemäße Verfahren erzeugt werden kann.It is preferred that 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. As a result, 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. Optionally, 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.

In einer bevorzugten Ausführungsform der Erfindung ist der Schleifkanal in Durchlaufrichtung der Rolle verjüngt ausgebildet. Vorzugsweise verengt sich der Schleifkanal in Durchlaufrichtung. Insbesondere weist der Kanalzugang eine größere Weite auf als das Kanalende. Da durch das Schleifen der mindestens einen Stirnfläche bei und/oder während des Durchlaufens der Rolle durch den Schleifkanal eine axiale Längenanpassung der Rolle erfolgt, ist die Verjüngung und/oder zunehmende Verengung des Schleifkanals bevorzugt und von Vorteil, um den fortlaufenden Kontakt der mindestens einen Stirnfläche mit dem entsprechenden Schleifprofil der Schleifkanals zu gewährleisten.In a preferred embodiment of the invention, the grinding channel is tapered in the direction of passage of the roller. The grinding channel preferably narrows in the throughput direction. In particular, 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.

Durch die Fertigungsvorrichtung kann eine effektive und kostengünstige Fertigung, insbesondere Massenfertigung, gekrümmter Stirnflächen an Rollen bereitgestellt werden. Insbesondere kann in vorteilhafter Weise eine Taktzahl fertig bearbeiteter Rollen gegenüber herkömmlichen Fertigungsvorrichtungen erhöht werden.The production device can be used to provide effective and cost-effective production, in particular mass production, of curved end faces on rollers. In particular, the number of cycles for finished rolls can advantageously be increased compared to conventional production devices.

Einen weiteren Gegenstand der Erfindung bildet ein Verfahren zur Fertigung eines gekrümmten Verlaufs an mindestens einer Stirnfläche einer Rolle mit der Fertigungsvorrichtung nach der bisherigen Beschreibung und/oder nach den Ansprüchen 1 bis 7. Im Rahmen des Verfahrens wird die Halteeinrichtung insbesondere durch den Aktor dazu angetrieben, sich relativ zu der Schleifeinrichtung linear zu bewegen.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. Within the scope of the method, the holding device is driven in particular by the actuator to to move linearly relative to the grinder.

In einem bevorzugten Verfahrensschritt wird die Rolle in dem Schleifkanal angeordnet, sodass die Mantelfläche an der Halteeinrichtung anliegt, sodass die erste Stirnfläche das obere Schleifprofil kontaktiert und sodass die zweite Stirnfläche das untere Schleifprofil kontaktiert. Vorzugsweise wird die Rolle durch eine Linearbewegung der Halteeinrichtung relativ zu der Schleifeinrichtung dazu angetrieben, den ersten und zweiten Schleifkanal insbesondere rotierend zu durchlaufen.In a preferred method step, 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.

In einem weiteren bevorzugten Verfahrensschritt werden der gekrümmte Verlauf an der ersten Stirnfläche durch das obere Schleifprofil und der gekrümmte Verlauf der zweiten Stirnfläche durch das untere Schleifprofil geschliffen, während die Rolle den Schleifkanal rotierend durchläuft.In a further preferred method step, 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.

Weitere Merkmale, Vorteile und Wirkungen der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele der Erfindung. Dabei zeigen:

Figur 1
eine Fertigungsvorrichtung zur Fertigung eines gekrümmten Verlaufs an mindestens einer Stirnfläche einer Rolle mit einer Schleifeinrichtung und mit einer Halteeinrichtung;
Figur 2
eine Draufsicht und Seitenansicht eines Schleifkanals, der in der Schleifeinrichtung eingebracht ist;
Figur 3
der Schleifkanal aus Figur 2, wobei in dem Schleifkanal die Rolle angeordnet ist;
Figur 4
eine Draufsicht auf einen Kanalzugang des Schleifkanals und eine Seitenansicht des Kanalzugangs.
Further features, advantages and effects of the invention result from the following description of preferred exemplary embodiments of the invention. show:
figure 1
a manufacturing device for manufacturing a curved course on at least one end face of a roll with a grinding device and with a holding device;
figure 2
a plan view and side view of a grinding channel, which is introduced in the grinding device;
figure 3
the grinding channel figure 2 , wherein the roller is arranged in the grinding channel;
figure 4
a plan view of a channel access of the grinding channel and a side view of the channel access.

