EP1046439B1 - Roll for a radial thread rolling head - Google Patents

Roll for a radial thread rolling head Download PDF

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Publication number
EP1046439B1
EP1046439B1 EP00101837A EP00101837A EP1046439B1 EP 1046439 B1 EP1046439 B1 EP 1046439B1 EP 00101837 A EP00101837 A EP 00101837A EP 00101837 A EP00101837 A EP 00101837A EP 1046439 B1 EP1046439 B1 EP 1046439B1
Authority
EP
European Patent Office
Prior art keywords
thread
forming
roll
profile
groove
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 - Lifetime
Application number
EP00101837A
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German (de)
French (fr)
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EP1046439A2 (en
EP1046439A3 (en
Inventor
Andreas Focken
Klaus Oppelt
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.)
Fette GmbH
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Fette GmbH
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Filing date
Publication date
Application filed by Fette GmbH filed Critical Fette GmbH
Publication of EP1046439A2 publication Critical patent/EP1046439A2/en
Publication of EP1046439A3 publication Critical patent/EP1046439A3/en
Application granted granted Critical
Publication of EP1046439B1 publication Critical patent/EP1046439B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00Making helical bodies or bodies having parts of helical shape
    • B21H3/02Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/04Making by means of profiled-rolls or die rolls
    • B21H3/042Thread-rolling heads
    • B21H3/046Thread-rolling heads working radially

Definitions

  • the invention relates to a roller for a radial thread rolling head according to the Preamble of Claim 1. Such is a role in DE-A-2 335 651.
  • the two or three rollers with a thread profile has, these roles are mounted radially adjustable.
  • the thread form profile seen in the circumferential direction a flat, a thread inlet section, a thread calibration section and a thread runout section.
  • the sections mentioned extend over a certain angle.
  • the flattening usually extends over an angle of approximately 40 ° Inlet section over an angle of 160 °, the calibration section over a 90 ° angle and the outlet section over an angle of 70 °.
  • the length of the Calibration section is usually such that it is a multiple of Corresponds to the circumferential length of the workpiece to be shaped.
  • Thread rolls rotated, and a spring mechanism is tensioned, and after completion of the rolling process, a clutch is engaged so that the thread rolling Release the workpiece again.
  • Such a thread rolling head or form rolls for such thread rolling heads are known for example from DE 39 30 131 C1 or Fette company publication “Rollsysteme” become.
  • the rollers usually have a certain axial length. This can be for one given execution of a rolling head can no longer be changed. on the other hand it happens with a number of uses that the thread forming roll only over a limited axial area is used. This area wears out with the Time while the rest of the area remains operational, but because of its location is unused.
  • the invention is therefore based on the object of a form roller for a radial thread rolling head to create the most effective for the formation of short Thread sections is suitable, but allows full utilization.
  • an annular circumferential groove section is formed on the circumference.
  • This groove section does not extend into the flattened area, or it is not required to lead him into this area.
  • a thread form profile molded in that has an opposite pitch has, the flats of the thread form profiles aligned with each other are.
  • this is a thread form profile for a right-hand thread
  • the other thread form profile is also suitable for right-hand threads, if the roll is turned 180 ° in the roll head. It is possible to use identical ones Thread form profile sections to form identical threads in the workpiece.
  • the groove ensures that the workpiece is not with the second shaped profile section engages. Therefore corresponds to another Embodiment of the invention, the width of the groove at least the slope of the Thread form profile plus a certain amount of overflow.
  • the groove should preferably also have a minimum depth that is equal to the height of the profile plus a minimal inlet stroke.
  • the thread forming roller shown in FIGS. 1 to 3 has two thread profile sections on the circumference 10, 12, which are separated from one another by a groove 14.
  • the thread form profile 12 has a flat 16, one approximately 160 ° extending inlet section 18, an approximately 90 ° extending Calibration section 20 and an outlet section extending approximately over 70 ° 22 on.
  • the profile section 10 has a flat 24, an inlet section 26, a calibration section 28 and an outlet section 30. How out 2 and 3, the flats 16, 24 are aligned with each other, and the remaining sections of the shaped profiles are the same, but symmetrical to Center plane, which is spanned by the groove 14.
  • the thread profile sections 10, 12 are identical have to be. Rather, they can have a different slope and also a different hub.
  • the Radial profile height of the inlet section compared to that of the calibration section shifted inwards. This is indicated in FIG. 3 by the dashed line 32, which represents the final profile height.
  • the radial offset, marked with 34 is also referred to as a hub.
  • the outlet section 22 or 30 results there is also a relocation of the profile height in the direction of the flat 16 or 24 to facilitate the roll out on the workpiece.
  • Fig. 1 there are diametrical recesses on opposite sides 36 or 38 shaped. They are used to engage a drive plate of the thread rolling head with the roller. This will have a corresponding Gear ensures that a single rotation of the form roller Spring is tensioned, which after tripping ensures that the form rollers on each other to be moved so that the flattening engages with the workpiece arrives.
  • a thread forming roll is shown, the two thread profile sections 10a, 12a, which are separated from one another by a groove 14.
  • the groove 14 corresponds the groove 14 according to FIG. 1.
  • the thread form profile sections 10a, 12a a different diameter.
  • the groove 14 should also be noted that it has a width that is slightly larger than that Slope of the shaped profile sections. This also causes a certain overflow at the Formation of the thread on the workpiece possible.
  • the depth of the groove 14 corresponds to that Profile height of the shaped profile sections plus a minimal inlet stroke. Thereby there is no groove in the flattened area 16 or 24.

