EP2353749B1 - Tangential thread-rolling head - Google Patents

Tangential thread-rolling head Download PDF

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Publication number
EP2353749B1
EP2353749B1 EP11000858A EP11000858A EP2353749B1 EP 2353749 B1 EP2353749 B1 EP 2353749B1 EP 11000858 A EP11000858 A EP 11000858A EP 11000858 A EP11000858 A EP 11000858A EP 2353749 B1 EP2353749 B1 EP 2353749B1
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EP
European Patent Office
Prior art keywords
roller
thread
adjusting
lateral
tool according
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EP11000858A
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German (de)
French (fr)
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EP2353749A2 (en
EP2353749A3 (en
Inventor
Jürgen Wiehler
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Wagner Werkzeugsysteme Mueller GmbH
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Wagner Werkzeugsysteme Mueller GmbH
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Publication of EP2353749A2 publication Critical patent/EP2353749A2/en
Publication of EP2353749A3 publication Critical patent/EP2353749A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/04—Making by means of profiled-rolls or die rolls
    • B21H3/042—Thread-rolling heads
    • B21H3/048—Thread-rolling heads working tangentially

Definitions

  • the invention relates to a sorollwerkmaschine, or tangential rolling tool for cold rolling threads, with rolling head arms on the one hand are pivotally mounted and on the other hand, have installed between the free ends of the rolling head arms, each having a freely rotatably mounted thread roller, the two threaded rollers not driven gears, timing belts or the like. Geared to each other are coupled and the thread rolls are interchangeably mounted on roller bolts, within the free ends of the rolling head arms, mounted so that the axial play of the thread rollers against the lateral contact surfaces by means of rotatable adjusting sleeves is adjustable.
  • bushings which abut respectively on a pinion for the thread rollers, on the circumference have a fine thread portion which cooperates with an internally threaded portion in a receiving bore for pinion and bushing.
  • the bushings can thus be done an adjustment of pinion and thread roller to the axial play 'zero'. From this 'zero' position, the socket is turned back and engage by means of clamping screws in the transverse grooves, next to the fine thread of the bushing on the outer diameter and allow locking of the socket in this setting position. As disclosed in the patent, is to achieve a max.
  • adjustable clearance of 0.05 mm requires a fine pitch 0.5 mm pitch in conjunction with 10 circumferentially spaced grooves. In the disclosed construction, therefore, a basic pitch of 0.05 mm for the deliberately adjustable game change is given.
  • This value of 0.05 mm is experience, but already a max. permissible limit value in the production of rolled fine threads which can be exceeded by wear of the contact surfaces during operation after adjustment.
  • experience has shown that a minimum clearance of 0.02 mm is required in order to achieve a free turning of the thread rolls, so that in the unfavorable case a new clearance of just under 0.07 mm is already present at the setting before the start of production Production use can further increase even more unfavorable values.
  • the locking of the adjusting bushing over the transverse grooves which are not visible to the adjuster, requires special care and iterative procedure during the screwing-in attempt in order to avoid damage in the region of engagement of the clamping screws in the edge region of the transverse grooves.
  • the actually set axial play is not readily apparent.
  • such threads have a high tendency to seizure, which is increasingly provoked in the present application by chips and thus contaminated coolant accumulation.
  • the production costs are high and the parts handling more complex because the fine thread tips are very sensitive to impact.
  • the invention is therefore based on the object sorollwerkmaschinee of the type described so that the axial play of thread rolls, with increments smaller than 0.05 mm, is easily adjustable, while avoiding the disadvantages of previous solutions.
  • the side roller tool according to the invention is characterized in that by means of a rotatable adjusting sleeve with one or more axially arranged on one side spiral surface sections, with their support against fixed points of the same number in Rollkopfarm, the axial distance of the contact surfaces for the thread rolls is changeable.
  • the fixed points are designed with cylindrical pins that are firmly connected without play with the Rollkopfarm, resulting in a simplified and thus cost-effective structure.
  • the adjusting sleeve is in its adjustment rotation range with a radially extending opening, preferably in the form of a radial bore, following the spiral surfaces and rotated by 90 °, and parallel to the roller end face for Rollenachsenbohrung broken.
  • the determination of the adjusting sleeve via at least one screw, the radial passage hole, pressing on the roller bearing axis on the opposite side of the adjusting sleeve is clamping, this allows a stepless, reliable repeatable and feedback-free backup of the setting position in each angular position.
  • a side roller tool 1 for example, the WAGNER, as in Fig. 1 shown, consists of a housing 1.1 , pivotally mounted therein four Rollkopfarmen from the two front, so-called. Gear arms 2.1 and 2.2 and the two rear, arranged parallel thereto, simple pivot arms 3.1 and 3.2 (not visible) exist. On the one hand, the rolling head arms 2.1 and 3.1 are mounted on the bearing pin 4.1 and the rolling head arms 2.2 and 3.2 on the bearing pin 4.2 in the housing 1.1 and thus pivotable about these 'fixed points'.
  • a first thread roller 5.1 is located between the gear or swivel arm 2.1 or 3.1 and a second thread roller 5.2 between the gear or swivel 2.2 and 3.2.
  • the threaded rollers 5.1 and 5.2 are mounted on the roller bolts 6.1 and 6.2, respectively .
  • the storage of the thread roller 5.1 by means of the roller bolt 6.1 between the free ends of the gear arm 2.1 and the swing arm 3.1 , visible. Accordingly, in the region of the gear arm 2.1, the thread roller 5.1 via a lateral claw connection 5.11 (visible in FIG Fig. 1 ) with a first end gear 30.1 positive fit , but axially displaceable, coupled.
  • the spur gear 30.1 abuts axially against an axial ball bearing 21 .
  • the purpose bearing 21 is axially supported by the adjusting 40th
  • the function and installation situation of the adjusting sleeve 40 is in a later paragraph to Fig. 4 described.
  • the thread roller 5.1 can create the axial ball bearing 23 axially.
  • the thrust ball bearings 21 and 23 and thrust washers of lubricious material can be used.
  • the roller bolt 6.1 is fixed and is clamped on the one hand by the clamping screw 24.1 against its bearing bore 25 in the pivot lever 3.1 and on the other hand within the gear arm 2.1 by the clamping screw 24.2 , the radial bore 45 in the adjusting bushing 40 , against the Einstellbuchsenbohrung 27 and thus the adjusting sleeve 40 against the bearing bore 28 in the gear arm 2.1 also braced.
  • Thread roller 5.1 and spur gear 30.1 are easily rotatable on the roller pin 6.1 .
  • a functional extension shows the Fig. 2a in a partial section of the roller pin bearing in the pivot arm 3.1 .
  • a second recess 22 closes at the outer diameter is smaller than the outer diameter of the thrust ball bearing 23rd
  • an elastic member 26 with a defined spring characteristic, as a metal spring or of a soft elastic material which exerts a resilient restoring force on the thrust ball bearing 23 .
  • the bearing arrangement of the thread roller 5.2 is equal to the arrangement of the roller 5.1 shown , so that the description is also valid for this.
  • Fig. 3 shows a gear arm 2.1 or 2.2 alone as an assembly.
  • the following description is made by way of example for the gear arm 2.1 , but is also valid in the same way for the second gear arm 2.2 .
  • the adjusting tube 40 is inserted from the transmission side in the base body 31 in a correspondingly made for the stepped bore, as well as from Fig. 2 seen.
  • the adjusting sleeve 40 is equipped with a collar 41 which simultaneously represents their largest outer diameter. Fixed in the body is at least one cylindrical pin 33 of a lateral stop on the collar 41 allows but not on the second, smaller outer diameter 42 of the adjusting sleeve 40 is seated.
  • the collar 41 has an end-to-end, flat annular surface 40.1 at the end face towards the axial ball bearing 21 , the annular surface is interrupted on the opposite side on the collar 41 by one or more spirally machined surfaces 43 which can extend up to the diameter 42 in the inner diameter.
  • the circumferential length of the spiral surface portion 43 corresponds to a usable angular rotation range in the adjustment process and the angle formed by the spiral shape, in the circumference to the continuous, flat annular surface 40.1 , in the difference of the waistband of federal government 41 , the max. possible correction dimension during the adjustment process.
  • the number of cylindrical pins 33 also depends because they represent the support points of the spiral surfaces 43 .
  • a radial bore hole 45 pierces the diameter 42 to the free interior of the adjusting sleeve 40, wherein position and length is determined in accordance with the angular rotation range and the position of the clamping screw 24.2 .
  • the front side of the small diameter 42 are two opposing grooves 47th In Fig. 5 is proposed a possible adjustment tool 50 whose pins 51 engage in the adjustment 47 in the grooves 47 .
  • the simplified sequence and the functions according to the invention in the game setting, for example, when installing a new thread roller 5.1 will be explained in more detail below: Before the thread roll change of the roller pin 6.1 as far to the right ( Fig.
  • the adjusting bushing 40 can be rotated - during the rotation, the spiral surfaces 43 slide along the stationary cylinder pins 33 , or a spiral surface 43 on a cylinder pin 33 , depending on the direction of rotation increases or decreases the distance between the flat annular surface 40.1 of the adjusting sleeve 40 and the facing axial bearing surface of the axial ball bearing 21st

