EP0131069B1 - Rolling tool - Google Patents

Rolling tool Download PDF

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Publication number
EP0131069B1
EP0131069B1 EP83112460A EP83112460A EP0131069B1 EP 0131069 B1 EP0131069 B1 EP 0131069B1 EP 83112460 A EP83112460 A EP 83112460A EP 83112460 A EP83112460 A EP 83112460A EP 0131069 B1 EP0131069 B1 EP 0131069B1
Authority
EP
European Patent Office
Prior art keywords
threaded nut
adjusting sleeve
threaded
tool
axially displaceable
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.)
Expired
Application number
EP83112460A
Other languages
German (de)
French (fr)
Other versions
EP0131069A3 (en
EP0131069A2 (en
Inventor
Garri Dr. Ing. Berstein
Siegfried Ing. Bagusche (Grad)
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.)
Hegenscheidt MFD GmbH and Co KG
Original Assignee
Wilhelm Hegenscheidt GmbH
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 Wilhelm Hegenscheidt GmbH filed Critical Wilhelm Hegenscheidt GmbH
Publication of EP0131069A2 publication Critical patent/EP0131069A2/en
Publication of EP0131069A3 publication Critical patent/EP0131069A3/en
Application granted granted Critical
Publication of EP0131069B1 publication Critical patent/EP0131069B1/en
Expired legal-status Critical Current

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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
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/02—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution
    • B24B39/023—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution the working tool being composed of a plurality of working rolls or balls
    • 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
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/04—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution
    • B24B39/045—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution the working tool being composed of a plurality of working rolls or balls
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/47—Burnishing

