EP0853991B1 - Radialwalzkopf - Google Patents
Radialwalzkopf Download PDFInfo
- Publication number
- EP0853991B1 EP0853991B1 EP97121500A EP97121500A EP0853991B1 EP 0853991 B1 EP0853991 B1 EP 0853991B1 EP 97121500 A EP97121500 A EP 97121500A EP 97121500 A EP97121500 A EP 97121500A EP 0853991 B1 EP0853991 B1 EP 0853991B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller head
- pin
- locking
- spring
- bearing component
- 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
- B21H3/046—Thread-rolling heads working radially
Definitions
- the invention relates to a radial roller head according to the preamble of the claim 1.
- a radial roller head is known with one in one Holders at equal angular distances and at center distances around the rolling axis distributed rollers.
- the roller surfaces have a circumference against its direction of rotation rising spiral.
- the reels are coupled with a gear transmission, and a lock snaps into place every full The roller turns on automatically.
- the lock triggered namely by the workpiece that is to be deformed with the rollers.
- the radial roller head is the insertion movement of the workpiece between the rollers limiting and coupled with the locking of the rollers Stop provided, which counteracts the action of compression springs
- Direction of the rolling axis is displaceable by an actuation stroke.
- the lock is when the workpiece is placed due to its movement around the actuation stroke solved.
- the invention has for its object to provide a radial roller head the triggering process is a relative movement between the rollers and the workpieces is avoided.
- this is fixed axially Component axially slidably mounted.
- a shift of the rolling head takes place against a preload spring, which the roller head into one of the bearing component presses the maximum distant position, which is limited by appropriate stops is.
- a release device acts between the bearing component and the roller head in the form of any gear arrangement that triggers the lock when the roller head is moved towards the bearing component.
- the workpiece hits the stop, which in turn takes the roller head and moves it against the bearing component. This movement causes the roller head to lock when the trigger point is reached.
- the lock can be conventional.
- the trigger device includes a lever between the bearing member and roller head is arranged and which acts on a pressure pin, which in turn with the lock interacts.
- the maximum displacement of the rolling head is according to one embodiment of the invention compared to the bearing component larger than to trigger the lock required. This contributes to process security.
- a locking cam coupled to the gear transmission has two cam sections, each with a spring in Locking direction is assigned to the latch, which can be selected using a locking lever can be moved out of the locked position.
- the locking lever can be operated manually Have handling section.
- the locked position of the one with the weaker spring loaded bolt is the locked position of the bolt loaded with the stronger spring upstream in the stop direction, and pass through the cam sections one cam revolution.
- the one between the lever The roller head and bearing component actuated push pin is guided to the locking lever this during an actuation stroke against the load from the stronger compression spring To pivot the bolt and push this bolt out of its locked position.
- an axially movable is in the bearing component Abutment mounted, which is biased by a spring towards the lever is, the spring is made stronger than the biasing spring of the bearing component.
- the abutment is preferably formed by a pin, that of a plate spring assembly is biased.
- the pen can have a rounded end in a corresponding one Engage the recess in the lever.
- the yielding abutment has the advantage that a security is created with an axial movement of the Workpiece beyond the trigger point.
- a stop pin received in a sleeve, which in turn is rotatably mounted is.
- the stop pin can have an external thread with an internal thread the sleeve cooperates to the axial position of the stop pin to change.
- the invention Tripping device can be attached to conventional standard radial roller heads become. It is only necessary to provide an additional flange as a bearing component. At The bearing component can be integrated into the head of newly manufactured radial roller heads.
- the single figure shows a section through a radial roller head according to the invention.
- the construction shown corresponds with regard to the gear transmission, the locking for the rollers and the drive device for rotating the rollers in the system to the workpiece of conventional constructions.
- the radial roller head has three profiled rollers, one of which is shown at 10 is. They are distributed over the circumference between two bearing plates 12 and 14 for Axes 16 arranged. The bearing plates 12, 14 are separated by spacer bolts 18 kept at a distance.
