EP0800877B1 - Gewinderollkopf - Google Patents
Gewinderollkopf Download PDFInfo
- Publication number
- EP0800877B1 EP0800877B1 EP97105483A EP97105483A EP0800877B1 EP 0800877 B1 EP0800877 B1 EP 0800877B1 EP 97105483 A EP97105483 A EP 97105483A EP 97105483 A EP97105483 A EP 97105483A EP 0800877 B1 EP0800877 B1 EP 0800877B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread rolling
- rolling head
- profile
- bore
- mounting bolt
- 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
Links
Images
Classifications
-
- 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
- B21H3/044—Thread-rolling heads working axially
-
- 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
- B21H3/046—Thread-rolling heads working radially
Definitions
- the invention relates to a thread rolling head the preamble of claim 1 (see e.g. CH-A-582 028).
- thread rolling heads It is known to thread using so-called thread rolling heads to manufacture.
- three types of thread rolling heads namely axial rolling heads, Radial roller head and tangential roller head.
- the axial roller head has profile rollers with pitch-free Profile rings on.
- the profile rolls can be horizontal Axis are pivoted so that the workpiece or the rolling head with a complete rotation around the Thread pitch moves axially. It can be any Make long threads.
- the profile rollers are on bolts rotatably mounted, which in turn is eccentric are. A gear sits on the bolt and works with you centric gear together to form the profile rollers their distance from each other. To this In this way, the feed can be carried out before the actual operation accomplish.
- the degree of Adjustment or by the position of the bolt the distance change between the profile rolls. So different Thread diameters are produced.
- the profile rollers have a Flattening on that in the starting position of the feed axis the workpiece is turned.
- the profile rollers with the help of a spring or the like rotated through a certain angle until Friction with the workpiece is made.
- Another spin of the rolling head or the workpiece leads to the fact that continue turning the profile rollers and thereby forming the thread.
- the thread is within a single roll revolution generated. Point at the end of the molding process the flattened sides of the profile rollers back to the workpiece to so that it can be removed.
- the tangential thread rolling head has two thread rolls, which are driven sideways against the workpiece and during the advancing feed movement mainly in form the thread in the direction tangential to the workpiece.
- the forming process is essentially complete when the The axes of the workpiece and roller are vertically one above the other.
- tangential rolling as with radial rolling, i.e. relatively short processing time and producing threads with a short thread runout. You can also thread behind a collar getting produced.
- the bearing bolts are for the profile rollers in two spaced apart Bearing plates rotatably mounted.
- the front bearing plate or front plate is involved in several thread forming processes a hindrance because they bring the profile rolls up to a collar or the like at least by the thickness of the Front panel limited.
- Another disadvantage is that due to the storage of the profile rolls of the work area, i.e. the Area of thread diameter using the rolling head 5 can be produced is limited.
- EP 0 417 416 also discloses an axial thread rolling head without a front plate known.
- the one-sided storage of the Profile rollers meanwhile requires that the bearing pin in its Thickness must not be less than a minimum. Thereby is also for threaded roller heads without front plates the working area is limited according to the state of the art.
- the invention has for its object a thread rolling head to create, in which the profile roles an extended Have work area and still stable are stored.
- the rolling head according to the invention for the production of short threads and profiles for screw fittings or similar workpieces, where unfavorable space conditions make it difficult to roll.
- the profile rollers are molded in one piece with a bearing pin, which in turn for one-sided storage in a hole in the bearing unit is rotatably mounted.
- profile roller and bolt has several advantages in the wake. For one thing, it shows one larger work area, for example between 12 and 40 mm outer diameter. Due to the favorable storage conditions between the bearing pin and the bore higher stability compared to known front panelless Profile rolls reached.
- the bearing pin can be screwed be fixed axially.
- Quick-change system as has become known in many versions is.
- the Locking bolt is preferably acted upon by a spring, whereby the conical locking surface that Locking element constantly engages with the groove. If the locking pin is adjusted axially, the locking element can dodge radially inwards so that the Interlock between the bearing pin and the hole is released becomes. This allows the profile roller with the bearing pin removed the hole and replaced it with another one become.
- the invention is particularly for axial and radial thread rolling heads suitable. There is an adjustment in both the profile rollers are provided in the radial direction.
- Axial thread rolling head becomes an adjustment of the profile rollers made radially outward when a workpiece is between the roles to be introduced.
- With the radial thread rolling head the profile rollers are shifted for setting the center distance.
- With known axial thread rolling heads this is done in that the bearing pin for the profile roll eccentric and in one Hole is added. If the bearing pin is turned, for example with the help of a suitable gear also a radial adjustment of the profile roller.