Definitions

  • the invention relates to a rolling tool for smooth rolling cylindrical surfaces with smooth rolling rolls, which roll on a support cone like a planet and are separated from a cage arranged coaxially to the support cone, support cone and cage being rotatable and axially displaceable relative to one another and at least one axially displaceable part in one to a direction of advance of the tool on a threaded nut arranged on a threaded part of a receiving shank provided with a longitudinal groove, which is positively connected via driving elements to an adjusting sleeve arranged coaxially to the shank, a locking sleeve also being provided with an inner bore in which a longitudinal wedge is arranged, which engages in the longitudinal groove of the threaded part of the receiving shaft and wherein the adjusting sleeve is axially displaceable by an amount such that unlocking takes place.
  • Rolling tools of the type described in the introduction are known from DE-PS 1954337 and are used in practice and achieve satisfactory results. Fluctuations in diameter of the nominal diameter of the tools to be machined can be compensated for by adjusting the tool within a reasonable range. This is done by axially displacing the support cone and the cage separating the roller rolls. This results in a corresponding radial movement of the rolling rolls, which are brought to a changed working diameter position. The axial displacement of the axially movable part takes place by changing the position of the mentioned threaded nut arranged on the shaft.
  • the threaded nut has a longitudinal groove on its outer circumference, which cooperates with a corresponding counterpart of an adjusting sleeve that overlaps the threaded nut.
  • the threaded nut is also rotated, thereby changing its axial position. This also changes the axial position of the axially displaceable part, whereby the diameter adjustment is effected.
  • the threaded nut has an end toothing on its rear end.
  • a bushing with corresponding end teeth with at least one tooth, but preferably in a cruciform arrangement four teeth is pushed onto the threaded part of the receiving shaft with corresponding end teeth facing the toothing of the threaded nut.
  • the inner bore of this sleeve has a wedge or a feather key which engages in the longitudinal groove of the threaded part of the receiving shaft.
  • the bush is inserted with its teeth into the teeth of the threaded nut and a lock nut is screwed on from behind the bush, so that the threaded nut and the bush and lock nut each abut against one another so that the threaded nut can no longer be twisted. Since the adjusting sleeve engages in the outer longitudinal groove of the threaded nut, it can of course no longer be turned.
  • the lock nut mentioned must first be loosened and the bushing described must be disengaged with its teeth. Then the threaded nut can be rotated accordingly by turning the adjusting sleeve and the diameter can be adjusted. After the diameter has been set, the bushing with its teeth must be brought back into engagement with the threaded nut and the lock nut must be screwed on.
  • the invention has for its object to improve a tool of the type described in such a way that a quicker and easier diameter adjustment is possible without loss of setting reliability and at the same time the construction effort should be reduced.
  • this object is achieved in that the locking bush is arranged in the feed direction in front of the threaded nut and has a plurality of receiving areas for the positively acting driving elements of the adjusting sleeve in the circumferential direction.
  • an axial bearing is arranged between the axially displaceable part and the locking bush. This minimizes the torsional load on the pawl.
  • Another embodiment of the invention provides that a compression spring is provided in the feed direction in front of the locking bush, which presses the locking bush directly against the threaded nut via displaceable components located in between.
  • the spreading effect of the spring mentioned always ensures correct installation and positioning of the corresponding components.
  • the adjusting sleeve arranged in front of the threaded nut has at least one axially acting compression spring, which is supported on the one hand on the adjusting sleeve and on the other hand on the threaded nut or on such components which are supported by the threaded nut, whereby on the other side of the threaded nut, the adjusting sleeve is held in abutment by the compression spring via a stop collar on the threaded nut.
  • the desired locking position can be automatically retracted by simply releasing the adjusting sleeve from the compression spring described.
  • a deliberate advancement of the adjustment sleeve after the setting has been made can be omitted. The adjustment sleeve only has to be released.
  • Another embodiment of the invention provides that the spring acts on the one hand on the axially displaceable part and on the other hand on the adjusting sleeve.
  • the desired spring load for the adjusting sleeve is achieved on the one hand and, on the other hand, the axially displaceable part is held under spring preload in a manner known per se, so that the tool with its smooth rolling rollers disengages in a known manner during the retraction and after leaving the rolled workpiece surface from the mentioned spring is automatically pushed back to the set working diameter.
  • the spring does both.
  • At least the longitudinal grooves provided on the outer circumference of the locking bush and threaded nut and the associated longitudinal wedge of the adjusting sleeve are designed as external splines and, in the case of threaded nut and adjusting sleeve, as a tooth space and corresponding tooth. This type of training is easy to manufacture and results in favorable engagement conditions.
  • the threaded nut and adjusting sleeve can be positively connected to one another by means of at least one axial pin by means of corresponding longitudinal bores, the locking sleeve having a plurality of corresponding longitudinal bores which are arranged distributed in the circumferential direction.
  • This design of the individual elements is particularly favorable for tools for rolling cylindrical outer surfaces.
  • FIGS. 1 and 2 do not differ fundamentally from one another. Only one tool is the kinematic inversion of the other tool. However, there are no fundamental differences between an inner smooth rolling tool and an outer smooth rolling tool of the type shown.
  • An inner smooth rolling tool according to FIG. 1 essentially consists of a holding shank 21, which is followed by a threaded part 14 in the axial direction. Threaded part 14 has a longitudinal groove 20. At the front end of the threaded part 14, a shaft 23 is inserted, the free end of which is designed as a support cone 2.
  • a plurality of smooth rolling rollers 1 are provided, which are supported on the support cone 2 and run around like a planet, and are separated from a cage 3 arranged concentrically with the support cone 2 in the usual and known manner.
  • the cage 3 is connected via a stud 4 to a part 5 which adjoins in the axial direction and is axially displaceable.
  • This axially displaceable part 5 is rotatable on the shaft 23 and is axially displaceable relative to the latter.
  • the axially displaceable part 5 has on its rear side an axial bore of such a diameter that the threaded part 14 can be pushed axially into this bore 24.
  • the axially displaceable part 5 has a collar 25, the rear flat surface of which is supported on an axial bearing 10.
  • Axial bearing 10 in turn is supported on the front face of a locking bush 11, the rear face of which in turn abuts the front face of a threaded nut 12.
  • the locking bush 11 is arranged axially displaceably on the threaded part 14 and engages with an inner longitudinal wedge 19 in the longitudinal groove 20 of the threaded part 14, whereby an anti-rotation device for the locking bush 11 is achieved.
  • the locking sleeve 11 On the outer peripheral surface, the locking sleeve 11 has longitudinal grooves 15 in a uniform arrangement.
  • the adjoining threaded nut 12 has at least one longitudinal groove 16 on its outer circumferential side, this longitudinal groove 16 being so dimensioned that a longitudinal groove 15 and the longitudinal groove 16 are mutually common by a longitudinal wedge 17 common to both can be held against rotation.
  • the longitudinal wedge 17 is arranged on the inside of an adjusting sleeve 18 and engages only a partial amount 22 in the axial direction in the longitudinal groove 15 of the locking bush 11. This already ensures adequate protection against rotation and the axial displacement path for removing the protection against rotation can be kept small.
  • the adjusting sleeve 18 rests with a rear stop collar 13 on the rear flat surface of the threaded nut 12. In this position, the desired anti-rotation lock is produced and the set diameter position is thereby locked.
  • the adjusting sleeve 18 comprises the structure previously described up to the collar 25 of the axially displaceable part 5.
  • the adjusting sleeve 18 closes with a snap ring 6, which is followed by a stop disk 7 on the inside.
  • a spiral compression spring 9 is arranged between the front flat surface of the collar 25 and the rear flat surface of the stop disk 7.
  • a further spiral compression spring 8 is arranged, which on the one hand also bears against the rear flat surface of the stop disc 7 and on the other hand is supported on the axial bearing 10. The spring 8 ensures that in the normal state the stop collar 13 always abuts the rear end face of the threaded nut 12.
  • the spring 9 ensures that, in the normal state, the rear flat surface of the collar 25 is always supported on the thrust bearing 10. All components therefore have a clearly defined position. However, especially with larger tools, it is easily possible to combine the springs 8 and 9 into a spring, which can then take up the arrangement of the spring 9.
  • the spring 9 ensures that when the tool is withdrawn from the finished bore, the smooth rolling rolls 1 can slide slightly forwards in the direction of a smaller diameter. When the tool has left the finished bore, the spring 9 presses the axially displaceable part 5 and thus the cage 3 and the smooth rolling rollers. . 1 back to the original position, which is reached after the rear flat surface of the collar 25 has been placed on the thrust bearing 10.
  • the adjusting sleeve 18 is withdrawn by the amount 22 in the direction of the arrow 26, so that the longitudinal wedge 17 is no longer in engagement with the longitudinal groove 15. However, the longitudinal wedge 17 is still in engagement with the longitudinal groove 16 of the threaded nut 12.
  • the threaded nut 12 changes its axial position on the threaded part 14, which, in cooperation with the components supported by the threaded nut 12, brings about the desired change in diameter of the enveloping circle of the smooth rolling rolls 1.
  • the adjustment sleeve 18 only has to be released. It is then from the force of the spring 8 and if necessary. the spring 9 in the opposite direction to the arrow 26 pushed again, whereby the longitudinal wedge 17 engages again in a longitudinal groove 15 of the locking sleeve 11, whereby the newly set diameter position is locked.
  • the tool can now be put into operation in the manner known in the prior art.
  • a tool according to FIG. 2 also works in the same way.
  • a tool according to FIG. 2 merely represents the kinematic reversal of a tool according to FIG. 1.
  • some components have therefore been modified to match external machining.
  • the smooth rolling rolls 1 ' run like a planet on a supporting cone 2' which surrounds them on the outside.
  • the support cone 2 ' is supported by a flange 28 concentric to the tool axis, the flange 28 being attached to the front end of a threaded nut 12'.
  • the threaded nut 12 ' is arranged on the threaded part 14', which has a longitudinal groove 20 ', the threaded part 14' continuing to the rear as the receiving shaft 21 '.
  • This receiving shaft 21 ' can now be designed in any way and is no longer shown.
  • a locking bush 11' is arranged to be longitudinally displaceable, which engages with a longitudinal wedge 19 'in the longitudinal groove 20' and is thereby secured against rotation.
  • an adjusting sleeve 18' is slidably and rotatably mounted on the receiving shaft 21 'or on the associated threaded part 14'.
  • a snap ring 6' with a stop disk 7 'arranged in front of it is provided on the receiving shaft 21'.
  • a compression spring 29 is arranged between the adjusting sleeve 18 'and the stop disk 7'.
  • the adjusting sleeve 18 ' has at least one axially extending pin 17' which passes through a corresponding longitudinal bore in the threaded nut 12 'and on the other side of the threaded nut 12' in one of a plurality of longitudinal bores 15 'of the locking sleeve 11 which are evenly distributed around the circumference 'intervenes.
  • the adjusting sleeve 18', the threaded nut 12 'and the locking bush 11' are connected to one another, the longitudinal wedge 19 'in the described state ensuring that the three parts mentioned cannot rotate round, at the same time the Thread of the threaded nut 12 'ensures that at least the threaded nut 12' cannot move axially.
  • the compression spring 29 ensures that the adjusting sleeve 18 ' always bears against the back of the threaded nut 12 '.
  • the spiral compression spring 8 ' ensures that the locking bush 11' is correspondingly positioned on the other side of the threaded nut 12 '.
  • the smooth rolling rolls 1 ' are guided in a suitable and known manner in a cage 3' separating them, which is connected, for example via a stud screw 4 ', to a likewise axially displaceable part 5', which extends via a collar 25 'on an axial bearing 10' in a manner known per se.
  • a spring 9 ' ensures the necessary contact and the free movement of the smooth rolling rolls 1' in the axial direction during the retraction of the tool. This construction is also known per se.
  • the adjusting sleeve 18 ' must be withdrawn by the amount 22' against the force of the compression spring 29 in the direction of the arrow 26, so that a separation from the locking bush 11 'takes place.
  • the adjustment sleeve 18 ' only has to be released so that it is pushed by the compression spring 29, engages in a corresponding suitable bore 15' of the locking bush 11 'via the tip of at least one pin 17' and thus the secure locking restores.