- Each of the rollers has a flat 20, which in the rest position shown in each case is facing the rolling axis and extends over a peripheral portion. Of starting from the center of the flat 20 extends over the circumference over 180 ° a diameter-increasing section of the rolling surfaces with a spiral Course. This is followed by a rolling surface that is concentric to the rolling axis over an angle of 90 °. The remaining angle of 90 ° is for a sloping Part of the rolling surface used.
- Each axis of roller 10 has an eccentric portion that is on a gear plate 24 of the roller head is rotatably mounted.
- At the back end sits on the Axes 16 each have a gear 26 which meshes with a ring gear 28.
- a twist of the ring gear 28 leads to the rotation of the gears 26, which are firmly on the Axes 16 sit so that with the help of this mechanism the pitch circle diameter the rollers 10 can be slightly reduced or enlarged.
- a gear 30 sits on the axles 16, which has an intermediate gear 32 comb.
- a locking cam 34 is non-rotatably connected to the intermediate gear 32, which interacts with two locking pins 36, 38.
- the pins 36, 38 are of each a spring 40, 42 pressed in the reverse direction, the spring 40 being the stronger is.
- a locking lever 44 engages with the other end protrudes from the radial roller head and z. B. can be detected by hand.
- the blocking position shown is the pin 36 in the blocking position in which it is in the area of a cam section 46 engages in the path of rotation of the locking cam 34.
- the pen 38 is assigned a cam section 48 of the cam 34, which is in the stop direction something protrudes.
- the locking cam is non-rotatably connected to a disc assembly 50 to which in the Attack 120 ° distance tension springs, one of which is shown at 52. At the other At the end, the springs 52 are fixed in a housing 54 via a pin 53 is firmly connected to the gear plate 24. They practice on the locking cams for a moment 34, which tries to twist it out of the locked position.
- a pivoting of the locking lever 44 from the rest position shown in a Working position causes the pin 36 to be pushed out of the locked position and the Locking cam 34 is rotated by its tension springs 52.
- the transmission from the intermediate gear 32 and the gears 30 transmits the rotary movement to the rollers 10, which come into contact with the workpiece with their increasing roller surface. After frictional engagement on the workpiece, they are rotated further by this, even before the drive springs reach their dead center, beyond which one can cause further rotation of the locking cam 34.
- the tension springs 52 With the further rotation of the rollers 10 relative to the workpiece, the tension springs 52 are tensioned again. For this purpose, they reach into the disk arrangement 50 with hook-shaped ends.
- the Cam 34 is rotatably supported in the spring housing 54 with a shaft journal, the Z. B. receives the pin 38 and the spring 42.
- fastening screws 56 is an annular member 58 connected to the right side of the housing 54, the has circumferentially spaced axially parallel bores 60, in which with the aid of a radially projecting shoulder 62 bore sections are formed.
- the holes 60 take on a bolt 64, the head 66 in the left end against the Shoulder 62 comes to rest.
- a smaller diameter section 68 of the Bolt 64 is in a threaded bore of a bearing component 70 in the form of a flange screwed on the right side of the housing 54.
- a coil spring 72 is arranged, the left end of which Shoulder 62 and is supported with the right end on the bearing component 70. Between the head 66 of the bolt 64 and the housing 54 are left a clearance.
- An abutment pin 82 is mounted centrally in the axial shoulder 74 and stands with one left section 84, which is rounded at the free end, via the approach 74.
- the right section 88 of the pin 82 extends through a plate spring assembly 90 into a nut 92 which is in a threaded bore the approach 74 is screwed.
- a lever 94 is arranged, which by a Bolt 96 is limited in the pivoting to the right.
- the lever 94 can be turned slightly to the left from the position shown in the figure are pivoted against a spring 98 in a corresponding bore sits in the housing 54.
- the lever 94 has a tapered recess 100 into which the Section 84 engages with the rounded end.
- a pressure pin 102 movably mounted with one End rests on the locking lever 44 and with the other end at the top of the Lever 94.
- a sleeve 106 is in the plate 12 and in a bore in the central gear 32 rotatably mounted. It receives a stop pin 22 in a threaded bore, whose length protruding from the sleeve 106 can be changed by twisting can. In the respective position, it can be held by a locking pin 108 become.