- the bearing pin rotatably mounted in a bushing that is eccentric is. Will the jack in a conventional manner to their If the axis is twisted, the axis of the bearing pin will shift the profile role.
- a gear carries which rotates via a central gear can be
- the socket with a pin on which the Gear is arranged is, according to an embodiment of the invention the socket with a pin on which the Gear is arranged.
- the actuation of an axial thread rolling head differs in execution according to the invention does not differ from a known axial thread rolling head. The same applies to the radial thread rolling head to who is trained with the profile rollers according to the invention is.
- An annular plate 10 is over clamping bolts, one of which one is shown at 12, against an annular disk 14 clamped by pressing a flange 16.
- the plate 10 has three axially parallel bores seen in the circumferential direction, one of which is shown at 18.
- the holes 18 receive a socket 20 closed at one end, which is rotatably mounted by means of needle bearings 22.
- the hole the socket is arranged eccentrically.
- she takes a bearing pin 24, which is in one piece with a profile roller 26 is shaped.
- the bushing 20 is drilled via needle bearings 28 and 30 at the front and rear end.
- An axial needle bearing 32 is between the associated side of the roller 28 and the Plate 10 and the socket 20 arranged.
- Roller 26 and bearing pin 24 have an axial bore 34, in which a locking pin 36 is slidably mounted with a double cone surface 38 in the area of a radial Bore 40 in the bearing pin 24 in which a locking element 42 sits, the inside and outside of a spherical cap is.
- the outer end of the locking member 42 engages in a complementarily shaped annular groove 42a.
- a plug 44 screwed in the left end of the bore 34.
- a spring 46 is arranged between plug 44 and the associated end of the locking pin 36.
- the locking element 42 in FIG constant engagement with the groove 42a so that the Profile roller 26 is axially secured. Should the profile role are removed, the pin 36 is pressed in the direction of arrow F, so that the locking element radially inwards can be moved and the bearing pin 24 pulled out.
- a journal 48 molded on which a gear 50 is arranged.
- the Gear 50 meshes with a central gear 52 which is on a Stub shaft 54 of a coupling part 56 is seated with a coupling part 58 cooperates.
- the coupling parts 56, 58 form a claw coupling.
- the coupling part 58 is connected to a shaft 60 with which the one in the figure shown thread rolling head clamped in a machine tool can be.
- Coil spring 62 Between the flange 16 and the stub shaft 54 is one Coil spring 62 arranged. If the coil spring is tensioned, she tries to turn the gear 52, causing the Bush 20 is rotated and thereby the distance between the profile rollers 26 changes.
- the trigger mechanism for the measure described is not shown. He is also known per se.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Pinball Game Machines (AREA)
- Vehicle Body Suspensions (AREA)
- Heat Treatment Of Steel (AREA)
Description
Claims (5)
- Gewinderollkopf mit mindestens zwei ein Formgewinde aufweisenden Profilrollen (26), die in einer Lagereinheit (10) drehbar gelagert sind, und einer Vorschubeinrichtung, die die Profilrollen (26) mit einem zylindrischen Werkstück in Eingriff und außer Eingriff bringt, wobei die Profilrollen (26) einteilig mit Lagerbolzen (24) geformt sind, der zur einseitigen Lagerung der Profilrollen (26) in der Bohrung der Lagereinheit (10) drehbar gelagert ist, dadurch gekennzeichnet, daß der Lagerbolzen (24) in einer exzentrischen Bohrung einer zylindrischen Buchse (20) gelagert ist, die ihrerseits in der Bohrung der Lagereinheit drehbar gelagert ist und die Buchse (20) über ein Getriebe (50, 52) verdrehbar ist.
- Gewinderollkopf nach Anspruch 1, dadurch gekennzeichnet, daß der Lagerbolzen (24) durch Schraubbefestigung axial festgelegt ist.
- Gewinderollkopf nach Anspruch 1, dadurch gekennzeichnet, daß der Lagerbolzen (24) durch ein Schnellwechselsystem axial festgelegt ist.
- Gewinderollkopf nach Anspruch 3, dadurch gekennzeichnet, daß Profilrolle (26) und Lagerbolzen (24) eine axiale Durchbohrung (34) aufweisen, in der ein Verriegelungsstift (36) angeordnet ist mit einer konischen Verriegelungsfläche (38), die ihrerseits auf ein Verriegelungselement (42) wirkt, das radial verschiebbar in einer Radialbohrung (40) des Lagerbolzens (24) sitzt und die Lagerbohrung eine Ringnut (42a) aufweist, in der das Verriegelungselement (42) umläuft, wenn die Profilrolle (26) sich dreht.