Description

Die Erfindung betrifft ein Walzwerkzeug zum Glattwalzen zylindrischer Flächen mit Glattwalzrollen, die auf einem Stützkegel planetenärtig abrollen und von einem koaxial zum Stützkegel angeordneten Käfig separiert werden, wobei Stützkegel und Käfig relativ zueinander drehbar und axial verschiebbar angeordnet sind und sich mindestens ein axial verschieblicher Teil in einer zu einer Vorschubrichtung des Werkzeuges entgegengesetzten Richtung an einer auf einem mit einer Längsnut versehenen Gewindeteil eines Aufnahmeschaftes angeordneten Gewindemutter abstützt, die über Mitnahmelemente formschlüssig mit einer koaxial zum Schaft angeordneten Verstellhülse verbunden ist, wobei weiter eine Sperrhülse vorhanden ist mit einer Innenbohrung, in welcher ein Längskeil angeordnet ist, der in die Längsnut des Gewindeteils des Aufnahmeschaftes eingreift und wobei die Verstellhülse axial um einen solchen Betrag verschiebbar ist, daß ein Entsperren erfolgt.The invention relates to a rolling tool for smooth rolling cylindrical surfaces with smooth rolling rolls, which roll on a support cone like a planet and are separated from a cage arranged coaxially to the support cone, support cone and cage being rotatable and axially displaceable relative to one another and at least one axially displaceable part in one to a direction of advance of the tool on a threaded nut arranged on a threaded part of a receiving shank provided with a longitudinal groove, which is positively connected via driving elements to an adjusting sleeve arranged coaxially to the shank, a locking sleeve also being provided with an inner bore in which a longitudinal wedge is arranged, which engages in the longitudinal groove of the threaded part of the receiving shaft and wherein the adjusting sleeve is axially displaceable by an amount such that unlocking takes place.

Walzwerkzeuge der eingangs beschriebenen Art sind bekannt geworden durch die DE-PS 1954337 und in der Praxis im Einsatz und erreichen befriedigende Ergebnisse. Durchmesserschwankungen der Nenndurchmesser der zu bearbeitenden Werkzeuge können durch Verstellung des Werkzeuges in angemessenem Rahmen ausgeglichen werden. Dies geschieht dadurch, daß Stützkegel und der die Walzrollen separierende Käfig axial gegeneinander verschoben werden. Hierdurch tritt eine entsprechende Radialbewegung der Walzrollen ein, die hierdurch auf eine veränderte Arbeitsdurchmesserlage gebracht werden. Die Axialverschiebung des jeweils axial beweglichen Teiles geschieht durch eine Lageveränderung der auf dem Schaft angeordneten genannten Gewindemutter. Hierzu weist die Gewindemutter an ihrem Außenumfang eine Längsnut auf, die mit einem entsprechenden Gegenstück einer die Gewindemutter übergreifenden Verstellhülse zusammenarbeitet. Durch Verdrehung der Verstellhülse wird die Gewindemutter mit verdreht und dadurch deren axiale Lage verändert. Hierdurch wird auch die axiale Lage des jeweils axial verschieblichen Teiles verändert, wodurch die Durchmessereinstellung bewirkt wird.Rolling tools of the type described in the introduction are known from DE-PS 1954337 and are used in practice and achieve satisfactory results. Fluctuations in diameter of the nominal diameter of the tools to be machined can be compensated for by adjusting the tool within a reasonable range. This is done by axially displacing the support cone and the cage separating the roller rolls. This results in a corresponding radial movement of the rolling rolls, which are brought to a changed working diameter position. The axial displacement of the axially movable part takes place by changing the position of the mentioned threaded nut arranged on the shaft. For this purpose, the threaded nut has a longitudinal groove on its outer circumference, which cooperates with a corresponding counterpart of an adjusting sleeve that overlaps the threaded nut. By turning the adjusting sleeve, the threaded nut is also rotated, thereby changing its axial position. This also changes the axial position of the axially displaceable part, whereby the diameter adjustment is effected.

Damit nach erfolgter Durchmessereinstellung keine unbeabsichtigte Verstellung erfolgen kann, weist die Gewindemutter auf ihrer rückwärtigen Stirnseite eine Stirnverzahnung auf. Hierzu passend ist von hinten auf den Gewindeteil des Aufnahmeschaftes eine Büchse mit entsprechender, der Verzahnung der Gewindemutter zugewandter Stirnverzahnung mit mindestens einem Zahn, vorzugsweise aber in kreuzförmiger Anordnung vier Zähnen aufgeschoben. Die Innenbohrung dieser Büchse weist einen Keil oder eine Paßfeder auf, die in die Längsnut des Gewindeteils des Aufnahmeschaftes eingreift. Hierdurch ist die Büchse undrehbar aber axial verschiebbar auf dem genannten Gewindeteil geführt. Hat nun die Gewindemutter eine gewünschte Axiallage erreicht, so wird die Büchse mit ihren Zähnen in die Zähne der Gewindemutter eingeschoben und es wird von hinten hinter die Büchse eine Kontermutter aufgeschraubt, so daß dann Gewindemutter und Büchse und Kontermutter jeweils aneinander anliegen, so daß die Gewindemutter nun nicht mehr verdreht werden kann. Da die Verstellhülse in die äußere Längsnut der Gewindemutter eingreift, kann auch sie natürlich nicht mehr verdreht werden.So that no unintentional adjustment can take place after the diameter has been set, the threaded nut has an end toothing on its rear end. To this end, a bushing with corresponding end teeth with at least one tooth, but preferably in a cruciform arrangement, four teeth is pushed onto the threaded part of the receiving shaft with corresponding end teeth facing the toothing of the threaded nut. The inner bore of this sleeve has a wedge or a feather key which engages in the longitudinal groove of the threaded part of the receiving shaft. As a result, the sleeve is non-rotatably but axially displaceably guided on the threaded part mentioned. Now that the threaded nut has reached a desired axial position, the bush is inserted with its teeth into the teeth of the threaded nut and a lock nut is screwed on from behind the bush, so that the threaded nut and the bush and lock nut each abut against one another so that the threaded nut can no longer be twisted. Since the adjusting sleeve engages in the outer longitudinal groove of the threaded nut, it can of course no longer be turned.

Soll nun eine Durchmessereinstellung vorgenommen werden, so muß zunächst die genannte Kontermutter gelöst und die beschriebene Büchse mit ihren Zähnen außer Eingriff gebracht werden. Danach kann durch Verdrehen der Verstellhülse die Gewindemutter entsprechend verdreht und die Durchmessereinstellung vorgenommen werden. Nach erfolgter Durchmessereinstellung muß die Büchse mit ihren Zähnen wieder mit der Gewindemutter in Eingriff gebracht werden und die Kontermutter angeschraubt werden.If a diameter adjustment is to be carried out, the lock nut mentioned must first be loosened and the bushing described must be disengaged with its teeth. Then the threaded nut can be rotated accordingly by turning the adjusting sleeve and the diameter can be adjusted. After the diameter has been set, the bushing with its teeth must be brought back into engagement with the threaded nut and the lock nut must be screwed on.

Der Erfindung liegt die Aufgabe zugrunde, ein Werkzeug der eingangs beschriebenen Art so zu verbessern, daß eine raschere und einfachere Durchmesserverstellung möglich ist, ohne daß hierdurch Einstellsicherheit verloren geht und es soll gleichzeitig der Bauaufwand verringert werden.The invention has for its object to improve a tool of the type described in such a way that a quicker and easier diameter adjustment is possible without loss of setting reliability and at the same time the construction effort should be reduced.