Einander entsprechende oder gleiche Teile sind in den Figuren jeweils mit den gleichen Bezugszeichen versehen.Corresponding or identical parts are each provided with the same reference symbols in the figures.

Figur 1 zeigt eine Fertigungsvorrichtung 1, die zur Fertigung, bevorzugt zur kosteneffektiven Massenfertigung, eines gekrümmten Verlaufs an mindestens einer Stirnfläche 3a, 3b einer Rolle 2 ausgebildet ist. Die Fertigungsvorrichtung 1 umfasst eine Schleifeinrichtung 4 und eine Halteeinrichtung 5. Die Rolle 2 ist zwischen der Schleifeinrichtung 4 und der Halteeinrichtung 5 angeordnet, insbesondere zwischen diesen formschlüssig gehalten, insbesondere eingeklemmt. 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.

Die Rolle 2 ist als ein Wälzkörper, insbesondere als eine Zylinderrolle, als eine Nadelrolle oder Tonnenrolle, für ein Wälzlager ausgebildet. Sie weist einen Durchmesser von z.B. 5 Millimeter, vorzugsweise von 6 Millimeter und/oder von bis zu 8 Millimeter auf. Eine Länge der Rolle 2 beträgt vorzugsweise mindestens 4 Millimeter, insbesondere mindestens 20 Millimeter, im Speziellen mindestens 40 Millimeter und/oder maximal 70 Millimeter.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.

Wie in Figur 3 genauer gezeigt, weist die Rolle 2 eine Mantelfläche 3c auf, die radial zu einer Drehachse X der Rolle 2 angeordnet ist. Die Rolle 2 umfasst eine erste und eine zweite Stirnfläche 3a, 3b auf, die axial einander gegenüberliegend angeordnet sind.As in figure 3 shown in more detail, 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.

Die Schleifeinrichtung 4 und die Halteeinrichtung 5 der Fertigungsvorrichtung 1 sind wie in Figur 1 gezeigt als quaderförmige Stahlbacken ausgebildet. Sie sind in einer Walzmaschine als Schleifmaschine integrierbar. Es kann auch eine andere Werkzeugmaschine verwendet werden. In der Schleifmaschine ist die Schleifeinrichtung 4 ortsfest und unbeweglich fixiert. Die Halteeinrichtung 5 ist relativ zu der Schleifeinrichtung 4 linear bewegbar. Hierfür umfasst die Fertigungsvorrichtung 1 einen nicht gezeigten Aktor, z.B. einen Linearmotor, der die Halteeinrichtung 5 linear bewegen kann.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 . For this purpose, the production device 1 includes an actuator (not shown), for example a linear motor, which can move the holding device 5 linearly.

Bei einer Linearbewegung L der Halteeinrichtung 5 bewegt sich diese beabstandet zu der Schleifeinrichtung 4 und gleichgerichtet und/oder parallel zu der Schleifeinrichtung 4.With a linear movement L of the holding device 5, it moves at a distance from the grinding device 4 and in the same direction and/or parallel to the grinding device 4.

Die Schleifeinrichtung 4 weist einen Schleifkanal 6 auf, der eine Kanalöffnung, eine Kanalwand 7 und ein oberes Schleifprofil 8a und ein unteres Schleifprofil 8b umfasst. Das obere und untere Schleifprofil 8a, 8b erstreckt sich entlang der Kanalöffnung, die der Kanalwand 7 gegenüberliegt. Das obere Schleifprofil 8a ist dazu ausgebildet, die erste Stirnfläche 3a der Rolle 2 zu schleifen, sodass daran der gekrümmte, insbesondere ballige, Verlauf entsteht. Das untere Schleifprofil 8b ist dazu ausgebildet, die zweite Stirnfläche 3b der Rolle 2 zu schleifen, sodass auch hier der gekrümmte, insbesondere ballige, Verlauf gebildet wird.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.