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Rolling Contact Bearings (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Description

Die Erfindung betrifft ein Seitenrollwerkzeug, oder auch Tangential-Rollwerkzeug, zum Kaltwalzen von Gewinden, mit Rollkopfarmen die einerseits schwenkbar gelagert sind und die andererseits, zwischen den freien Enden der Rollkopfarme, jeweils eine frei drehbar gelagerte Gewinderolle eingebaut haben, wobei die beiden Gewinderollen über nicht angetriebene Zahnräder, Zahnriemen oder dgl. getrieblich miteinander gekoppelt sind und die Gewinderollen austauschbar auf Rollenbolzen, innerhalb der freien Enden der Rollkopfarme, so gelagert sind, dass das axiale Spiel der Gewinderollen gegenüber deren seitlichen Anlageflächen mittels drehbarer Einstellhülsen einstellbar ist.The invention relates to a Seitenrollwerkzeug, or tangential rolling tool for cold rolling threads, with rolling head arms on the one hand are pivotally mounted and on the other hand, have installed between the free ends of the rolling head arms, each having a freely rotatably mounted thread roller, the two threaded rollers not driven gears, timing belts or the like. Geared to each other are coupled and the thread rolls are interchangeably mounted on roller bolts, within the free ends of the rolling head arms, mounted so that the axial play of the thread rollers against the lateral contact surfaces by means of rotatable adjusting sleeves is adjustable.

Aufgrund der großen Vorteile, wie kurze Gewindefertigungszeit, hohe Gewindefestigkeit durch Kaltverfestigung mit kontinuierlichem Faserverlauf, hohe Oberflächengüte der Gewindeflanken und konstant hohe Qualitätsgüte, besonders auch bei Großserienfertigung, hat sich die Fertigungstechnik des Gewinderollens fest etabliert und besitzt einen hohen Stellenwert bei der Anwendung in programmierbaren Werkzeugmaschinen aller Bauarten.
Das Fertigen von Gewinden mit Gewinderollwerkzeugen ist z.B. in der DE 93 12 116 U1 detailliert beschrieben und der allgemeine Stand der Technik von Rollwerkzeugen ist heutzutage in den Internetauftritten bekannter Werkzeughersteller ausführlich dokumentiert, wie z.B. beim Anmelder dieser Erfindung unter der Internetadresse www.wagner-werkzeuge.de unter der Rubrik 'Werkzeuge' die wählbaren Kapitel, insbesondere zum Gewinderollen.