Erfindungsgemäß ist diese Aufgabe dadurch gelöst, daß die Sperrbüchse in Vorschubrichtung vor der Gewindemutter angeordnet ist und in Umfangsrichtung in gleichmäßiger Verteilung mehrere Aufnahmebereiche für die formschlüssig wirkenden Mitnahmeelemente der Verstellhülse aufweist. Durch diese beschriebene Anordnung wird es in einfachster Weise möglich, Verstellhülse, Gewindemutter, Sperrbüchse unter Einbeziehung des Gewindeteils durch gegenseitigen Eingriff über die beschriebenen Mitnahmeelemente gegeneinander verdrehsicher zu arretieren, ohne daß hierzu die Hilfe einer Kontermutter erforderlich wäre. Damit kann mindestens die Kontermutter entfallen und es kann gleichzeitig die beschriebene kompliziert zu fertigende Stirnseitenverzahnung entfallen. Durch die besondere Anordnung der Sperrbüchse, die nunmehr vor der Gewindemutter liegt, ist es möglich, die gegenseitige Arretierung durch einfaches Zurückziehen der Verstellhülse zu lösen, weil durch dieses Zurückziehen die formschlüssige Verbindung zur Sperrbüchse gelöst wird, so daß die gegenseitige Arretierung gelöst ist und die Gewindemutter durch einfache Drehbewegung der Verstellhülse verdreht werden kann. Ist die gewünschte Einstellung erreicht, wird die Verstellhülse wieder vorwärts geschoben und die Arretierung ist wieder hergestellt. Es ist also für die Einstellung nichts weiter erforderlich, als eine kurze Rückzugs- und Verdrehbewegung der Verstellhülse. Nach Erreichen der gewünschten Einstellage wird die Verstellhülse wieder vorgeschoben und die eingestellte Lage ist absolut zuverlässig arretiert. Ein Lösen und Festschrauben von Kontermuttern ist nicht erforderlich und auch die Kontermutter selbst ist überflüssig. Stirnseitenverzahnungen können entfallen.According to the invention, this object is achieved in that the locking bush is arranged in the feed direction in front of the threaded nut and has a plurality of receiving areas for the positively acting driving elements of the adjusting sleeve in the circumferential direction. With the arrangement described, it is possible in the simplest possible way to lock the adjusting sleeve, threaded nut, pawl with respect to one another in a rotationally secure manner, including the threaded part, by mutual engagement via the driving elements described, without the need for a lock nut. This means that at least the lock nut can be dispensed with and at the same time the described front toothing, which is complicated to manufacture, can be omitted. Due to the special arrangement of the pawl, which is now in front of the threaded nut, it is possible to release the mutual locking by simply pulling back the adjusting sleeve, because this positive release of the positive connection to the pawl is released, so that the mutual locking is released and the Threaded nut can be rotated by simply turning the adjusting sleeve. When the desired setting is reached, the adjustment sleeve is pushed forward again and the locking mechanism is restored. All that is required for the adjustment is a short retraction and twisting movement of the adjusting sleeve. After reaching the desired setting position, the ver the adjusting sleeve is pushed in again and the set position is locked absolutely reliably. It is not necessary to loosen and tighten lock nuts and the lock nut itself is also superfluous. Face gears can be omitted.

Nach einer Ausgestaltung der Erfindung für die Bearbeitung von Bohrungen ist vorgesehen, daß zwischen dem axial verschieblichen Teil und der Sperrbüchse ein Axiallager angeordnet ist. Hierdurch wird die Verdrehbelastung auf die Sperrbüchse minimiert.According to one embodiment of the invention for machining bores, it is provided that an axial bearing is arranged between the axially displaceable part and the locking bush. This minimizes the torsional load on the pawl.

Wiederum eine Ausgestaltung der Erfindung sieht vor, daß in Vorschubrichtung vor der Sperrbüchse eine Druckfeder vorgesehen ist, die die Sperrbüchse direkt über dazwischen liegende verschiebbare Bauelemente gegen die Gewindemutter andrückt. Die Spreizwirkung der genannten Feder sorgt immer für eine korrekte Anlage und Positionierung der entsprechenden Bauelemente.Another embodiment of the invention provides that a compression spring is provided in the feed direction in front of the locking bush, which presses the locking bush directly against the threaded nut via displaceable components located in between. The spreading effect of the spring mentioned always ensures correct installation and positioning of the corresponding components.

Nach einer anderen Ausgestaltung der Erfindung ist vorgesehen, daß die Verstellhülse vor der Gewindemutter angeordnet mindestens eine axial wirkende Druckfeder aufweist, die sich einerseits an der Stellhülse und anderersseits an der Gewindemutter oder an solchen Bauteilen, die von der Gewindemutter abgestützt werden, abstützt, wobei auf der anderen Seite der Gewindemutter die Verstellhülse über einen Anschlagkragen an der Gewindemutter von der Druckfeder in Anlage gehalten wird. Hierdurch kann die gewünschte Arretierlage nach einfachem Loslassen der Verstellhülse von der beschriebenen Druckfeder selbsttätig eingefahren werden. Ein bewußtes Vorschieben der Verstellhülse nach erfolgter Einstellung kann entfallen. Die Verstellhülse muß nur noch losgelassen werden.According to another embodiment of the invention it is provided that the adjusting sleeve arranged in front of the threaded nut has at least one axially acting compression spring, which is supported on the one hand on the adjusting sleeve and on the other hand on the threaded nut or on such components which are supported by the threaded nut, whereby on the other side of the threaded nut, the adjusting sleeve is held in abutment by the compression spring via a stop collar on the threaded nut. As a result, the desired locking position can be automatically retracted by simply releasing the adjusting sleeve from the compression spring described. A deliberate advancement of the adjustment sleeve after the setting has been made can be omitted. The adjustment sleeve only has to be released.

Wiederum eine andere Ausgestaltung der Erfindung sieht vor, daß die Feder gleichzeitig einerseits auf das axial verschiebbliche Teil und andererseits auf die Verstellhülse wirkt. Hierdurch wird einerseits die gewünschte Federbelastung für die Verstellhülse erreicht und anderersseits gleichzeitig das axial verschiebliche Teil in an sich bekannter Weise unter Federvorlast gehalten, so daß das Werkzeug mit seinen Glattwalzrollen in bekannter Weise während des Rückzugs außer Eingriff kommt und nach Verlassen der gewalzten Werkstückoberfläche von der genannten Feder automatisch wieder auf den eingestellten Arbeitsdurchmesser geschoben wird. Im vorliegenden Fall erfüllt die Feder beide Aufgaben.Another embodiment of the invention provides that the spring acts on the one hand on the axially displaceable part and on the other hand on the adjusting sleeve. As a result, the desired spring load for the adjusting sleeve is achieved on the one hand and, on the other hand, the axially displaceable part is held under spring preload in a manner known per se, so that the tool with its smooth rolling rollers disengages in a known manner during the retraction and after leaving the rolled workpiece surface from the mentioned spring is automatically pushed back to the set working diameter. In the present case, the spring does both.

Auch ist nach einer Ausgestaltung der Erfindung noch vorgeschlagen, daß mindestens die am Außenumfang von Sperrbüchse und Gewindemutter vorgesehenen Längsnuten und der dazu gehörige Längskeil der Verstellhülse als äußere Geradverzahnung und bei Gewindemutter und Verstellhülse als Zahnlücke und entsprechenden Zahn ausgebildet sind. Diese Art der Ausbildung ist einfach herstellbar und ergibt günstige Eingriffsverhältnisse.It is also proposed according to an embodiment of the invention that at least the longitudinal grooves provided on the outer circumference of the locking bush and threaded nut and the associated longitudinal wedge of the adjusting sleeve are designed as external splines and, in the case of threaded nut and adjusting sleeve, as a tooth space and corresponding tooth. This type of training is easy to manufacture and results in favorable engagement conditions.