Description

Die Erfindung bezieht sich auf eine Rolle für einen Radialgewinderollkopf nach dem Oberbegriff des Anspruchs 1. So eine Rolle ist in der DE-A-2 335 651 offenbart.The invention relates to a roller for a radial thread rolling head according to the Preamble of Claim 1. Such is a role in DE-A-2 335 651.

Bei einem Radialgewinderollkopf, der zwei oder drei Rollen mit einem Gewindeformprofil aufweist, sind diese Rollen radial verstellbar gelagert. Das Gewindeformprofil weist in Umfangsrichtung gesehen eine Abflachung, einen Gewindeeinlaufabschnitt, einen Gewindekalibrierabschnitt und einen Gewindeauslaufabschnitt auf. Aus Formgründen und Gründen des von der Maschine aufzubringenden Drehmoments erstrecken sich die genannten Abschnitte über einen bestimmten Winkel. So erstreckt sich die Abflachung üblicherweise über einen Winkel von etwa 40°, der Einlaufabschnitt über einen Winkel von 160°, der Kalibrierabschnitt über einen Winkel von 90° und der Auslaufabschnitt über einen Winkel von 70°. Die Länge des Kalibrierabschnitts ist üblicherweise derart, daß sie einem Mehrfachen der Umfangslänge des zu formenden Werkstücks entspricht.For a radial thread rolling head, the two or three rollers with a thread profile has, these roles are mounted radially adjustable. The thread form profile seen in the circumferential direction a flat, a thread inlet section, a thread calibration section and a thread runout section. For reasons of shape and the torque to be applied by the machine the sections mentioned extend over a certain angle. For example, the flattening usually extends over an angle of approximately 40 ° Inlet section over an angle of 160 °, the calibration section over a 90 ° angle and the outlet section over an angle of 70 °. The length of the Calibration section is usually such that it is a multiple of Corresponds to the circumferential length of the workpiece to be shaped.

Mit Hilfe eines derartigen Radialgewinderollkopfes wird über eine beschränkte Länge ein Gewinde in einem Werkstück eingeformt. In der Ausgangsposition haben die Rollen eine Drehlage derart, daß die Abflachungen einander zugekehrt sind. Das Werkstück kann in dieser Position der Rollen in den Gewinderollkopf eingebracht werden. Mit Hilfe einer Auslösung von Hand oder automatisch durch die Werkzeugmaschine erfolgt automatisch eine radiale Zustellung der Rollen in Richtung Werkstück, so daß das Werkstück bei seiner Drehung mit Hilfe der Werkzeugmaschine die Formrollen mitzunehmen in der Lage ist. Die Rolloperation ist nach einer einzigen Umdrehung der Gewindeformrollen beendet.With the help of such a radial thread rolling head is limited Length of a thread molded into a workpiece. Have in the starting position the rollers have a rotational position such that the flats face each other. The Workpiece can be inserted into the thread rolling head in this position become. With the help of a manual trigger or automatically by the machine tool the rolls are automatically radially fed in the direction Workpiece so that the workpiece rotates with the help of the machine tool is able to take the form rolls. The roll operation is after finished with a single revolution of the thread forming rolls.