Weiterhin ist unter 'Service' unter einer Vielzahl von Betriebsanleitungen auch die 'Anleitung Seitenrollwerkzeuge' als PDF-Download abrufbar. Seitenrollwerkzeuge sind allgemein so konstruiert, dass sie für unterschiedliche Gewinde umrüst- und einstellbar sind d.h. , dass die das Gewinde erzeugenden, sehr harten Gewinderollen im Rahmen des dafür ausgelegten Einsatzbereichs des Werkzeugs austauschbar sind. Ebenso ist nach Standzeit-Ende eines Gewinderollensatzes der Austausch gegen einen neuen, baugleichen Gewinderollensatz möglich. Die Vorgehensweise bei den Montagearbeiten für den Gewinderollenwechsel ist u.a. in der o.g. Firmen-PDF beschrieben, daraus geht hervor, dass es sehr wichtig ist das seitliche Spiel zwischen der Gewinderolle und mit ihr verbundener Bauteile, wie z.B. das Antriebzahnrad an den Anlageflächen an bzw. innerhalb der Lager- bzw. Getriebearme sehr gering zu halten, um die Qualität der damit gerollten Gewinde nicht durch zu großes Spiel zu gefährden. Aufgrund der Vielzahl an Teilen, die auch noch aus unterschiedlichsten Fertigungszeiten stammen können, ist erkennbar, dass eine noch wirtschaftlich vertretbare Tolerierung der Einzelteile, in der aus der Summe der Einzeltoleranzen sich ergebenden Gesamttoleranz, die engen Grenzen der geforderten Sollspielgröße überschreiten kann und somit eine Ausgleichsmöglichkeit vorgesehen sein muss. Ebenso ist durch Verschleiß eine Veränderung des Axialspiels zu größeren und dann für die Fertigungsqualität schädlichen Werten möglich. Auf Seite 40 der erwähnten Anleitung ist ein individueller Ausgleich der IST-Summentoleranz mittels Distanzscheiben beschrieben, um das SOLL-Spiel herzustellen. Dieser Arbeitsvorgang zählt in der Ermittlung der Herstellkosten, der mit dem Gewinde zu versehenden Teile, zu den Rüstkosten und belastet somit die Gesamtkosten nicht unerheblich und ist auch abhängig von der Erfahrung und Geschicklichkeit des damit betrauten Mitarbeiters. Spielvergrößerungen aufgrund Verschleiß während einer laufenden Serienfertigung, z.B. erkennbar durch zunehmende Verschlechterung der Qualität der gerollten Gewinde, erfordern den Ausbau, Reinigung und Anpassung neuer Distanzscheiben entspr. dem beschriebenen Verfahren bei gleichzeitigem Stillstand der Produktion wodurch die Herstellkosten zusätzlich erhöht bzw. der Ertrag gemindert wird.Because of the great advantages, such as short threading time, high thread strength through work hardening with continuous fiber flow, high surface quality of the thread flanks and consistently high quality, especially in mass production, the manufacturing technology of thread rolling has become firmly established and has a high priority for use in programmable machine tools of all types.
The manufacture of threads with thread rolling tools is eg in the DE 93 12 116 U1 described in detail and the general state of the art of rolling tools is now extensively documented in the websites of well-known tool manufacturers, such as the applicant of this invention under the Internet address www.wagner-werkzeuge.de under the heading 'tools' the selectable chapter, especially for thread rolling.

Furthermore, under 'Service' under a variety of manuals also the 'Instructions Seitenrollwerkzeuge ' as PDF download available. Side roller tools are generally designed to be re-tooled and adjustable for different threads, ie, the thread-forming very hard thread rolls are interchangeable within the scope of the tool's intended use are. Likewise, after the end of the service life of a set of threaded rollers, replacement with a new, identical threaded roller set is possible. The procedure in the assembly work for the thread roll change is described, inter alia, in the above-mentioned company PDF, it is clear that it is very important the lateral clearance between the thread roller and related components, such as the drive gear on the contact surfaces or inside to keep the bearing or gear arms very low, so as not to jeopardize the quality of the thread rolled with it due to excessive play. Due to the large number of parts, which may also come from very different production times, it can be seen that a still economically acceptable tolerancing of the individual parts, in the total tolerance resulting from the sum of the individual tolerances, can exceed the narrow limits of the required target game size and thus a compensation possibility must be provided. Likewise, a change in the axial clearance to larger and then harmful to the manufacturing quality values is possible by wear. On page 40 of the mentioned manual, an individual compensation of the actual sum tolerance by means of spacers is described in order to produce the TARGET game. This process counts in the determination of the manufacturing costs, the parts to be threaded, the set-up costs and thus burdened the overall costs and is also dependent on the experience and skill of the entrusted employee. Game enlargements due to wear during an ongoing series production, eg recognizable by increasing deterioration of the quality of the rolled thread, require the expansion, cleaning and adjustment of new spacers entspr. The method described with simultaneous stoppage of production whereby the manufacturing costs are further increased or the yield is reduced.

Es ist also wünschenswert und vorteilhaft das Verfahren der Axial-Spieleinstellung der Gewinderollen bei Seitenrollwerkzeugen so zu verbessern, dass die genannten Kostennachteile minimiert werden.It is therefore desirable and advantageous to improve the method of axial clearance adjustment of the thread rolls in side rolling tools so that the mentioned cost disadvantages are minimized.