Schließlich ist nach einer Ausgestaltung der Erfindung noch vorgesehen, daß Sperrbüchse,Finally, according to one embodiment of the invention, it is also provided that the blocking sleeve,

Gewindemutter und Verstellhülse über mindestens einen Axialstift miteinander durch entsprechende Längsbohrungen formschlüssig verbindbar sind, wobei die Sperrbüchse über mehrere in Umfangsrichtung verteilt angeordneter entsprechender Längsbohrungen verfügt. Diese Gestaltung der einzelnen Elemente ist besonders günstig bei Werkzeugen zum Walzen zylindrischer Außenflächen.The threaded nut and adjusting sleeve can be positively connected to one another by means of at least one axial pin by means of corresponding longitudinal bores, the locking sleeve having a plurality of corresponding longitudinal bores which are arranged distributed in the circumferential direction. This design of the individual elements is particularly favorable for tools for rolling cylindrical outer surfaces.

Die Erfindung soll nun anhand der in den Zeichnungen dargestellten Ausführungsbeispiele näher beschrieben werden.The invention will now be described with reference to the embodiments shown in the drawings.

Es zeigen :

  • Figur 1 Innenglattwalzwerkzeug in Längsschnitt und Seitenansicht.
  • Figur 2 Außenglattwalzwerkzeug in Längsschnitt.
Show it :
  • Figure 1 internal smoothing tool in longitudinal section and side view.
  • Figure 2 external smooth rolling tool in longitudinal section.

Die Werkzeuge nach den Figuren 1 und 2 unterscheiden sich grundsätzlich nicht voneinander. Es ist lediglich jeweils das eine Werkzeug die kinematische Umkehrung des anderen Werkzeugs. Prinzipielle Unterschiede zwischen einem Innenglattwalzwerkzeug und einem Außenglattwalzwerkzeug der dargestellten Art bestehen jedoch nicht. Ein Innenglattwalzwerkzeug nach Figur 1 besteht im wesentlichen aus einem Aufnahmeschaft 21, dem sich in axialer Richtung ein Gewindeteil 14 anschließt. Gewindeteil 14 weist eine Längsnut 20 auf. Am vorderen Ende des Gewindeteils 14 ist ein Schaft 23 eingesetzt, dessen freies Ende als Stützkegel 2 ausgebildet ist. Auf dem Stützkegel 2 sich abstützend und planetenartig umlaufend sind mehrere Glattwalzrollen 1 vorgesehen, die von einem zum Stützkegel 2 konzentrisch angeordenten Käfig 3 in üblicher und bekannter Weise separiert werden. Der Käfig 3 ist über eine Stiftschraube 4 mit einem sich in axialer Richtung anschließenden und axial verschieblichen Teil 5 verbunden. Dieser axial verschiebliche Teil 5 ist auf dem Schaft23 drehbar und gegenüber diesem axial verschiebbar geführt. Der axial verschiebliche Teil 5 weist an seiner Rückseite eine Axialbohrung von solchem Durchmesser auf, daß der Gewindeteil 14 axial in diese Bohrung 24 hineingeschoben werden kann. Am rückwärtigen Ende weist das axial verschiebliche Teil 5 einen Kragen 25 auf, dessen hintere Planfläche sich an einem Axiallager 10 abstützt. Axiallager 10 seinerseits stützt sich an der vorderen Stirnfläche einer Sperrbüchse 11 ab, deren hintere Stirnfläche wiederum an der vorderen Stirnfläche einer Gewindemutter 12 anliegt. Die Sperrbüchse 11 ist axial verschieblich auf dem Gewindeteil 14 angeordnet und greift mit einem inneren Längskeil 19 in die Längsnut 20 des Gewindeteils 14 ein, wodurch eine Verdrehsicherung für die Sperrbüchse 11 erreicht wird.The tools according to FIGS. 1 and 2 do not differ fundamentally from one another. Only one tool is the kinematic inversion of the other tool. However, there are no fundamental differences between an inner smooth rolling tool and an outer smooth rolling tool of the type shown. An inner smooth rolling tool according to FIG. 1 essentially consists of a holding shank 21, which is followed by a threaded part 14 in the axial direction. Threaded part 14 has a longitudinal groove 20. At the front end of the threaded part 14, a shaft 23 is inserted, the free end of which is designed as a support cone 2. A plurality of smooth rolling rollers 1 are provided, which are supported on the support cone 2 and run around like a planet, and are separated from a cage 3 arranged concentrically with the support cone 2 in the usual and known manner. The cage 3 is connected via a stud 4 to a part 5 which adjoins in the axial direction and is axially displaceable. This axially displaceable part 5 is rotatable on the shaft 23 and is axially displaceable relative to the latter. The axially displaceable part 5 has on its rear side an axial bore of such a diameter that the threaded part 14 can be pushed axially into this bore 24. At the rear end, the axially displaceable part 5 has a collar 25, the rear flat surface of which is supported on an axial bearing 10. Axial bearing 10 in turn is supported on the front face of a locking bush 11, the rear face of which in turn abuts the front face of a threaded nut 12. The locking bush 11 is arranged axially displaceably on the threaded part 14 and engages with an inner longitudinal wedge 19 in the longitudinal groove 20 of the threaded part 14, whereby an anti-rotation device for the locking bush 11 is achieved.

Auf der äußeren Umfangsfläche weist die Sperrbüchse 11 in gleichmäßiger Anordnung Längsnuten 15 auf. Die sich anschließende Gewindemutter 12 weist auf ihrer Außenumfangsseite mindestens eine Längsnut 16 auf, wobei diese Längsnut 16 in ihren Abmessungen so gestaltet ist, daß eine Längsnut 15 und die Längsnut 16 von einem für beide gemeinsamen Längskeil 17 gegeneinander verdrehsicher gehalten werden können. Der Längskeil 17 ist auf der Innenseite einer Verstellhülse 18 angeordnet und greift nur einen Teilbetrag 22 in axialer Richtung in die Längsnut 15 der Sperrbüchse 11 ein. Hierdurch wird bereits eine ausreichende Verdrehsicherung gewährleistet und der axiale Verschiebeweg zur Aufhebung der Verdrehsicherung kann klein gehalten werden.On the outer peripheral surface, the locking sleeve 11 has longitudinal grooves 15 in a uniform arrangement. The adjoining threaded nut 12 has at least one longitudinal groove 16 on its outer circumferential side, this longitudinal groove 16 being so dimensioned that a longitudinal groove 15 and the longitudinal groove 16 are mutually common by a longitudinal wedge 17 common to both can be held against rotation. The longitudinal wedge 17 is arranged on the inside of an adjusting sleeve 18 and engages only a partial amount 22 in the axial direction in the longitudinal groove 15 of the locking bush 11. This already ensures adequate protection against rotation and the axial displacement path for removing the protection against rotation can be kept small.

Die Verstellhülse 18 liegt im Ruhezustand mit einem hinteren Anschlagkragen 13 an der rückseitigen Planfläche der Gewindemutter 12 an. In dieser Lage ist die gewünschte Verdrehsicherung hergestellt und die eingestellte Durchmesserlage hierdurch arretiert.In the idle state, the adjusting sleeve 18 rests with a rear stop collar 13 on the rear flat surface of the threaded nut 12. In this position, the desired anti-rotation lock is produced and the set diameter position is thereby locked.