Durch den Reibschluß zwischen Werkstück und Gewinderollen werden die Gewinderollen gedreht, und es wird ein Federwerk gespannt, und nach Beendigung des Rollvorgangs wird eine Kupplung eingerastet, so daß die Gewinderollen das Werkstück wieder freigeben.Due to the frictional connection between the workpiece and the thread rolls Thread rolls rotated, and a spring mechanism is tensioned, and after completion of the rolling process, a clutch is engaged so that the thread rolling Release the workpiece again.

Ein derartiger Gewinderollkopf bzw. Formrollen für derartige Gewinderollköpfe sind etwa aus DE 39 30 131 C1 oder Fette Firmenschrift "Rollsysteme" bekannt geworden.Such a thread rolling head or form rolls for such thread rolling heads are known for example from DE 39 30 131 C1 or Fette company publication "Rollsysteme" become.

Die Rollen haben üblicherweise eine bestimmte axiale Länge. Diese kann für eine gegebene Ausführung eines Rollkopfes nicht mehr verändert werden. Andererseits kommt es bei einer Anzahl von Einsätzen vor, daß die Gewindeformrolle nur über einen begrenzten axialen Bereich eingesetzt wird. Dieser Bereich verschleißt mit der Zeit, während der übrige Bereich einsatzfähig bleibt, jedoch wegen seiner Lage unbenutzt ist.The rollers usually have a certain axial length. This can be for one given execution of a rolling head can no longer be changed. on the other hand it happens with a number of uses that the thread forming roll only over a limited axial area is used. This area wears out with the Time while the rest of the area remains operational, but because of its location is unused.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Formrolle für einen Radialgewinderollkopf zu schaffen, die besonders wirksam für die Formung von kurzen Gewindeabschnitten geeignet ist, jedoch eine komplette Ausnutzung ermöglicht.The invention is therefore based on the object of a form roller for a radial thread rolling head to create the most effective for the formation of short Thread sections is suitable, but allows full utilization.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.

Bei der erfindungsgemäßen Rolle ist in der Längshälfte der Rolle in einer Radialebene am Umfang ein ringförmig umlaufender Nutabschnitt geformt. Dieser Nutabschnitt erstreckt sich nicht in den abgeflachten Bereich hinein, bzw. es ist nicht erforderlich, ihn in diesen Bereich hineinzuführen. Auf beiden Seiten des Nutabschnitts ist ein Gewindeformprofil eingeformt, das eine entgegengesetzte Steigung aufweist, wobei die Abflachungen der Gewindeformprofile zueinander ausgerichtet sind. Mit anderen Worten, ist das eine Gewindeformprofil für ein Rechtsgewinde ausgelegt, ist auch das andere Gewindeformprofil für Rechtsgewinde geeignet, wenn die Rolle um 180° im Rollkopf gedreht wird. Es ist möglich, mit identischen Gewindeformprofilabschnitten identische Gewinde im Werkstück zu formen. Es ist jedoch auch möglich, unterschiedliche Gewindeformprofile zu verwenden, beispielsweise mit unterschiedlicher Steigung, aber auch mit unterschiedlichem Durchmesser. Ferner kann der Hub der Gewindeprofile unterschiedlich sein. Unter Hub versteht man den radial nach innen versetzten Anfang des Einlaufabschnitts gegenüber der Profilhöhe im Kalibrierabschnitt, dem eigentlichen Gewindeformabschnitt.In the role of the invention is in the longitudinal half of the role in a radial plane an annular circumferential groove section is formed on the circumference. This groove section does not extend into the flattened area, or it is not required to lead him into this area. On both sides of the groove section is a thread form profile molded in that has an opposite pitch has, the flats of the thread form profiles aligned with each other are. In other words, this is a thread form profile for a right-hand thread the other thread form profile is also suitable for right-hand threads, if the roll is turned 180 ° in the roll head. It is possible to use identical ones Thread form profile sections to form identical threads in the workpiece. It is however, it is also possible to use different thread form profiles, for example with different slopes, but also with different ones Diameter. Furthermore, the stroke of the thread profiles can be different. Under Stroke means the radially inward offset of the beginning of the inlet section compared to the profile height in the calibration section, the actual thread forming section.