Mit der DE 10 2004 006 125 B3 , welche die Basis für den Oberbegriff des Anspruchs 1 bildet, wird vorgeschlagen, dass Buchsen, die jeweils an einem Ritzel für die Gewinderollen anliegen, am Umfang einen Feingewindeabschnitt aufweisen der mit einem Innengewindeabschnitt in einer Aufnahmebohrung für Ritzel und Buchse zusammenwirkt. Mit Hilfe der Buchsen kann somit eine Verstellung von Ritzel und Gewinderolle bis zum Axialspiel 'Null' erfolgen. Aus dieser 'Null'-Position wird die Buchse zurückgedreht und mittels Klemmschrauben die in Quer-Nuten, neben dem Feingewinde der Buchse am Außendurchmesser, eingreifen und eine Verriegelung der Buchse in dieser Einstellposition ermöglichen. Wie in der Patentschrift offenbart, ist zur Erreichung eines max. einstellbaren Spiels von 0,05 mm ein Feingewinde mit der Steigung 0,5 mm im Zusammenwirken mit 10 auf dem Umfang verteilten Nuten erforderlich.
Bei der offenbarten Konstruktion ist also eine Grundteilung von 0,05 mm für die bewusst einstellbare Spielveränderung vorgegeben. Dieser Wert von 0,05 mm ist erfahrungsgemäß aber bereits ein max. zulässiger Grenzwert bei der Herstellung von gerollten Feingewinden der durch Verschleiß der Anlageflächen im Betrieb nach der Einstellung überschritten werden kann. Demgegenüber ist erfahrungsgemäß aber auch ein Mindestspiel von 0,02 mm erforderlich, um ein freies Drehen der Gewinderollen zu erreichen, so dass im ungünstigen Fall bereits bei der Einstellung vor Fertigungsbeginn ein Neu-Spiel von knapp 0,07 mm vorhanden ist das sich im anschließenden Fertigungseinsatz weiter zu noch ungünstigeren Werten hin vergrößern kann. Die Verriegelung der Einstellbuchse über die für den Einsteller nicht sichtbaren Quernuten erfordern besondere Sorgfalt und iteratives Vorgehen beim Einschraubversuch, um im Bereich des Eingriffs der Klemmschrauben im Kantenbereich der Quernuten Beschädigungen zu vermeiden. Das tatsächlich eingestellte Axialspiel ist ohne Weiteres nicht erkennbar. Das bei dieser Konstruktion einer Axial-Feineinstellung notwendige Feingewinde mit einer Steigung von 0,5 mm ist in seinen Gebrauchseigenschaften als kritisch zu beurteilen. Das verdeutlicht besonders die sich aus der Steigung eines ISO-Feingewindes ergebende Gewindehöhe aus h3 = 0,61343 x 0,5 = 0,3067 mm. Wie allgemein bekannt, haben solche Gewinde eine hohe Fressneigung was beim vorliegenden Einsatzfall durch Späne- und damit verunreinigtem Kühlmittelanfall verstärkt provoziert wird. Außerdem sind die Herstellkosten hoch und das Teilehandling aufwendiger da die feinen Gewindespitzen sehr schlagempfindlich sind.With the DE 10 2004 006 125 B3 which forms the basis for the preamble of claim 1, it is proposed that bushings, which abut respectively on a pinion for the thread rollers, on the circumference have a fine thread portion which cooperates with an internally threaded portion in a receiving bore for pinion and bushing. With the help of the bushings can thus be done an adjustment of pinion and thread roller to the axial play 'zero'. From this 'zero' position, the socket is turned back and engage by means of clamping screws in the transverse grooves, next to the fine thread of the bushing on the outer diameter and allow locking of the socket in this setting position. As disclosed in the patent, is to achieve a max. adjustable clearance of 0.05 mm requires a fine pitch 0.5 mm pitch in conjunction with 10 circumferentially spaced grooves.
In the disclosed construction, therefore, a basic pitch of 0.05 mm for the deliberately adjustable game change is given. This value of 0.05 mm is experience, but already a max. permissible limit value in the production of rolled fine threads which can be exceeded by wear of the contact surfaces during operation after adjustment. In contrast, experience has shown that a minimum clearance of 0.02 mm is required in order to achieve a free turning of the thread rolls, so that in the unfavorable case a new clearance of just under 0.07 mm is already present at the setting before the start of production Production use can further increase even more unfavorable values. The locking of the adjusting bushing over the transverse grooves, which are not visible to the adjuster, requires special care and iterative procedure during the screwing-in attempt in order to avoid damage in the region of engagement of the clamping screws in the edge region of the transverse grooves. The actually set axial play is not readily apparent. The fine thread with a pitch of 0.5 mm, which is necessary in this construction of an axial fine adjustment, is critical in terms of its service properties. This is particularly evident in the thread height resulting from the pitch of an ISO fine thread of h 3 = 0.61343 x 0.5 = 0.3067 mm. As is well known, such threads have a high tendency to seizure, which is increasingly provoked in the present application by chips and thus contaminated coolant accumulation. In addition, the production costs are high and the parts handling more complex because the fine thread tips are very sensitive to impact.

Der Erfindung liegt deshalb die Aufgabe zugrunde, Seitenrollwerkzeuge der beschriebenen Art so weiterzubilden, dass das Axial-Spiel der Gewinderollen , bei Schrittweiten kleiner als 0,05 mm, einfach einstellbar ist, unter Vermeidung der aufgezeigten Nachteile bisheriger Lösungen.The invention is therefore based on the object Seitenrollwerkzeuge of the type described so that the axial play of thread rolls, with increments smaller than 0.05 mm, is easily adjustable, while avoiding the disadvantages of previous solutions.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 s gelöst.This object is achieved by the characterizing features of claim 1 s.

Dementsprechend zeichnet sich das erfindungsgemäße Seitenrollwerkzeug dadurch aus, dass mittels einer drehbaren Einstellhülse mit einem oder mehreren einseitig-axial angeordneten spiralförmigen Flächenabschnitten, mit deren Abstützung gegenüber Festpunkten gleicher Anzahl im Rollkopfarm, der axiale Abstand der Anlageflächen für die Gewinderollen veränderbar ist. Aus dieser erfindungsgemäßen Anordnung ergibt sich, gegenüber dem Stand der Technik, eine wesentlich größere, radiale Eingriffshöhe (bzw. längere Berührungslinie) zwischen dem bewegten Stellorgan und dem feststehenden Gegenlager wodurch Fressneigung und Schmutzempfindlichkeit eliminiert sind.
In weiterer vorteilhafter Ausgestaltung der Erfindung sind die Festpunkte mit Zylinderstiften ausgeführt, die spielfrei fest mit dem Rollkopfarm verbunden sind, wodurch sich ein vereinfachter und dadurch kostengünstiger Aufbau ergibt.Accordingly, the side roller tool according to the invention is characterized in that by means of a rotatable adjusting sleeve with one or more axially arranged on one side spiral surface sections, with their support against fixed points of the same number in Rollkopfarm, the axial distance of the contact surfaces for the thread rolls is changeable. From this arrangement according to the invention results, compared to the prior art, a much larger, radial engagement height (or longer contact line) between the moving actuator and the fixed abutment whereby predisposition and dirt sensitivity are eliminated.
In a further advantageous embodiment of the invention, the fixed points are designed with cylindrical pins that are firmly connected without play with the Rollkopfarm, resulting in a simplified and thus cost-effective structure.

In einer besonders vorteilhaften Weiterbildung der Erfindung ist die Einstellhülse in ihrem Einstell-Drehbereich mit einem radial verlaufenden Durchbruch, vorzugsweise in der Form eines Radiallanglochs, im Anschluss an die Spiralflächen und dazu um 90° gedreht, sowie parallel zur Rollenstirnfläche zur Rollenachsenbohrung hin durchbrochen.
In einer weiteren Ausgestaltung ist vorgesehen, dass die Feststellung der Einstellhülse über mindestens eine Schraube, das Radiallangloch durchgreifend, drückend über die Rollenlagerachse auf der Gegenseite die Einstellhülse klemmend erfolgt, dies erlaubt eine stufenlose, zuverlässig wiederholbare und rückwirkungsfreie Sicherung der Einstellposition in jeder Drehwinkellage.In a particularly advantageous embodiment of the invention, the adjusting sleeve is in its adjustment rotation range with a radially extending opening, preferably in the form of a radial bore, following the spiral surfaces and rotated by 90 °, and parallel to the roller end face for Rollenachsenbohrung broken.
In a further embodiment it is provided that the determination of the adjusting sleeve via at least one screw, the radial passage hole, pressing on the roller bearing axis on the opposite side of the adjusting sleeve is clamping, this allows a stepless, reliable repeatable and feedback-free backup of the setting position in each angular position.