Die Halteeinrichtung 5 weist eine Haltefläche 9 zum Halten der Rolle 2 in dem Schleifkanal 6 auf. Die Haltefläche 9 ist optional mit einer reibbeiwerterhöhenden Beschichtung versehen, sodass ein sicherer Halt der Rolle 2 zwischen der Schleifeinrichtung 4 und der Halteeinrichtung 5 gewährleistet ist und ein Abrutschen der Rolle 2 vermieden werden kann.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.

In Figur 2 sind eine Draufsicht und eine Seitenansicht des Schleifkanals 6 der Schleifeinrichtung 4 gezeigt. Figur 3 zeigt eine Detaildarstellung der Rolle 2, die in dem Schleifkanal 6 abschnittsweise angeordnet ist.In 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.

Die Rolle 2 ist abschnittsweise so in dem Schleifkanal 6 angeordnet, dass die Drehachse X senkrecht, lotrecht oder vertikal verläuft und sich gleichgerichtet zu der Kanalwand 7 erstreckt. Mit den beiden Stirnflächen 3a, 3b kontaktiert die Rolle 2 die Schleifprofilen 8a, 8b. Durch die in Figur 1 gezeigte Halteeinrichtung 5 wird die Rolle 2 in dieser Position gehalten, insbesondere in den Schleifkanal 2 hineingedrückt.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.

Die Halteeinrichtung 5 führt, aktiviert durch den Aktor, die Linearbewegung L aus. Dadurch wird die Rolle 2 in einer Durchlaufrichtung D um die Drehachse X in Rotation versetzt, sodass sich die Rolle 2 in Durchlaufrichtung D durch den Schleifkanal 6 bewegt. Dabei oder währenddessen wird der gekrümmte Verlauf an der ersten Stirnfläche 3a der Rolle 2 durch das obere Schleifprofil 8a und der gekrümmte Verlauf an der zweiten Stirnfläche 3b durch das untere Schleifprofil 8b geschliffen.The holding device 5 carries out the linear movement L, activated by the actuator. As a result, 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 . At the same time or during this time, 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.

Figur 4 zeigt eine Draufsicht auf einen Kanalzugang 10 des Schleifkanals 6 und eine Seitenansicht des Kanalzugangs 10. Die Rolle 2 wird durch den Kanalzugang 10 in den Schleifkanal 6 eingesetzt, sodass die Stirnflächen 3a, 3b anschließend durch die Rotationsbewegung in Durchlaufrichtung D mit den gekrümmten Verläufen versehen werden können. Zum Einsetzen der Rolle 2 in den Schleifkanal 6 umfasst die Fertigungsvorrichtung 1 (Fig. 1) eine nicht gezeigte Zuführeinrichtung, die z.B. als ein Roboterarm und/oder Greifer ausgebildet ist. Nach dem vollständigen Durchlaufen des Schleifkanals 6 wird die Rolle 2 an einem Kanalende 12 ausgeworfen und z.B. durch ein Transportband abtransportiert. 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. To insert the roller 2 into the grinding channel 6, 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.

Der Kanalzugang 10 weist eine größere Weite W auf, als der Schleifkanal 6 im weiteren Verlauf in Durchlaufrichtung D. Insbesondere verjüngt oder verengt sich der Schleifkanal 6 in Durchlaufrichtung D. Dies ist notwendig, da die Rolle 2 bei dem Einsetzen in den Kanalzugang 10 und vor dem Schleifen eine größere Höhe H in axialer Richtung aufweist, als während oder nach dem Schleifen in dem Schleifkanal 6. Insbesondere verringert sich die Höhe H (Fig. 3) der Rolle 2 bei und/oder während des Schleifens des gekrümmten Verlaufs an den Stirnflächen 3a, 3b, sodass der Schleifkanal 6 durch die Verjüngung und/oder Verengung daran angepasst ist.The channel access 10 has a greater width W than the grinding channel 6 in the further course in the throughput direction D. In particular, 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. In particular, 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.