- Gewinderollkopf nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß auf einem mit der Buchse (20) verbundenen Antriebszapfen (48) ein Zahnrad (50) sitzt, das mit einem Zahnrad 52 kämmt, das koaxial auf einem Kupplungsteil (56) sitzt, wobei das andere Kupplungsteil mit einem Spannschaft (60) oder dergleichen verbunden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29606684U | 1996-04-12 | ||
DE29606684U DE29606684U1 (de) | 1996-04-12 | 1996-04-12 | Gewinderollkopf |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0800877A1 EP0800877A1 (de) | 1997-10-15 |
EP0800877B1 true EP0800877B1 (de) | 2000-08-02 |
Family
ID=8022497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97105483A Expired - Lifetime EP0800877B1 (de) | 1996-04-12 | 1997-04-02 | Gewinderollkopf |
Country Status (4)
Country | Link |
---|---|
US (1) | US5870918A (de) |
EP (1) | EP0800877B1 (de) |
DE (2) | DE29606684U1 (de) |
ES (1) | ES2149525T3 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20102471U1 (de) * | 2001-02-13 | 2001-04-26 | Wilhelm Fette Gmbh, 21493 Schwarzenbek | Gewinderollkopf |
DE202004000424U1 (de) * | 2004-01-14 | 2004-04-01 | Fette Gmbh | Axialgewinderollkopf |
CN103521666B (zh) | 2012-10-08 | 2017-08-11 | 上海泛华紧固系统有限公司 | 一种用于滚压管螺纹的滚压头、及其设备和应用该设备加工的管圆柱毛坯 |
CN103223453A (zh) | 2013-03-31 | 2013-07-31 | 上海泛华紧固系统有限公司 | 钢管标准外径上直接滚压锥管外螺纹方法、装置及其产品 |
CN108907046B (zh) | 2016-12-13 | 2021-01-29 | 上海泛华紧固系统有限公司 | 管螺纹加工方法、滚压头、设备、模块、生产线及其产品 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US541551A (en) * | 1895-06-25 | Mechanism for rolling threads on bars or rods | ||
US2150815A (en) * | 1937-09-30 | 1939-03-14 | Berger Kornel | Screw-threaded stock and manufacture of same |
FR1065418A (fr) * | 1951-10-29 | 1954-05-25 | Appareil pour rouler les pas de vis sur tours dans l'industrie métallurgique | |
CH394096A (de) * | 1962-06-29 | 1965-06-30 | Schaeublin Ernst | Gewinderollwerkzeug |
CH582028A5 (en) * | 1974-09-05 | 1976-11-30 | Lechot Andre | Thread cutting tool for small screws - has each cutter rotating on spindle with out head, giving longer threaded portion |
CH595173A5 (de) * | 1975-12-23 | 1978-01-31 | Harold Habegger | |
FR2448949A1 (fr) * | 1979-02-16 | 1980-09-12 | Hydexco | Tete a rouler les filets |
DE8910769U1 (de) * | 1989-09-09 | 1989-11-02 | Wilhelm Fette Gmbh, 2053 Schwarzenbek | Axialgewinderollkopf |
US4924687A (en) * | 1989-10-16 | 1990-05-15 | C. J. Winter Machine Works, Inc. | Quick release thread roll support |
US5167136A (en) * | 1991-08-09 | 1992-12-01 | C. J. Winter Machine Works, Inc. | Thread roll attachment |
DE4236085C2 (de) * | 1992-10-26 | 1995-04-06 | Fette Wilhelm Gmbh | Radialwalzkopf |
DE9313282U1 (de) * | 1993-09-03 | 1993-12-09 | Wilhelm Fette Gmbh, 21493 Schwarzenbek | Axialgewinderollkopf |
-
1996
- 1996-04-12 DE DE29606684U patent/DE29606684U1/de not_active Expired - Lifetime
-
1997
- 1997-04-02 EP EP97105483A patent/EP0800877B1/de not_active Expired - Lifetime
- 1997-04-02 DE DE59702096T patent/DE59702096D1/de not_active Expired - Fee Related
- 1997-04-02 ES ES97105483T patent/ES2149525T3/es not_active Expired - Lifetime
- 1997-04-09 US US08/833,760 patent/US5870918A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2149525T3 (es) | 2000-11-01 |
EP0800877A1 (de) | 1997-10-15 |
DE59702096D1 (de) | 2000-09-07 |
DE29606684U1 (de) | 1996-07-11 |
US5870918A (en) | 1999-02-16 |
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