- the workpiece comes along the stop pin 22 in contact, the relative rotation between the workpiece and radial roller head by rotating the stop pin 22 with the sleeve 106 to be caught.
- the Stop pin 22 the entire roller head shifted to the right against the springs 72.
- the abutment pin 82 remains unchanged in its position, since the plate spring assembly 90 is designed to be significantly stronger than the springs 72 the lever 94 pivots counterclockwise and presses the Push pin 102 to the left against the lock lever 44, which is clockwise is twisted. In this way, the triggering of the Lock instead, in which the pin 36 is moved to the left.
- the tension springs 52 rotate the locking cam 34 and the central gear 32, which the gears 30th drives and thus the rollers 10 in engagement with the workpiece.
- the plate spring assembly 90 can yield and prevent damage to the roller head.
Description
Claims (7)
- Radialwalzkopf mit in einem Halter (12, 14) unter gleichen Winkelabständen und in Achsabständen um die Walzachse verteilt angeordneten Walzen (10), deren Walzflächen einen über den Umfang entgegen ihrer Drehrichtung spiralförmig ansteigenden Verlauf haben, mit einem die Walzen (10) miteinander koppelnden Zahnradgetriebe (30, 32), einer Verriegelung (34, 36, 38) für die Walzen (10), die nach jeder vollen Walzenumdrehung selbsttätig einrastet und vor jedem Walzvorgang auslösbar ist, einem bei der Einführbewegung eines Werkstückes zwischen die Walzen (10) mit dem Werkstück in Eingriff bringbaren, die Verriegelung auslösenden Anschlag (22), und einer Antriebseinrichtung (50, 52), welche die Walzen (10) nach dem Auslösen der Verriegelung (34, 36, 38) bis zur Anlage der Walzenflächen an das Werkstück dreht, um danach durch Reibung mit diesem weitergedreht zu werden, dadurch gekennzeichnet, daß der Walzkopf gegenüber einem auf der in Walzrichtung den Walzen (10) gegenüberliegenden Seite angeordneten, axial feststehenden Lagerbauteil (70) gegen eine Vorspannfeder (72) axial verschiebbar gelagert ist und daß zwischen dem Lagerbauteil (70) und der Verriegelung im Walzkopf eine Auslösevorrichtung (94, 102) in Form einer Getriebeanordnung vorgesehen ist, mittels der die Verriegelung erst ausgelöst wird, wenn der Walzkopf durch das bei der Einführbewegung gegen den Anschlag stoßende Werkstück um einen Betätigungshub auf das Lagerbauteil (70) zu bewegt wird.
- Radialwalzkopf nach Anspruch 1, dadurch gekennzeichnet, daß die Auslösevorrichtung einen zwischen dem Walzkopf und dem Lagerbauteil (70) angeordneten Hebel (94) aufweist, der auf einen die Verriegelung lösenden Druckstift (102) wirkt.
- Radialwalzkopf nach Anspruch 2, bei dem das Zahnradgetriebe (30, 32) zur Verriegelung der Walzen (10) einen Sperrnocken (34) mit zwei Nockenabschnitten aufweist, denen jeweils ein mit einer Druckfeder (40, 42) in Sperrichtung belasteter Stift (36, 38) zugeordnet ist, die durch einen Sperrhebel (44) wahlweise aus der Sperrstellung rückbar sind, wobei die Druckfedern (40, 42) unterschiedliche Federstärken aufweisen und die Sperrstellung des mit der schwächeren Druckfeder (42) belasteten Stiftes (38) der Sperrstellung des mit der stärkeren Druckfeder (40) belasteten Stiftes (36) in Anschlagrichtung vorgeordnet ist und die Nockenabschnitte bei einer Walzenumdrehung eine Nockenumdrehung durchlaufen, dadurch gekennzeichnet, daß der Druckstift (102) zum Sperrhebel (44) geführt ist, um diesen bei einem Betätigungshub des Walzkopfes gegenüber dem Lagerbauteil (70) gegen den von der stärkeren Druckfeder (40) belasteten Stift (36) zu verschwenken und diesen Stift aus seiner Sperrstellung zu drücken.