Die Nut sorgt dafür, daß bei der Gewindeerzeugung das Werkstück nicht mit dem zweiten Formprofilabschnitt in Eingriff gelangt. Daher entspricht nach einer weiteren Ausgestaltung der Erfindung die Breite der Nut mindestens der Steigung des Gewindeformprofils plus einem gewissen Überlaufbetrag. Die Nut soll vorzugsweise auch eine Mindesttiefe aufweisen, die gleich der Höhe des Profils ist plus einem minimalen Einlaufhub.The groove ensures that the workpiece is not with the second shaped profile section engages. Therefore corresponds to another Embodiment of the invention, the width of the groove at least the slope of the Thread form profile plus a certain amount of overflow. The groove should preferably also have a minimum depth that is equal to the height of the profile plus a minimal inlet stroke.

Anhand von Ausführungsbeispielen wird die Erfindung näher erläutert.

Fig. 1
zeigt im Schnitt eine Gewindeformrolle für einen Radialgewinderollkopf nach der Erfindung.
Fig. 2
zeigt einen Schnitt durch die Darstellung nach Fig. 1 entlang der Linie 2-2.
Fig. 3
zeigt einen Schnitt durch die Darstellung nach Fig. 1 entlang der Linie 3-3.
Fig. 4
zeigt einen Schnitt durch eine Gewindeformrolle nach einer weiteren Ausführungsform der Erfindung.
The invention is explained in more detail using exemplary embodiments.
Fig. 1
shows in section a thread forming roll for a radial thread rolling head according to the invention.
Fig. 2
shows a section through the representation of FIG. 1 along the line 2-2.
Fig. 3
shows a section through the representation of FIG. 1 along the line 3-3.
Fig. 4
shows a section through a thread forming roll according to a further embodiment of the invention.

Die in den Fig. 1 bis 3 gezeigte Gewindeformrolle weist am Umfang zwei Gewindeformprofilabschnitte 10, 12 auf, die durch eine Nut 14 voneinander getrennt sind. Das Gewindeformprofil 12 weist eine Abflachung 16, einen sich über annähernd 160° erstreckenden Einlaufabschnitt 18, einen sich etwa über 90° erstreckenden Kalibrierabschnitt 20 sowie einen sich annähernd über 70° erstreckenden Auslaufabschnitt 22 auf. Der Profilabschnitt 10 weist eine Abflachung 24, einen Einlaufabschnitt 26, einen Kalibrierabschnitt 28 und einen Auslaufabschnitt 30 auf. Wie aus den Fig. 2 und 3 hervorgeht, sind die Abflachungen 16, 24 zueinander ausgerichtet, und die übrigen Abschnitte der Formprofile sind gleich, jedoch symmetrisch zur Mittenebene, welche von der Nut 14 aufgespannt ist. Mit anderen Worten, je nach Lage der Rolle in dem nicht gezeigten Radialgewinderollkopf wirkt sich der jeweilige Gewindeformabschnitt 10, 12 in gleicher Weise auf das ebenfalls nicht gezeigte Werkstück aus, mit dem es in Eingriff gebracht wird. Es werden identische Gewinde erzeugt, je nachdem, welches Gewindeformprofil 10, 12 zum Einsatz gelangt. Ist daher z. B. der Profilabschnitt 10 abgenutzt, wird die Rolle im Gewinderollkopf um 180° verdreht eingesetzt, so daß nunmehr der Profilabschnitt 12 zum Einsatz gelangt. Auf diese Weise läßt sich die gesamte Länge der Profilrolle nutzen, was für die Rolle eine erhebliche Standzeit zur Folge hat. Dies gilt zwar nur für relativ kurze zu formende Gewindeabschnitte, diese Einsatzfälle sind jedoch relativ häufig.The thread forming roller shown in FIGS. 1 to 3 has two thread profile sections on the circumference 10, 12, which are separated from one another by a groove 14. The thread form profile 12 has a flat 16, one approximately 160 ° extending inlet section 18, an approximately 90 ° extending Calibration section 20 and an outlet section extending approximately over 70 ° 22 on. The profile section 10 has a flat 24, an inlet section 26, a calibration section 28 and an outlet section 30. How out 2 and 3, the flats 16, 24 are aligned with each other, and the remaining sections of the shaped profiles are the same, but symmetrical to Center plane, which is spanned by the groove 14. In other words, depending The position of the roller in the radial thread rolling head, not shown, affects the respective Thread molding section 10, 12 in the same way to that also not shown Workpiece with which it is brought into engagement. There are identical threads generated, depending on which thread form profile 10, 12 is used. is therefore z. B. the profile section 10 is worn out, the role in the thread rolling head Inserted rotated 180 °, so that the profile section 12 is now used arrives. In this way, the entire length of the profile roll can be used, what the role has a significant service life. This only applies to relatively short ones Thread sections to be formed, but these applications are relatively common.