Das obere und untere Schleifprofil 8a, 8b sind mit einem abriebfesten Belag, zum Beispiel aus Bornitrit (CBN) versehen, sodass eine Lebensdauer erhöht und eine Abstumpfung verzögert werden kann. Die Schleifprofile 8a, 8b verlaufen quer, winklig oder in einem Radius oder Radienverlauf zu der Kanalwand 7 (siehe auch Fig.3). Insbesondere sind die Schleifprofile 8a, 8b durch eine Abstufung und/oder einen Radius bzw. Radienverlauf 11 gebildet, die/der so gestaltet ist/sind, dass der gekrümmte Verlauf der Stirnflächen 3a, 3b geschliffen werden kann.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 ). In particular, 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.

Durch die Fertigungsvorrichtung 1 gemäß Figur 1 kann in vorteilhafter Weise eine Taktzahl gegenüber herkömmlichen Fertigungsvorrichtungen zum Schleifen von gekrümmten Stirnflächen an Wälzkörpern erhöht werden. Dadurch können die Rollen 2 mit den gekrümmten Stirnflächen 3a, 3b kosteneffektiv gefertigt werden.By the manufacturing device 1 according to figure 1 a number of cycles can advantageously be increased compared to conventional production devices for grinding curved end faces on rolling elements. As a result, the rollers 2 with the curved end faces 3a, 3b can be manufactured cost-effectively.

BezugszeichenlisteReference List

11
Fertigungsvorrichtungmanufacturing device
22
Rollerole
3a3a
erste Stirnflächefirst face
3b3b
zweite Stirnflächesecond face
3c3c
Mantelflächelateral surface
44
Schleifeinrichtunggrinding device
55
Halteeinrichtungholding device
66
Schleifkanalgrinding channel
77
Kanalwandcanal wall
8a8a
oberes Schleifprofilupper grinding profile
8b8b
unteres Schleifprofillower grinding profile
99
Halteflächeholding surface
1010
Kanalzugangcanal access
1111
Abstufung und/oder Radiusgradation and/or radius
DD
Durchlaufrichtungflow direction
HH
HöheHeight
LL
Linearbewegunglinear motion
WW
Weitewidth
XX
Drehachseaxis of rotation

Claims (10)

  1. A manufacturing apparatus (1) for producing a curved contour on at least one end face (3a, 3b) of a roll (2), wherein the roll (2) has a lateral surface (3c), which is arranged radially to an axis of rotation (X) of the roll (2),
    having grinding device (4) for grinding the curved contour on the at least one end face (3a, 3b) of the roll (2), and
    having a holding device (5) for holding the roll (2) between the holding device (5) and the grinding device (4), wherein the holding device (5) may be moved in a linear fashion relative to the grinding device (4),
    characterised in that
    the grinding device (4) has a grinding channel (6) and a channel wall (7), wherein the grinding channel (6) comprises an upper grinding profile (8a) for grinding the curved contour on a first end face (3a) of the roll (2) and a lower grinding profile (8b) for grinding the curved contour on a second end face (3b) of the roll (2), wherein the channel wall (7), the upper grinding profile (8a) and the lower grinding profile (8b) are formed in one piece, and wherein the grinding device (4) is designed in such a way that the axis of rotation (X) of the roll (2) can be arranged to extend parallel to the channel wall (7).
  2. The manufacturing apparatus (1) according to claim 1, characterised in that the grinding device (4) is arranged in a fixed location.
  3. The manufacturing apparatus (1) according to claim 1 or 2, characterised in that the roll (2) can be and/or is arranged in positive engagement between the grinding device (4) and the holding device (5).
  4. The manufacturing apparatus (1) according to any one of the preceding claims, characterised in that the holding device (5) has a holding surface (9) for holding the roll (2) in the grinding channel (6), which has a friction coefficient-increasing coating.
  5. The manufacturing apparatus (1) according to any one of claims 1 to 4, characterised in that the roll (2) can be arranged in the grinding channel (6) so that a lateral surface (3c) of the roll (2) rests on the holding device (5) so that the first end face (3a) contacts the upper grinding profile (8a) of the grinding channel (6) and so that the second end face (3b) contacts the lower grinding profile (8b) of the grinding channel (6).
  6. The manufacturing apparatus (1) according to any one of claims 1 to 5, characterised in that the roll (2) can be driven by a linear motion (L), with respect to the grinding device (4), of the holding device (5) to roll on the grinding device (4) and to pass through the grinding channel (6) in a pass direction (D).
  7. The manufacturing apparatus (1) according to any one of claims 1 to 6, characterised in that the grinding channel (6) is tapered in the pass direction (D) of the roll (2) and/or narrows in the pass direction (D).
  8. A method for producing a curved contour on at least one end face (3a, 3b) of a roll (2) using the manufacturing apparatus (1) according to any one of the preceding claims, characterised in that the holding device (5) is driven to move relative to the grinding device (4) move in a linear fashion, wherein the roll (2) is rotated about its axis of rotation (X) and wherein the axis of rotation (X) of the roll (2) is arranged perpendicular and parallel to channel wall (7).
  9. The method according to claim 8, characterised in that the roll (2) is arranged in the grinding channel (6) in such a way that the first end face (3a) contacts the upper grinding profile (8a) and the second end face (3b) contacts the lower grinding profile (8b) and in that the holding device (5) rests and/or presses against the lateral surface (3c) of the roll (2), wherein the roll (2) is set in rotation about its axis of rotation (X) by the linear motion (L) of the holding device (5) and passes through the grinding channel (6) in the pass direction (D).
  10. The method according to any one of claims 8 to 9, characterised in that the curved contour on the first end face (3a) is ground by the upper grinding profile (8a) and in that the curved contour on the second end face (3b) is ground by the lower grinding profile (8b), while the roll (2) passes in rotation through the grinding channel (6) about its axis of rotation (X).
EP18773335.7A 2017-09-21 2018-09-05 Manufacturing apparatus for producing a curved contour on at least one end face of a roll and method for producing a curved contour on the at least one end face with the manufacturing apparatus Active EP3684547B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017121861.0A DE102017121861A1 (en) 2017-09-21 2017-09-21 Manufacturing device for producing a curved course on at least one end face of a roll and method for producing a curved course at the at least one end face with the manufacturing device
PCT/DE2018/100754 WO2019057238A1 (en) 2017-09-21 2018-09-05 Manufacturing apparatus for producing a curved contour on at least one end face of a roll and method for producing a curved contour on the at least one end face with the manufacturing apparatus