In Vorschubrichtung nach vorne hin umfaßt die Verstellhülse 18 den bisher beschriebenen Aufbau bis vor den Kragen 25 des axial verschieblichen Teiles 5. An der vorderen Öffnung schließt die Verstellhülse 18 ab mit einem Sprengring 6, dem nach innen eine Anschlagscheibe 7 folgt. Zwischen der vorderen Planfläche des Kragens 25 und der hinteren Planfläche der Anschlagscheibe 7 ist eine Spiraldruckfeder 9 angeordnet. Weiterhin und konzentrisch zur Spiraldruckfeder 9 ist eine weitere Spiraldruckfeder 8 angeordnet, die einerseits ebenfalls an der hinteren Planfläche der Anschlagscheibe 7 anliegt und sich andererseits am Axiallager 10 abstützt. Die Feder 8 sorgt dafür, daß im Normalzustand der Anschlag kragen 13 immer an der hinteren Stirnfläche der Gewindemutter 12 anliegt. Die Feder 9 sorgt dafür, daß im Normalzustand die hintere Planfläche des Kragens 25 sich immer am Axiallager 10 abstützt. Alle Bauteile nehmen somit eine eindeutig bestimmte Lage ein. Es ist jedoch insbesondere bei größeren Werkzeugen ohne weiteres möglich, die Federn 8 und 9 zu einer Feder Zusammenzufassen, die dann die Anordnung der Feder 9 einnehmen kann. Im Ausführungsbeispiel sorgt die Feder 9 dafür, daß bei einem Rückzug des Werkzeuges aus der fertig bearbeiteten Bohrung die Glattwalzrollen 1 leicht nach vorne in Richtung eines kleineren Durchmessers rutschen können. Hat das Werkzeug die fertig bearbeitete Bohrung verlassen, so drückt die Feder 9 den axial verschieblichen Teil 5 und damit den Käfig 3 und die Glattwalzrollen ..1 wieder zurück in die ursprüngliche Position, die nach Anlage der hinteren Planfläche des Kragens 25 am Axiallager 10 erreicht wird.In the advancing direction towards the front, the adjusting sleeve 18 comprises the structure previously described up to the collar 25 of the axially displaceable part 5. At the front opening, the adjusting sleeve 18 closes with a snap ring 6, which is followed by a stop disk 7 on the inside. A spiral compression spring 9 is arranged between the front flat surface of the collar 25 and the rear flat surface of the stop disk 7. Furthermore and concentrically to the spiral compression spring 9, a further spiral compression spring 8 is arranged, which on the one hand also bears against the rear flat surface of the stop disc 7 and on the other hand is supported on the axial bearing 10. The spring 8 ensures that in the normal state the stop collar 13 always abuts the rear end face of the threaded nut 12. The spring 9 ensures that, in the normal state, the rear flat surface of the collar 25 is always supported on the thrust bearing 10. All components therefore have a clearly defined position. However, especially with larger tools, it is easily possible to combine the springs 8 and 9 into a spring, which can then take up the arrangement of the spring 9. In the exemplary embodiment, the spring 9 ensures that when the tool is withdrawn from the finished bore, the smooth rolling rolls 1 can slide slightly forwards in the direction of a smaller diameter. When the tool has left the finished bore, the spring 9 presses the axially displaceable part 5 and thus the cage 3 and the smooth rolling rollers. . 1 back to the original position, which is reached after the rear flat surface of the collar 25 has been placed on the thrust bearing 10.

Zur Durchmesserverstellung wird die Verstellhülse 18 in Richtung des Pfeiles 26 um den Betrag 22 zurückgezogen, so daß der Längskeil 17 nicht mehr in Eingriff mit der Längsnut 15 steht. Nach wie vor ist jedoch der Längskeil 17 in Eingriff mit der Längsnut 16 der Gewindemutter 12. Nach dem beschriebenen Rückzug der Verstellhülse 18 kann diese beispielsweise in Richtung des Pfeiles 27 gedreht werden, wodurch auch die Gewindemutter 12 entsprechend gedreht wird. Hierdurch verändert die Gewindemutter 12 ihre axiale Lage auf dem Gewindeteil 14, wodurch in Zusammenwirken mit den von der Gewindemutter 12 abgestützten Bauteilen die gewünschte Durchmesserveränderung des Hüllkreises der Glattwalzrollen 1 bewirkt wird. Ist die gewünschte Lage erreicht, so muß lediglich die Verstellhülse 18 losgelassen werden. Sie wird dann von der Kraft der Feder 8 und ggfls. der Feder 9 in zum Pfeil 26 entgegengesetzter Richtung wieder vorgeschoben, wodurch der Längskeil 17 wieder in eine Längsnut 15 der Sperrbüchse 11 eingreift, wodurch die neu eingestellte Durchmesserlage arretiert ist. Das Werkzeug kann nun in der im Stand der Technik bekannten Weise in Betrieb genommen werden.To adjust the diameter, the adjusting sleeve 18 is withdrawn by the amount 22 in the direction of the arrow 26, so that the longitudinal wedge 17 is no longer in engagement with the longitudinal groove 15. However, the longitudinal wedge 17 is still in engagement with the longitudinal groove 16 of the threaded nut 12. After the described retraction of the adjusting sleeve 18, it can be rotated, for example, in the direction of the arrow 27, as a result of which the threaded nut 12 is also rotated accordingly. As a result, the threaded nut 12 changes its axial position on the threaded part 14, which, in cooperation with the components supported by the threaded nut 12, brings about the desired change in diameter of the enveloping circle of the smooth rolling rolls 1. Once the desired position has been reached, the adjustment sleeve 18 only has to be released. It is then from the force of the spring 8 and if necessary. the spring 9 in the opposite direction to the arrow 26 pushed again, whereby the longitudinal wedge 17 engages again in a longitudinal groove 15 of the locking sleeve 11, whereby the newly set diameter position is locked. The tool can now be put into operation in the manner known in the prior art.

In im Prinzip gleicher Weise arbeitet auch ein Werkzeug nach Figur 2. Ein Werkzeug nach Figur 2 stellt lediglich die kinematische Umkehrung eines Werkzeuges nach Figur 1 dar. Zur Realisierung des gleichen Konstruktionsprinzips sind daher in konstruktiver Anpassung an eine Außenbearbeitung einige Bauteile verändert.In principle, a tool according to FIG. 2 also works in the same way. A tool according to FIG. 2 merely represents the kinematic reversal of a tool according to FIG. 1. In order to implement the same design principle, some components have therefore been modified to match external machining.

Die Glattwalzrollen 1' laufen planetenartig auf einem Stützkegel 2' ab, der sie außen umfaßt. Der Stützkegel 2' wird von einem Flansch 28 konzentrisch zur Werkzeugachse getragen, wobei der Flansch 28 am vorderen Ende einer Gewindemutter 12' befestigt ist. Die Gewindemutter 12' ist auf dem Gewindeteil 14', welches eine Längsnut 20' aufweist, angeordnet, wobei sich das Gewindeteil 14' nach hinten als Aufnahmeschaft 21' fortsetzt. Dieser Aufnahmeschaft 21' kann nun in beliebiger Weise gestaltet sein und ist nicht mehr weiter dargestellt.The smooth rolling rolls 1 'run like a planet on a supporting cone 2' which surrounds them on the outside. The support cone 2 'is supported by a flange 28 concentric to the tool axis, the flange 28 being attached to the front end of a threaded nut 12'. The threaded nut 12 'is arranged on the threaded part 14', which has a longitudinal groove 20 ', the threaded part 14' continuing to the rear as the receiving shaft 21 '. This receiving shaft 21 'can now be designed in any way and is no longer shown.