Es ist jedoch nicht obligatorisch, daß die Gewindeformprofilabschnitte 10, 12 identisch sein müssen. Vielmehr können sie eine unterschiedliche Steigung aufweisen und auch einen unterschiedlichen Hub. Wie aus den Fig. 2 und 3 zu erkennen, ist die Profilhöhe des Einlaufabschnitts gegenüber derjenigen des Kalibrierabschnitts radial nach innen versetzt. Dies ist in Fig. 3 durch die gestrichelte Linie 32 angedeutet, welche die endgültige Profilhöhe darstellt. Der radialer Versatz, der mit 34 gekennzeichnet ist, wird auch als Hub bezeichnet. Im Auslaufabschnitt 22 bzw. 30 ergibt sich ebenfalls eine Zurückverlegung der Profilhöhe in Richtung Abflachung 16 bzw. 24, um den Auslauf der Rolle am Werkstück zu erleichtern.However, it is not mandatory that the thread profile sections 10, 12 are identical have to be. Rather, they can have a different slope and also a different hub. As can be seen from FIGS. 2 and 3, the Radial profile height of the inlet section compared to that of the calibration section shifted inwards. This is indicated in FIG. 3 by the dashed line 32, which represents the final profile height. The radial offset, marked with 34 is also referred to as a hub. In the outlet section 22 or 30 results there is also a relocation of the profile height in the direction of the flat 16 or 24 to facilitate the roll out on the workpiece.

Wie aus Fig. 1 noch hervorgeht, sind auf gegenüberliegenden Seiten diametral Ausnehmungen 36 bzw. 38 geformt. Sie dienen zum Eingriff einer Mitnehmerscheibe des Gewinderollkopfes mit der Rolle. Dadurch wird über ein entsprechendes Getriebe dafür gesorgt, daß bei einer einmaligen Umdrehung der Formrolle eine Feder gespannt wird, welche nach Auslösung dafür sorgt, daß die Formrollen aufeinander zu bewegt werden, damit die Abflachung mit dem Werkstück in Eingriff gelangt.As can be seen from Fig. 1, there are diametrical recesses on opposite sides 36 or 38 shaped. They are used to engage a drive plate of the thread rolling head with the roller. This will have a corresponding Gear ensures that a single rotation of the form roller Spring is tensioned, which after tripping ensures that the form rollers on each other to be moved so that the flattening engages with the workpiece arrives.

In Fig. 4 ist eine Gewindeformrolle gezeigt, die zwei Gewindeformprofilabschnitte 10a, 12a aufweist, die durch eine Nut 14 voneinander getrennt sind. Die Nut 14 entspricht der Nut 14 nach Fig. 1. Im Unterschied zu Fig. 1 haben die Gewindeformprofilabschnitte 10a, 12a einen unterschiedlichen Durchmesser.In Fig. 4 a thread forming roll is shown, the two thread profile sections 10a, 12a, which are separated from one another by a groove 14. The groove 14 corresponds the groove 14 according to FIG. 1. In contrast to FIG. 1, the thread form profile sections 10a, 12a a different diameter.

Zur Nut 14 sei noch angemerkt, daß sie eine Breite hat, die etwas größer ist als die Steigung der Formprofilabschnitte. Dadurch ist auch ein gewisser Überlauf bei der Formung des Gewindes am Werkstück möglich. Die Tiefe der Nut 14 entspricht der Profilhöhe der Formprofilabschnitte plus einem minimalen Einlaufhub. Dadurch entfällt die Nut in dem abgeflachten Bereich 16 bzw. 24.The groove 14 should also be noted that it has a width that is slightly larger than that Slope of the shaped profile sections. This also causes a certain overflow at the Formation of the thread on the workpiece possible. The depth of the groove 14 corresponds to that Profile height of the shaped profile sections plus a minimal inlet stroke. Thereby there is no groove in the flattened area 16 or 24.