Publications (2)

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

Family

ID=63667663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18773335.7A Active EP3684547B1 (en) 2017-09-21 2018-09-05 Manufacturing apparatus for producing a curved contour on at least one end face of a roll and method for producing a curved contour on the at least one end face with the manufacturing apparatus

Country Status (10)

Country Link
US (1) US20200262021A1 (en)
EP (1) EP3684547B1 (en)
JP (1) JP6985495B2 (en)
KR (1) KR102608764B1 (en)
CN (1) CN111093896B (en)
BR (1) BR112020004533A2 (en)
DE (1) DE102017121861A1 (en)
HU (1) HUE063138T2 (en)
PL (1) PL3684547T3 (en)
WO (1) WO2019057238A1 (en)

Family Cites Families (10)

* 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 (en) * 1940-06-18 1943-01-04 Hirth Motoren G M B H Process and device for the finest finishing of the rounded edges on roller bearing rollers
US2908119A (en) * 1958-08-15 1959-10-13 Frank M Dudgeon Tool for externally truing and honing cylindrical workpieces
US3913275A (en) * 1973-08-10 1975-10-21 Thomas Scott Brawley Lapping, pressure grinding and flash roll apparatus and method
US3988861A (en) * 1973-08-10 1976-11-02 Thomas Scott Brawley Lapping or grinding apparatus and method
CN1032630C (en) * 1991-05-24 1996-08-28 襄阳轴承厂 Convexity superfinishing process for cylindrical-and conic-rollers
US5752775A (en) 1994-08-31 1998-05-19 Ntn Corporation Roller bearing
DE19629528A1 (en) * 1995-07-21 1997-01-30 Nec Corp Method and device for producing a convex end of a workpiece
JP5522569B2 (en) * 2010-01-26 2014-06-18 Ｎｔｎ株式会社 Roller manufacturing method
TWI552830B (en) * 2012-11-02 2016-10-11 鴻海精密工業股份有限公司 Polishing wheel and polishing apparatus

Also Published As

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

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