In weiteren Unteransprüchen, sind weitere vorteilhafte Weiterbildungen der Erfindung aufgeführt.In further subclaims, further advantageous developments of the invention are listed.

Mit dieser Erfindung ist das Einstellen des Axialspiel von Gewinderollen in Seitenrollwerkzeugen vereinfacht und mit höherer Präzision möglich, dadurch ergeben sich größerer Verschleißreserven bei gleichzeitiger Verkürzung der Einstellzeit, wodurch die Wirtschaftlichkeit und Betriebssicherheit bei der Serien-Gewindeherstellung mittels Gewinderollen noch weiter verbessert werden.
Weitere Vorteile und Ausführungen der Erfindung ergeben sich aus der Beschreibung und den Zeichnungen. Ebenso können die vorstehend genannten und die noch weiter aufgeführten Merkmale erfindungsgemäß jeweils einzeln für sich oder zu mehreren in beliebigen Kombinationen Verwendung finden. Die gezeigten und beschriebenen Ausführungsformen sind nicht als abschließende Aufzählung zu verstehen, sondern haben vielmehr beispielhaften Charakter für die Schilderung der Erfindung.With this invention, adjusting the axial clearance of thread rollers in side roller tools is simplified and possible with higher precision , resulting in greater wear reserves with simultaneous shortening of the response time, whereby the cost effectiveness and operating reliability of the serial thread preparation are further improved by means of threaded rolls.
Further advantages and embodiments of the invention will become apparent from the description and the drawings. Likewise, the features mentioned above and those listed further in accordance with the invention can each be used individually for themselves or for several in any desired combinations. The embodiments shown and described are not to be understood as exhaustive enumeration, but rather have exemplary character for the description of the invention.

Es zeigen:

Fig. 1
Perspektivische Ansicht eines kompletten Seitenrollwerkzeuges als ein Ausführungsbeispiel der Erfindung.
Fig. 2
Teilschnitt A-A von Fig. 1.
Fig. 2a
Variante zu Fig. 2
Fig. 3
Perspektivische, teiltransparente Darstellung eines Getriebearms mit der Anordnung der erfindungswesentlichen Bauteile.
Fig. 4
Perspektivische Ansicht der drehbaren Einstellhülse.
Fig. 5
Einstellwerkzeug.
Show it:
Fig. 1
Perspective view of a complete page roll tool as an embodiment of the invention.
Fig. 2
Partial section AA of Fig. 1 ,
Fig. 2a
Variant too Fig. 2
Fig. 3
Perspective, partially transparent representation of a gear arm with the arrangement of the invention essential components.
Fig. 4
Perspective view of the rotatable adjusting sleeve.
Fig. 5
Adjusting.