In Vorschubrichtung vor der Gewindemutter 12' ist eine Sperrbüchse 11' längsverschieblich angeordnet, die mit einem Längskeil 19' in die Längsnut 20' eingreift und dadurch gegen Verdrehung gesichert ist.In the feed direction in front of the threaded nut 12 ', a locking bush 11' is arranged to be longitudinally displaceable, which engages with a longitudinal wedge 19 'in the longitudinal groove 20' and is thereby secured against rotation.

In Vorschubrichtung hinter der Gewindemutter 12' ist eine Verstellhülse 18' verschiebbar und drehbar auf dem Aufnahmeschaft 21' bzw. auf dem dazugehörigen Gewindeteil 14' gelagert. In Vorschubrichtung hinter der Verstellhülse 18' und in einem Abstand dazu ist auf dem Aufnahmeschaft 21' ein Sprengring 6' mit einer davor angeordneten Anschlagscheibe 7' vorgesehen. Zwischen Verstellhülse 18' und Anschlagscheibe 7' ist eine Druckfeder 29 angeordnet.In the feed direction behind the threaded nut 12 ', an adjusting sleeve 18' is slidably and rotatably mounted on the receiving shaft 21 'or on the associated threaded part 14'. In the advancing direction behind the adjusting sleeve 18 'and at a distance from it, a snap ring 6' with a stop disk 7 'arranged in front of it is provided on the receiving shaft 21'. A compression spring 29 is arranged between the adjusting sleeve 18 'and the stop disk 7'.

Die Verstellhülse 18' weist mindestens einen sich axial erstreckenden Stift 17' auf, der durch eine entsprechende Längsbohrung in der Gewindemutter 12' hindurchgeht und auf der anderen Seite der Gewindemutter 12' in eine von mehreren gleichmäßig am Umfang verteilt angeordneten Längsbohrungen 15' der Sperrbüchse 11' eingreift. Mittels dieses Stiftes 17' sind somit die Verstellhülse 18', die Gewindemutter 12' und die Sperrbüchse 11' miteinander verbunden, wobei der Längskeil 19' in dem beschriebenen Zustand dafür sorgt, daß sich die genannten drei Teile nicht rund drehen können, wobei gleichzeitig das Gewinde der Gewindemutter 12' dafür sorgt, daß sich mindestens die Gewindemutter 12' nicht axial verschieben kann. Somit ist eine sichere Arretierung der Gewindemutter 12' in der einmal eingestellten Lage erreicht. Die Druckfeder 29 sorgt hierbei dafür, daß die Verstellhülse 18' immer an der Rückseite der Gewindemutter 12' anliegt. Für eine entsprechende Anlage der Sperrbüchse 11' auf der anderen Seite der Gewindemutter 12' sorgt die Spiraldruckfeder 8'. Auch bei der vorbeschriebenen Konstruktion sind die Glattwalzrollen 1' in geeigneter und an sich bekannter Weise in einem diese separierenden Käfig 3' geführt, der beispielsweise über eine Stiftschraube 4' mit einem ebenfalls axial verschieblichen Teil 5' verbunden ist, weiches sich über einen Kragen 25' an einem Axiallager 10' in ebenfalls an sich bekannter Weise abstützt. Eine Feder 9' sorgt hierbei für die notwendige Anlage und für die freie Beweglichkeit der Glattwalzrollen 1' in axialer Richtung während des Rückzugs des Werkzeuges. Auch diese Konstruktion ist an sich bekannt.The adjusting sleeve 18 'has at least one axially extending pin 17' which passes through a corresponding longitudinal bore in the threaded nut 12 'and on the other side of the threaded nut 12' in one of a plurality of longitudinal bores 15 'of the locking sleeve 11 which are evenly distributed around the circumference 'intervenes. By means of this pin 17 ', the adjusting sleeve 18', the threaded nut 12 'and the locking bush 11' are connected to one another, the longitudinal wedge 19 'in the described state ensuring that the three parts mentioned cannot rotate round, at the same time the Thread of the threaded nut 12 'ensures that at least the threaded nut 12' cannot move axially. A secure locking of the threaded nut 12 'in the position once set is thus achieved. The compression spring 29 ensures that the adjusting sleeve 18 ' always bears against the back of the threaded nut 12 '. The spiral compression spring 8 'ensures that the locking bush 11' is correspondingly positioned on the other side of the threaded nut 12 '. Also in the construction described above, the smooth rolling rolls 1 'are guided in a suitable and known manner in a cage 3' separating them, which is connected, for example via a stud screw 4 ', to a likewise axially displaceable part 5', which extends via a collar 25 'on an axial bearing 10' in a manner known per se. A spring 9 'ensures the necessary contact and the free movement of the smooth rolling rolls 1' in the axial direction during the retraction of the tool. This construction is also known per se.

Zur Durchmesserverstellung des Werkzeuges nach Figur 2 muß die Verstellhülse 18' gegen die Kraft der Druckfeder 29 in Richtung des Pfeiles 26 um den Betrag 22' zurückgezogen werden, damit eine Trennung von der Sperrbüchse 11' erfolgt. In der genannten Rückzugslage kann nunmehr die Verstellhülse 18' zur Durchführung der Durchmesserverstellung rundgedreht werden und nimmt dabei über die noch immer über den Stift 17' bestehende formschlüssige Verbindung die Gewindemutter 12' mit, wodurch die erforderliche Verstellung bewirkt wird. Ist die gewünschte Verstellage erreicht, muß die Verstellhülse 18' nur losgelassen werden, so daß sie von der Druckfeder 29 gedrängt, über die Spitze mindestens eines Stiftes 17', in eine entsprechende passende Bohrung 15' der Sperrbüchse 11' eingreift und damit die sichere Arretierung wieder herstellt.To adjust the diameter of the tool according to FIG. 2, the adjusting sleeve 18 'must be withdrawn by the amount 22' against the force of the compression spring 29 in the direction of the arrow 26, so that a separation from the locking bush 11 'takes place. In the retracted position mentioned, the adjusting sleeve 18 'can now be rotated round to carry out the diameter adjustment and takes the threaded nut 12' with it via the positive connection still existing via the pin 17 ', whereby the required adjustment is effected. Once the desired adjustment position has been reached, the adjustment sleeve 18 'only has to be released so that it is pushed by the compression spring 29, engages in a corresponding suitable bore 15' of the locking bush 11 'via the tip of at least one pin 17' and thus the secure locking restores.