Claims (7)

  1. A roll for a radial thread-forming head which has disposed at its circumference a thread-forming profile with a flattened area, a thread entry portion, a thread calibrating portion, and a thread exit portion, characterized in that an annular, continuous groove portion (14) is formed in the longitudinal half of the roll in a radial plane at the circumference, except for the flattened area (16, 24), and a thread-forming profile (10, 12, 10a, 12a) is formed in the two sides of the groove portion (14) wherein the pitches of the thread-forming profiles are opposed and the positions of the flattened areas (16, 24) are coincident.
  2. The roll according to claim 1, characterized in that the thread-forming profiled portions (10, 12) are identical.
  3. The roll according to claim 1, characterized in that the thread-forming profiled portions are different.
  4. The roll according to claim 2, characterized in that the thread-forming profiled portions have a different elevation rate.
  5. The roll according to claim 1, characterized in that the diameters of thread-forming profiled portions (10a, 12a) are different.
  6. The roll according to any of claims 1 to 5, characterized in that the width of the groove (14) at least corresponds to the pitch of the thread-forming profiled portions plus a certain amount for overrun.
  7. The roll according to any of claims 1 to 6, characterized in that the depth of the groove (14) corresponds to the profile height plus a minimum elevation rate at entry (34).
EP00101837A 1999-04-22 2000-01-29 Roll for a radial thread rolling head Expired - Lifetime EP1046439B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29907128U 1999-04-22
DE29907128U DE29907128U1 (en) 1999-04-22 1999-04-22 Roll for a radial thread rolling head

Publications (3)

Publication Number Publication Date
EP1046439A2 EP1046439A2 (en) 2000-10-25
EP1046439A3 EP1046439A3 (en) 2002-06-26
EP1046439B1 true EP1046439B1 (en) 2003-12-10

Family

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Application Number Title Priority Date Filing Date
EP00101837A Expired - Lifetime EP1046439B1 (en) 1999-04-22 2000-01-29 Roll for a radial thread rolling head

Country Status (4)

Country Link
US (1) US6298703B1 (en)
EP (1) EP1046439B1 (en)
DE (2) DE29907128U1 (en)
ES (1) ES2209693T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6644084B1 (en) * 2001-06-14 2003-11-11 Tulip Corporation Method and apparatus for manufacturing a battery terminal with undercut rings
US7628049B2 (en) 2001-06-14 2009-12-08 Tulip Corporation Method and apparatus for manufacturing a battery terminal with undercut rings
US7905384B1 (en) 2002-06-04 2011-03-15 Tulip Corporation Cold formed battery terminal
ITBS20060066A1 (en) * 2006-03-23 2007-09-24 Santoni & C Spa COMMAND DEVICE FOR OSCILLATING BARS DOOR THROUGH BARS FOR LINEAR TEXTILE MACHINES

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US516764A (en) * 1894-03-20 Charles fairbairn and matthew wells
DE837088C (en) * 1949-11-01 1952-04-21 Pee Wee Maschinen Und Appbau W Thread roller or roller
US3803691A (en) * 1969-02-22 1974-04-16 K Pradel Means for mounting a work roll on a shaft
DE2335651C3 (en) * 1973-07-13 1980-11-06 Wilhelm Fette Gmbh, 2053 Schwarzenbek Radial roller head
JPH01215425A (en) * 1988-02-23 1989-08-29 Mitsuba Electric Mfg Co Ltd Rolling method for worm
DE3930131A1 (en) * 1989-09-09 1991-03-21 Fette Wilhelm Gmbh Thread roller for thread rolling head - has cylindrical shoulder with marking for engraving

Also Published As

Publication number Publication date
EP1046439A2 (en) 2000-10-25
US6298703B1 (en) 2001-10-09
DE29907128U1 (en) 1999-07-15
EP1046439A3 (en) 2002-06-26
DE50004689D1 (en) 2004-01-22
ES2209693T3 (en) 2004-07-01

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