Ein Seitenrollwerkzeug 1, z.B. nach der Bauart WAGNER, wie in Fig. 1 gezeigt, besteht aus einem Gehäuse 1.1, darin schwenkbar gelagerten vier Rollkopfarmen die aus den zwei vorderen, sogen. Getriebearmen 2.1 bzw. 2.2 sowie den zwei hinteren, parallel dazu angeordneten, einfachen Schwenkarmen 3.1 bzw. 3.2 (nicht sichtbar) bestehen. Einerseits sind die Rollkopfarme 2.1 bzw. 3.1 über den Lagerbolzen 4.1 und die Rollkopfarme 2.2 bzw. 3.2 über den Lagerbolzen 4.2 im Gehäuse 1.1 gelagert und somit um diese 'Festpunkte' schwenkbar. Eine erste Gewinderolle 5.1 befindet sich zwischen dem Getriebe- bzw. Schwenkarm 2.1 bzw. 3.1 und eine zweite Gewinderolle 5.2 zwischen dem Getriebe- bzw. Schwenkarm 2.2 bzw. 3.2. Gelagert sind die Gewinderollen 5.1 bzw. 5.2 auf den Rollenbolzen 6.1 bzw. 6.2. Zum Anbau an die CNC-Bearbeitungsmaschine und dem Arbeiten mit Seitenrollwerkzeugen der dargestellten, wie alternativen Bauarten wird auf die für jedermann zugänglichen Informationen der Hersteller verwiesen die auch dem einschlägigen Fachmann bekannt sind.
Mit der Fig. 2 ist vor allem die Lagerung der Gewinderolle 5.1 mittels des Rollenbolzens 6.1, zwischen den freien Enden des Getriebearms 2.1 und des Schwenkarms 3.1, sichtbar. Demnach ist im Bereich des Getriebearms 2.1 die Gewinderolle 5.1 über eine seitliche Klauenverbindung 5.11 (sichtbar in Fig. 1) mit einem ersten Stirn-Zahnrad 30.1 formschlüssig, aber axial verschieblich, gekuppelt. Das Stirn-Zahnrad 30.1 wiederum legt sich axial an ein Axialrillenkugellager 21 an. Auf der Gegenseite des Axialrillenkugellagers 21 wird das Axialrillenkugellager 21 durch die Einstellhülse 40 axial abgestützt. Die Funktion und Einbausituation der Einstellhülse 40 wird in einem später folgenden Absatz zur Fig. 4 beschrieben. Im, gegenüber dem Getriebearm 2.1 angeordneten, Schwenkarm 3.1 kann sich die Gewinderolle 5.1 an das Axialrillenkugellager 23 axial anlegen. Anstelle der Axialrillenkugellager 21 bzw. 23 können auch Anlaufscheiben aus gleitfähigem Werkstoff Verwendung finden.
Der Rollenbolzen 6.1 ist feststehend und wird einerseits durch die Klemmschraube 24.1 gegen seine Lagerbohrung 25 im Schwenkhebel 3.1 verspannt und andererseits innerhalb des Getriebearms 2.1 durch die Klemmschraube 24.2, das Radiallangloch 45 in der Einstellbuchse 40 durchgreifend, gegen die Einstellbuchsenbohrung 27 und damit die Einstellbuchse 40 gegen deren Lagerbohrung 28 im Getriebearm 2.1 ebenfalls verspannt. Gewinderolle 5.1 und Stirn-Zahnrad 30.1 sind auf dem Rollenbolzen 6.1 leichtgängig drehbar.
Eine funktionelle Erweiterung zeigt die Fig. 2a in einem Teilschnitt der Rollenbolzenlagerung im Schwenkarm 3.1. An den Einstich im Schwenkarm 3.1 zur Aufnahme des Axialkugellagers 23 schließt sich ein zweiter Einstich 22 an dessen Außendurchmesser kleiner ist als der Außendurchmesser des Axialkugellagers 23. Innerhalb des Einstichs 22 befindet sich ein elastisches Bauteil 26 mit einer definierten Federkennlinie, als Metallfeder oder aus einem weichelastischen Werkstoff, das eine federnde Rückstellkraft auf das Axialkugellager 23 ausübt.
Die Lageranordnung der Gewinderolle 5.2 ist gleich der gezeigten Anordnung der Rolle 5.1, so dass die Beschreibung auch hierfür gültig ist.A side roller tool 1 , for example, the WAGNER, as in Fig. 1 shown, consists of a housing 1.1 , pivotally mounted therein four Rollkopfarmen from the two front, so-called. Gear arms 2.1 and 2.2 and the two rear, arranged parallel thereto, simple pivot arms 3.1 and 3.2 (not visible) exist. On the one hand, the rolling head arms 2.1 and 3.1 are mounted on the bearing pin 4.1 and the rolling head arms 2.2 and 3.2 on the bearing pin 4.2 in the housing 1.1 and thus pivotable about these 'fixed points'. A first thread roller 5.1 is located between the gear or swivel arm 2.1 or 3.1 and a second thread roller 5.2 between the gear or swivel 2.2 and 3.2. The threaded rollers 5.1 and 5.2 are mounted on the roller bolts 6.1 and 6.2, respectively . For attachment to the CNC processing machine and working with side rollers of the illustrated, such as alternative types, reference is made to the information of the manufacturer, which is also available to the person skilled in the art.
With the Fig. 2 Above all, the storage of the thread roller 5.1 by means of the roller bolt 6.1 , between the free ends of the gear arm 2.1 and the swing arm 3.1 , visible. Accordingly, in the region of the gear arm 2.1, the thread roller 5.1 via a lateral claw connection 5.11 (visible in FIG Fig. 1 ) with a first end gear 30.1 positive fit , but axially displaceable, coupled. The spur gear 30.1, in turn, abuts axially against an axial ball bearing 21 . On the opposite side of the Axialrillenkugellagers 21, the purpose bearing 21 is axially supported by the adjusting 40th The function and installation situation of the adjusting sleeve 40 is in a later paragraph to Fig. 4 described. In, arranged opposite the gear arm 2.1 , 3.1 swivel arm, the thread roller 5.1 can create the axial ball bearing 23 axially. Instead of the thrust ball bearings 21 and 23 and thrust washers of lubricious material can be used.
The roller bolt 6.1 is fixed and is clamped on the one hand by the clamping screw 24.1 against its bearing bore 25 in the pivot lever 3.1 and on the other hand within the gear arm 2.1 by the clamping screw 24.2 , the radial bore 45 in the adjusting bushing 40 , against the Einstellbuchsenbohrung 27 and thus the adjusting sleeve 40 against the bearing bore 28 in the gear arm 2.1 also braced. Thread roller 5.1 and spur gear 30.1 are easily rotatable on the roller pin 6.1 .
A functional extension shows the Fig. 2a in a partial section of the roller pin bearing in the pivot arm 3.1 . At the puncture in the pivot arm 3.1 for receiving the axial ball bearing 23 , a second recess 22 closes at the outer diameter is smaller than the outer diameter of the thrust ball bearing 23rd Within the groove 22 is an elastic member 26 with a defined spring characteristic, as a metal spring or of a soft elastic material which exerts a resilient restoring force on the thrust ball bearing 23 .
The bearing arrangement of the thread roller 5.2 is equal to the arrangement of the roller 5.1 shown , so that the description is also valid for this.