Liste der verwendeten BezugszeichenList of the reference symbols used

  • 1, l' Glattwalzrollen1, l 'smooth rolling rolls
  • 2, 2' Stützkegel2, 2 'support cone
  • 3, 3' Käfig3, 3 'cage
  • 4, 4' Stiftschrauben4, 4 'studs
  • 5, 5' axial verschiebliches Teil5, 5 'axially displaceable part
  • 6.6' Sprengring6.6 'Snap ring
  • 7, 7' Anschlagscheibe7, 7 'stop disc
  • 8, 8' Feder8, 8 'spring
  • 9, 9' Feder9, 9 'spring
  • 10, 10' Axiallager10, 10 'thrust bearing
  • 11, 11' Sperrbüchse11, 11 'pawl
  • 12,12' Gewindemutter12.12 'threaded nut
  • 13 Anschlagkragen13 stop collar
  • 14,14' Gewindeteil14.14 'threaded part
  • 15 Längsnut15 longitudinal groove
  • 15' Bohrung15 'hole
  • 16 Längsnut16 longitudinal groove
  • 17 Längskeil17 longitudinal wedge
  • 17' Stift17 'pen
  • 18, 18' Verstellhülse18, 18 'adjustment sleeve
  • 19,19' Längskeil19.19 'wedge
  • 20, 20' Längsnut20, 20 'longitudinal groove
  • 21, 21' Aufnahmeschaft21, 21 'receiving shaft
  • 22, 22' Betrag22, 22 'amount
  • 23 Schaft23 shaft
  • 24 Bohrung24 hole
  • 25, 25' Kragen25, 25 'collar
  • 26 Pfeil26 arrow
  • 27 Pfeil27 arrow
  • 28 Flansch28 flange
  • 29 Druckfeder29 compression spring

Claims (7)

1. A rolling tool for planishing cylindrical surfaces with planishing rollers (1, 1') which bear against a support cone (2, 2') in planetary fashion and which are separated by a cage (3, 3') arranged coaxially with the support cone, whereby the support cone (2, 2') and the cage (3, 3') are arranged rotable relative to each other and relatively axially displaceable, and whereby at least one axially displaceable part of the cone (5, 5') is supported in a direction opposite to the feed direction of the tool on a threaded nut (12, 12') arranged on the threaded slotted portion (14, 14') of a mandrel (21, 21'), the nut being positively connected with an adjusting sleeve (18, 18') coaxial with the shank (23) via driver elements, whereby a latch socket (11.11') is further provided with an inner bore in which a spline (19, 19') is arranged which engages in the longitudinal slot (20, 20') of the threaded part (14, 14') of the mandrel (21, 21'), and whereby the adjusting sleeve (18, 18') is axially displaceable by at least an amount such that a disengagement results, characterized in that the latch socket (11, 11') is arranged in the direction of feed before the threaded nut (12, 12') and has several seating areas (15, 15') for the positively acting driver elements (17, 17') of the adjusting sleeve in circumferential direction.
2. Tool according to claim 1 for the machining of bores, characterized in that an axial bearing (10) is arranged between the axially displaceable part (5) and the latch socket (11).
3. Tool according to claim 1, characterized in that a coil compression spring (8, 8') is provided in the direction of feed before the latch socket (11, 11') which presses the latch socket (11, 11') against the threaded nut (12, 12') directly or via displaceable elements lying in between.
4. Tool according to at least one of the claims 1 and 2, characterized in that the adjusting sleeve (18) has, arranged before the threaded nut (12), at least one axially acting compression spring (8) which takes support, on the one hand, on the adjusting sleeve (18) and, on the other hand, on the threaded nut (12) or on such structural parts (10, 11) as are supported by the threaded nut (12), whereby the adjusting sleeve (18) is held in abutment on the other side of the threaded nut (12) by the compression spring (8) by way of an abutment collar (13).
5, Tool at least according to claim 4, characterized in that the spring (9) acts simultaneously on the axially displaceable part (5) and on the adjusting sleeve (18).
6. Tool according to at least one of the claims 1 to 4, characterized in that at least the longitudinal slots (15, 16) at the outer circumference of the latch socket (11) and threaded nut (12) and the appertaining longitudinal spline (17) of the adjusting sleeve (18) are formed as external spurs and, for the threaded nut (12) and adjusting sleeve (18), as tooth gap and corresponding tooth.
7. Tool according to at least one of the claims 1 to 6, characterized in that the latch socket (11'). threaded nut (12') and adjusting sleeve (18') can be connected together positively through corresponding longitudinal bores by way of at least one axial pin (17'), whereby the latch socket (11') has several corresponding longitudinal bores (15') distributed in circumferential direction.
EP83112460A 1983-07-07 1983-12-10 Rolling tool Expired EP0131069B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3324494A DE3324494C1 (en) 1983-07-07 1983-07-07 Rolling tool
DE3324494 1983-07-07

Publications (3)

Publication Number Publication Date
EP0131069A2 EP0131069A2 (en) 1985-01-16
EP0131069A3 EP0131069A3 (en) 1985-07-10
EP0131069B1 true EP0131069B1 (en) 1988-05-04

Family

ID=6203385

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112460A Expired EP0131069B1 (en) 1983-07-07 1983-12-10 Rolling tool

Country Status (3)

Country Link
US (1) US4542565A (en)
EP (1) EP0131069B1 (en)
DE (2) DE3324494C1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2791924B2 (en) * 1991-05-24 1998-08-27 松下電器産業株式会社 Sleeve bearing processing method
JP3809060B2 (en) * 2000-10-24 2006-08-16 株式会社スギノマシン Roller burnishing tool
JP4051054B2 (en) * 2004-07-16 2008-02-20 株式会社スギノマシン Roller burnishing tool for corner R surface machining
CN101774142A (en) * 2010-03-03 2010-07-14 合肥车桥有限责任公司 Small-hole grinding tool for correcting hole diameter
JP4939622B2 (en) * 2010-03-24 2012-05-30 株式会社スギノマシン Peening tool and processing method
JP5221635B2 (en) * 2010-12-27 2013-06-26 株式会社スギノマシン Dimple forming burnishing tool
CN102922408A (en) * 2012-10-09 2013-02-13 中船澄西船舶修造有限公司 Lathe tailstock hole grinding fixture
JP6173977B2 (en) * 2014-06-24 2017-08-02 株式会社スギノマシン Roller burnishing tool
JP5945316B2 (en) * 2014-12-05 2016-07-05 株式会社スギノマシン Composite machining tool and machining method using the same
DE102018117739A1 (en) * 2018-07-23 2020-01-23 Komet Deutschland Gmbh roller burnishing tool
RU192435U1 (en) * 2019-04-16 2019-09-17 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) DEVICE FOR STRENGTHENING OF PLANE SURFACES OF PARTS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3320652A (en) * 1965-10-23 1967-05-23 Cogsdill Tool Prod Burnishing tool
US3555643A (en) * 1968-11-19 1971-01-19 Madison Ind Inc Roller burnishing tool
US3626560A (en) * 1970-06-04 1971-12-14 Cogsdill Tool Prod Sizing and finishing device for external surfaces
US3835517A (en) * 1973-10-19 1974-09-17 Cogsdill Tool Prod Burnishing tools for interior and exterior surfaces
DE3047183A1 (en) * 1980-12-15 1982-07-29 Fratelli Massarenti Elidio & Ottavio s.n.c., Lugo, Ravenna Metal cylindrical bore smoothing tool - has rotary axially adjustable cage with conical rollers engaging bore wall and rolling on fixed cone

Also Published As

Publication number Publication date
EP0131069A3 (en) 1985-07-10
EP0131069A2 (en) 1985-01-16
DE3376474D1 (en) 1988-06-09
DE3324494C1 (en) 1984-10-25
US4542565A (en) 1985-09-24

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