- Radialwalzkopf nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß im Lagerbauteil (70) ein axial bewegbares Widerlager (82) gelagert ist, das durch eine Feder (90) in Richtung des Hebels (94) vorgespannt ist und diese Feder (90) stärker ausgeführt ist als die Vorspannfeder (72) des Lagerbauteils (70).
- Radialwalzkopf nach Anspruch 1, dadurch gekennzeichnet, daß der maximale Verschiebeweg des Walzkopfes gegenüber dem Lagerbauteil (70) größer ist als zum Auslösen der Verriegelung erforderlich.
- Radialwalzkopf nach Anspruch 4, dadurch gekennzeichnet, daß das Widerlager (82) von einem Stift gebildet ist und die Feder (90) ein Tellerfederpaket ist.
- Radialwalzkopf nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Anschlag (22) als Anschlagstift ausgebildet ist, der in einer um die Walzachse drehbar gelagerten Hülse (106) aufgenommen ist und der Anschlagstift ein Außengewinde aufweist zwecks Einschraubens in ein Innengewinde der Hülse (106).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19701049A DE19701049C1 (de) | 1997-01-15 | 1997-01-15 | Radialwalzkopf |
DE19701049 | 1997-01-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0853991A1 EP0853991A1 (de) | 1998-07-22 |
EP0853991B1 true EP0853991B1 (de) | 2001-04-04 |
Family
ID=7817367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97121500A Expired - Lifetime EP0853991B1 (de) | 1997-01-15 | 1997-12-06 | Radialwalzkopf |
Country Status (4)
Country | Link |
---|---|
US (1) | US5924317A (de) |
EP (1) | EP0853991B1 (de) |
DE (2) | DE19701049C1 (de) |
ES (1) | ES2157042T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007031753B3 (de) * | 2007-07-07 | 2008-11-27 | Fette Gmbh | Radialwalzkopf |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20102471U1 (de) * | 2001-02-13 | 2001-04-26 | Fette Wilhelm Gmbh | Gewinderollkopf |
DE10247566B4 (de) * | 2002-10-11 | 2004-07-29 | Fette Gmbh | Radialrollkopf |
DE10308038B3 (de) * | 2003-02-26 | 2004-07-15 | Fette Gmbh | Gewindewalzkopf |
US8814811B2 (en) * | 2008-05-23 | 2014-08-26 | Medtronic, Inc. | Fall detection algorithm utilizing a three-axis accelerometer |
CN111558677B8 (zh) * | 2020-04-08 | 2022-01-28 | 深圳市欧远建材有限公司 | 一种钢筋直螺纹滚丝机滚丝装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3352139A (en) * | 1964-09-18 | 1967-11-14 | Nat Acme Co | Threading implement |
DE2335651C3 (de) * | 1973-07-13 | 1980-11-06 | Wilhelm Fette Gmbh, 2053 Schwarzenbek | Radialwalzkopf |
DE2441387A1 (de) * | 1974-08-29 | 1976-03-11 | Fette Wilhelm Gmbh | Verfahren und vorrichtung zum herstellen von gewinden und anderen profilen an rotationssymmetrischen werkstuecken |
DE4236085C2 (de) * | 1992-10-26 | 1995-04-06 | Fette Wilhelm Gmbh | Radialwalzkopf |
-
1997
- 1997-01-15 DE DE19701049A patent/DE19701049C1/de not_active Expired - Fee Related
- 1997-12-06 ES ES97121500T patent/ES2157042T3/es not_active Expired - Lifetime
- 1997-12-06 DE DE59703292T patent/DE59703292D1/de not_active Expired - Fee Related
- 1997-12-06 EP EP97121500A patent/EP0853991B1/de not_active Expired - Lifetime
-
1998
- 1998-01-15 US US09/007,405 patent/US5924317A/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007031753B3 (de) * | 2007-07-07 | 2008-11-27 | Fette Gmbh | Radialwalzkopf |
Also Published As
Publication number | Publication date |
---|---|
US5924317A (en) | 1999-07-20 |
DE59703292D1 (de) | 2001-05-10 |
ES2157042T3 (es) | 2001-08-01 |
DE19701049C1 (de) | 1998-06-04 |
EP0853991A1 (de) | 1998-07-22 |
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