Weitere Details der erfindungsgemäßen Konstruktion sind anhand der Fig. 3 erklärbar, die einen Getriebearm 2.1 oder 2.2 allein als Baugruppe zeigt. Die nachfolgende Beschreibung erfolgt beispielhaft für den Getriebearm 2.1, ist in gleicher Weise aber auch für den zweiten Getriebearm 2.2 gültig. Zur besseren Übersichtlichkeit ohne Lagerbolzen 4.1 bzw. Rollenbolzen 6.1 gezeichnet. Durch die teiltransparente Darstellung ist der darin enthaltene Getriebeanteil des Synchronisierungsgetriebes erkennbar und zwar die miteinander kämmenden StirnZahnräder 30.1, 30.2 und 30.3. die über weitere, nicht sichtbare, Zwischenzahnräder, im Gehäuse 1.1 ebenfalls drehbar gelagert, getrieblich miteinander verbunden sind und den Synchronlauf der Gewinderollen 5.1 und 5.2 zueinander sicherstellen - dies entspricht dem Stand der Technik und ist ebenfalls u.a. auch aus Herstellerunterlagen dem Fachmann bekannt. Die Einstellhülse 40 wird von der Getriebeseite her in den Grundkörper 31 in eine dafür entsprechend gefertigte Stufenbohrung eingeschoben, wie auch aus Fig. 2 ersichtlich. Die Einstellbuchse 40 ist mit einem Bund 41 ausgestattet der gleichzeitig deren größten Außendurchmesser darstellt. Ebenfalls im Grundkörper fest eingebaut ist mindestens ein Zylinderstift 33 der einen seitlichen Anschlag am Bund 41 ermöglicht aber nicht am zweiten, kleineren Außendurchmesser 42 der Einstellbuchse 40 aufsitzt.
In Fig. 4 sind an der, um die Mittelachse um 180° gedrehten, Einstellhülse 40 weitere, erfindungswesentliche Elemente sichtbar. Während der Bund 41 stirnseitig, zum Axialrillenkugellager 21 hin, eine durchgehende, ebene Ringfläche 40.1 besitzt, ist auf der gegenüberliegenden Seite am Bund 41 die Ringfläche durch eine oder mehrere spiralförmig bearbeitete Flächen 43 unterbrochen die im inneren Durchmesser bis zum Durchmesser 42 reichen können. Die Umfangslänge des spiralförmigen Flächenabschnitts 43 entspricht einem nutzbaren Winkel-Drehbereich beim Einstellvorgang und der durch die Spiralform gebildete Winkel, im Umfang zur durchgehenden, ebenen Ringfläche 40.1, in der Differenz der Bundbreite von Bund 41, das max. mögliche Korrekturmaß beim Einstellvorgang. Nach der Anzahl der spiralförmigen Flächen 43 richtet sich dann auch die Anzahl der Zylinderstifte 33 da diese die Abstützpunkte der spiralförmigen Flächen 43 darstellen.Further details of the construction according to the invention are based on Fig. 3 explainable, which shows a gear arm 2.1 or 2.2 alone as an assembly. The following description is made by way of example for the gear arm 2.1 , but is also valid in the same way for the second gear arm 2.2 . For clarity, drawn without bearing pin 4.1 or roller bolt 6.1 . Due to the partially transparent representation of the transmission part of the synchronization transmission contained therein is recognizable and that the intermeshing spur gears 30.1 , 30.2 and 30.3 . the other, not visible, intermediate gears, also rotatably mounted in the housing 1.1 , are geared together and ensure the synchronism of the thread rollers 5.1 and 5.2 to each other - this corresponds to the prior art and is also known inter alia from manufacturer's documents to those skilled. The adjusting tube 40 is inserted from the transmission side in the base body 31 in a correspondingly made for the stepped bore, as well as from Fig. 2 seen. The adjusting sleeve 40 is equipped with a collar 41 which simultaneously represents their largest outer diameter. Fixed in the body is at least one cylindrical pin 33 of a lateral stop on the collar 41 allows but not on the second, smaller outer diameter 42 of the adjusting sleeve 40 is seated.
In Fig. 4 are on the, about the central axis rotated by 180 °, adjusting sleeve 40 more, essential to the invention elements visible. While the collar 41 has an end-to-end, flat annular surface 40.1 at the end face towards the axial ball bearing 21 , the annular surface is interrupted on the opposite side on the collar 41 by one or more spirally machined surfaces 43 which can extend up to the diameter 42 in the inner diameter. The circumferential length of the spiral surface portion 43 corresponds to a usable angular rotation range in the adjustment process and the angle formed by the spiral shape, in the circumference to the continuous, flat annular surface 40.1 , in the difference of the waistband of federal government 41 , the max. possible correction dimension during the adjustment process. After the number of spiral surfaces 43 , then the number of cylindrical pins 33 also depends because they represent the support points of the spiral surfaces 43 .

Ein Radiallangloch 45 durchbricht den Durchmesser 42 zum freien Innenraum der Einstellhülse 40, wobei Position und Länge in Übereinstimmung mit dem Winkel-Drehbereich und der Position der Klemmschraube 24.2 festgelegt ist. Stirnseitig am kleinen Durchmesser 42 befinden sich zwei gegenüberliegende Nuten 47.
In Fig. 5 ist ein mögliches Einstellwerkzeug 50 vorgeschlagen dessen Stifte 51 beim Einstellvorgang in die Nuten 47 eingreifen.
Der vereinfachte Ablauf und die erfindungsgemäßen Funktionen bei der Spieleinstellung, z.B. beim Einbau einer neuen Gewinderolle 5.1, wird nachfolgend näher erläutert: Vor dem Gewinderollenwechsel ist der Rollenbolzen 6.1 soweit nach rechts (Fig. 2) herausgeschoben, dass die Gewinderolle 5.1 in den Freiraum zwischen dem Schwenkarm 3.1 und dem Getriebearm 2.1 eingeführt und dabei mittels der Klauenverbindung 5.11 mit dem Stirn-Zahnrad 30.1 gekuppelt, zentriert und mit dem wieder nach links bündig zurückgeschobenen Rollenbolzen 6.1 gelagert werden kann, der anschließend im Schwenkarm 3.1 mittels der Klemmschraube 24.1 festgeklemmt wird. Anschließend kann mit dem Einstellwerkzeug 50 die Einstellbuchse 40 verdreht werden - bei der Verdrehung gleiten die spiralförmigen Flächen 43 an den feststehenden Zylinderstiften 33 entlang, oder eine spiralförmige Fläche 43 an einem Zylinderstift 33, je nach Drehrichtung vergrößert oder verkleinert sich der Abstand zwischen der ebenen Ringfläche 40.1 der Einstellhülse 40 und der zugewandten axialen Anlagefläche des Axialkugellagers 21.A radial bore hole 45 pierces the diameter 42 to the free interior of the adjusting sleeve 40, wherein position and length is determined in accordance with the angular rotation range and the position of the clamping screw 24.2 . The front side of the small diameter 42 are two opposing grooves 47th
In Fig. 5 is proposed a possible adjustment tool 50 whose pins 51 engage in the adjustment 47 in the grooves 47 .
The simplified sequence and the functions according to the invention in the game setting, for example, when installing a new thread roller 5.1 , will be explained in more detail below: Before the thread roll change of the roller pin 6.1 as far to the right ( Fig. 2 pushed out that the thread roller 5.1 introduced into the space between the pivot arm 3.1 and the gear arm 2.1 while coupled by means of the claw connection 5.11 with the spur gear 30.1 , centered and can be stored with the back pushed back to the left roller pin 6.1 , then is clamped in the swivel arm 3.1 by means of the clamping screw 24.1 . Subsequently , with the adjusting tool 50, the adjusting bushing 40 can be rotated - during the rotation, the spiral surfaces 43 slide along the stationary cylinder pins 33 , or a spiral surface 43 on a cylinder pin 33 , depending on the direction of rotation increases or decreases the distance between the flat annular surface 40.1 of the adjusting sleeve 40 and the facing axial bearing surface of the axial ball bearing 21st

