EP0853991B1 - Tête de roulage radial - Google Patents

Tête de roulage radial Download PDF

Info

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
Application number
EP97121500A
Other languages
German (de)
English (en)
Other versions
EP0853991A1 (fr
Inventor
Torsten Buck
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
Original Assignee
Wilhelm Fette GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wilhelm Fette GmbH filed Critical Wilhelm Fette GmbH
Publication of EP0853991A1 publication Critical patent/EP0853991A1/fr
Application granted granted Critical
Publication of EP0853991B1 publication Critical patent/EP0853991B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rolling Contact Bearings (AREA)
  • Mechanical Operated Clutches (AREA)
  • Gears, Cams (AREA)

Claims (7)

  1. Tête de laminage radiale comportant des rouleaux (10) disposés répartis dans un support (12, 14) autour de l'axe de laminage avec des écarts angulaires égaux et écartés de l'axe, dont les surfaces de laminage s'enroulent en spirale montante sur la périphérie dans le sens inverse de leur sens de rotation, comportant une boíte d'engrenages (30, 32) accouplant l'un à l'autre les rouleaux (10), un verrouillage (34, 36, 38) pour les rouleaux (10), qui s'enclenche automatiquement après chaque tour complet des rouleaux et peut être libéré avant chaque passe de laminage, une butée (22) libérant le verrouillage, qui, lors du mouvement d'introduction d'une pièce à usiner entre les rouleaux (10), peut être mise en prise avec la pièce à usiner, et un dispositif d'entraínement (50, 52) qui, après la libération du verrouillage (34, 36, 38), fait tourner les rouleaux (10) jusqu'à l'application des surfaces des rouleaux sur la pièce à usiner, rouleaux qui continuent ensuite de tourner par frottement avec celle-ci, caractérisée en ce que la tête de laminage est placée, mobile axialement contre un ressort de précontrainte (72), en face d'une pièce de construction de palier (70) fixe axialement, disposée du côté opposé aux rouleaux (10) dans le sens du laminage, et en ce qu'il est prévu dans la tête de laminage, entre la pièce de construction de palier (70) et le verrouillage un dispositif de libération (94, 102) sous forme d'un dispositif à engrenages, au moyen duquel le verrouillage n'est libéré que lorsque la tête de laminage est déplacée par la pièce à usiner frappant contre la butée lors du mouvement d'introduction, d'une course de commande vers la pièce de construction.
  2. Tête de laminage radiale selon la revendication 1, caractérisée en ce que le dispositif de libération comporte entre la tête de laminage et la pièce de construction de palier (70) un levier (94) qui agit sur une tige de poussée (102) libérant le verrouillage.
  3. Tête de laminage radiale selon la revendication 2, dans laquelle la boíte d'engrenages (30, 32) pour le verrouillage des rouleaux (10) comporte un saillant d'arrêt (34) avec deux parties de saillant, auxquelles sont associées des tiges (36, 38) chargées chacune par un ressort de pression (40, 42) dans le sens de l'arrêt et qui peuvent être retirées à volonté de la position d'arrêt par un levier d'arrêt (44), les ressorts de pression (40, 42) présentant des forces élastiques différentes, la position d'arrêt de la tige (38) chargée par le ressort de pression le plus faible (42) étant placée avant la position d'arrêt de la tige (36) chargée par le ressort de pression le plus fort (40) en direction de la butée et les parties de saillant faisant un tour de saillant pour un tour de rouleau, caractérisée en ce que la tige de pression (102) est guidée vers le levier d'arrêt (44) pour faire tourner celui-ci, lors d'une course de commande de la tête de laminage par rapport à la pièce de construction de palier (70), contre la tige (36) chargée par le ressort de pression le plus fort (102) et pousser cette tige hors sa position d'arrêt.
  4. Tête de laminage radiale selon la revendication 2 ou 3, caractérisée en ce dans la pièce de construction de palier (70) est logée une butée mobile axialement (82) qui est précontrainte par un ressort (90) en direction du levier (94) et ce ressort (90) est exécuté plus fort que le ressort de précontrainte (72) de la pièce de construction de palier (70).
  5. Tête de laminage radiale selon la revendication 1, caractérisée en ce que le déplacement maximal de la tête de laminage par rapport à la pièce de construction de palier (70) est plus grand qu'il n'est nécessaire pour la libération du verrouillage.
  6. Tête de laminage radiale selon la revendication 4, caractérisée en ce que la butée (82) est formée par une tige et que le ressort (90) est un paquet de ressorts Belleville.
  7. Tête de laminage radiale selon l'une des revendications 1 à 6, caractérisée en ce que la butée (22) a la forme d'une tige de butée qui est logée dans une douille (106) placée en pouvant tourner autour de l'axe de laminage et la tige de butée est pourvue d'un filetage extérieur qui permet de la visser dans un filetage intérieur de la douille (106).
EP97121500A 1997-01-15 1997-12-06 Tête de roulage radial Expired - Lifetime EP0853991B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19701049 1997-01-15
DE19701049A DE19701049C1 (de) 1997-01-15 1997-01-15 Radialwalzkopf

Publications (2)

Publication Number Publication Date
EP0853991A1 EP0853991A1 (fr) 1998-07-22
EP0853991B1 true EP0853991B1 (fr) 2001-04-04

Family

ID=7817367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121500A Expired - Lifetime EP0853991B1 (fr) 1997-01-15 1997-12-06 Tête de roulage radial

Country Status (4)

Country Link
US (1) US5924317A (fr)
EP (1) EP0853991B1 (fr)
DE (2) DE19701049C1 (fr)
ES (1) ES2157042T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007031753B3 (de) * 2007-07-07 2008-11-27 Fette Gmbh Radialwalzkopf

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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
DE19701049C1 (de) 1998-06-04
ES2157042T3 (es) 2001-08-01
EP0853991A1 (fr) 1998-07-22
DE59703292D1 (de) 2001-05-10

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