Zur Spieleinstellung wird die Einstellhülse 40 also in Richtung Spielverminderung so weit verdreht bis mit ihr alle axialen Spiele zwischen den einzelnen Bauteilen: Einstellhülse 40, Axialkugellager 21, Stirn-Zahnrad 30.1, Gewinderolle 5.1, Axialkugellager 23 und dessen Anlagefläche an den Schwenkarm 3.1 zu Null werden. Zur Herstellung des gewünschten Spiels genügt es also die Einstellhülse 40 in entgegengesetzter Drehrichtung um einen definierten, geringen Drehwinkel zurückzudrehen, um das dem entsprechende Spielmaß, einzustellen. Beim Sichern der Einstellung der Einstellhülse 40 mittels Festziehen der Klemmschraube 24.2 wird die Gewinderolle 5.1 zur sicheren Herstellung des gewünschten und eingestellten Spiels axial gegen das Stirn-Zahnrad und damit gegen die Einstellhülse 40 gedrückt - das ist nicht notwendig beim Vorhandensein eines elastischen Zusatzelementes 26 nach dem Ausführungsbeispiel entspr. der Fig. 2a und deren Beschreibung.
Wie diese abschließende Beschreibung der Erfindung aufzeigt, ist damit die Aufgabenstellung vollständig gelöst und das Einstellen, wie das durch Verschleiß bedingte Nachstellen, des Axial-Spiels der Gewinderollen bei Seitenrollwerkzeugen ist wesentlich vereinfacht und betriebssicher möglich, wobei geringste Axial-Spiel Einstellwerte ermöglicht werden. Es werden verkürzte Rüstzeiten bei kleineren Einstell-Korrekturintervallen erreicht und dadurch die Wirtschaftlichkeit der Gewindeherstellung mittels Seitenrollwerkzeugen weiter verbessert.To adjust the game setting sleeve 40 is so far in the direction of game reduction twisted until with her all axial games between the individual components: adjusting sleeve 40 , thrust ball bearing 21 , end gear 30.1 , thread roller 5.1 , thrust ball bearing 23 and its contact surface to the pivot arm 3.1 to zero , To produce the desired game so it is sufficient to turn back the adjusting sleeve 40 in the opposite direction of rotation by a defined, small angle of rotation, to adjust the corresponding game dimension. When securing the setting of the adjusting sleeve 40 by tightening the clamping screw 24.2 , the thread roller 5.1 for safe production of the desired and set game axially against the spur gear and thus pressed against the adjusting sleeve 40 - which is not necessary in the presence of an elastic additional element 26 after the Embodiment corresponds to the Fig. 2a and their description.
As this final description of the invention shows, so that the task is completely solved and the setting, such as the adjustment due to wear, the axial play of the thread rolls in Seitenrollwerkzeugen is much simplified and reliable possible, with minimum axial play adjustment values are possible. Shorter set-up times are achieved with smaller adjustment correction intervals, thereby further improving the cost-effectiveness of thread production by means of side roller tools.

Claims (5)

  1. A lateral roller tool (1) or also a tangential roller tool for the cold rolling of threads, with roller head arms (2.1, 3.1; 2.2, 3.2) that on the one hand are pivotably supported and that on the other hand have a freely rotatably supported thread roller (5.1; 5.2) built in between the free ends of the roller head arms, whereby the two thread rollers are coupled to one another in a geared manner by gears, toothed belts or the like that are not driven and whereby the threaded rollers are replaceably supported on roller bolts (6.1; 6.2) inside the free ends of the roller head arms in such a manner that the axial play of the thread rollers can be adjusted relative to their lateral contact surfaces by rotatable adjusting casings, characterized in that the rotatable adjusting casings (40) comprise one or more spiral surface sections (43) axially arranged on one side that are supported against fixed points with the same number in the roller head arm (2.1, 2.2).
  2. The lateral roller tool according to claim 1, characterized in that the fixed points consist of cylindrical pins (33) that are firmly connected without play to the roller head arm (2.1, 2.2).
  3. The lateral roller tool according to claim 2, characterized in that the adjusting casing (40) is perforated in its rotary adjusting area by a radially running opening, preferably in the form of a radial, longitudinal hole (45) following the spiral surfaces (43) and rotated through 90° relative to them, and parallel to the level front surface (40.1) of the adjusting casing (40) toward its axial roller bore.
  4. The lateral roller tool according to claim 3, characterized in that the fixing of the adjustment casing (40) takes place via at least one screw (24.1 and/or 24.2) extending through the radial, longitudinal hole (45) and pressing via the roller support shaft (6.1) and (6.2) on the opposing side of the adjusting casing (40) against its support bore (28) in a clamping manner.
  5. The lateral roller tool according to one of claims 1-4, characterized in that a spring element (26) acting axially on one of the support surfaces exerts variable force only in the area of the residual play in accordance with its spring characteristic.
EP11000858A 2010-02-05 2011-02-03 Tangential thread-rolling head Active EP2353749B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010006959.0A DE102010006959B4 (en) 2010-02-05 2010-02-05 Side rolling attachment

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EP2353749A2 EP2353749A2 (en) 2011-08-10
EP2353749A3 EP2353749A3 (en) 2011-10-05
EP2353749B1 true EP2353749B1 (en) 2013-01-16

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Publication number Priority date Publication date Assignee Title
CN111558677B8 (en) * 2020-04-08 2022-01-28 深圳市欧远建材有限公司 Thread rolling device of straight thread rolling machine for reinforcing steel bars

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781586A (en) * 1955-01-25 1957-02-19 Landis Machine Co Method and apparatus for synchronizing threading rolls
DE9312116U1 (en) 1993-07-14 1993-10-14 Gustav Wagner Maschinenfabrik GmbH & Co KG, 72760 Reutlingen Tangential roller head
DE102004006125B3 (en) 2004-02-07 2005-05-25 Fette Gmbh Tangential thread rolling head comprises a bushing having a fine thread section on its periphery that interacts with an internal thread section in a receiving bore for a pinion and the bushing
DE102005013746B4 (en) * 2004-03-24 2008-12-18 Prokos Produktions-Kontroll-System Gmbh Back corrugated Roll
DE602004008295T2 (en) * 2004-10-27 2008-05-08 Delphi Technologies, Inc., Troy Rotatable haptic for a switch

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EP2353749A2 (en) 2011-08-10
EP2353749A3 (en) 2011-10-05
DE102010006959B4 (en) 2021-04-22
DE102010006959A1 (en) 2011-08-11
ES2402794T3 (en) 2013-05-09

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