EP0016422B1 - Machine à dresser pour tubes à parois minces - Google Patents

Machine à dresser pour tubes à parois minces Download PDF

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Publication number
EP0016422B1
EP0016422B1 EP80101302A EP80101302A EP0016422B1 EP 0016422 B1 EP0016422 B1 EP 0016422B1 EP 80101302 A EP80101302 A EP 80101302A EP 80101302 A EP80101302 A EP 80101302A EP 0016422 B1 EP0016422 B1 EP 0016422B1
Authority
EP
European Patent Office
Prior art keywords
frames
roller
rotation
rollers
frame
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
Application number
EP80101302A
Other languages
German (de)
English (en)
Other versions
EP0016422A1 (fr
Inventor
Hans Lindemann
Wolfgang Dr.-Ing. Dipl.-Phys. Lindemann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT80101302T priority Critical patent/ATE4176T1/de
Publication of EP0016422A1 publication Critical patent/EP0016422A1/fr
Application granted granted Critical
Publication of EP0016422B1 publication Critical patent/EP0016422B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/06—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged inclined to a revolving flier rolling frame

Definitions

  • the invention relates to a straightening machine consisting of a plurality of individual machines arranged one behind the other in the direction of movement of a thin-walled tube, each with a frame that can be driven all round, according to the preamble of claim 1.
  • Such a generic straightening machine by means of which the thin-walled tube can be secured against twisting and which is provided with rollers that can be adjusted transversely to the tube and that can be inclined relative to the tube axis, the rotational speeds of the frames that can be driven in the opposite direction of rotation or the inclined positions of the rollers of the individual machines in the sense of a train structure in the tube can deviate or deviate from each other, the pivot axis of the roller holders arranged in the two drivable frames are each arranged in a plane transverse to the axis of rotation of the frame, in each of the frames at least one roller holder supporting a roller is from the DE-A-2 020 915 is known.
  • a gauge for the pipe has educational roles.
  • the axis of rotation of a straightening frame is offset from the axes of the two adjacent straightening frames, as a result of which the axes of the gauges formed by the straightening rollers are also offset from one another. Successive straightening frames run in opposite directions.
  • the directional effect is achieved in this known straightening machine only by the deflection of the tube, which is caused by the axial displacement of one frame relative to the two adjacent frames, in particular since the teaching formed by the straightening rollers corresponds to the diameter of the tube to be straightened.
  • the frames carrying the straightening rollers are slidably arranged on a fixed, rotatable faceplate. This makes the construction of this known straightening machine very complicated.
  • the gauge formed by the straightening rollers of the housing axially offset from the other housings can be smaller than the nominal diameter of the pipe to be straightened.
  • the invention is based on the consideration that thin-walled pipes have to be plastically deformed in order to be able to be properly straightened, which can be done by pulling, pushing, bending, twisting or by a combination of these influences.
  • the invention is based on the object to straighten thin-walled pipes perfectly straight, to maintain the circular cross-section of the pipe to be straightened or to reduce the deviation from the circular ring shape and, if necessary, also to provide the outer surface of thin-walled pipes with a bare surface over the entire surface.
  • the given instruction deliberately causes such a deformation.
  • the circumferential cross-sectional deformation is used for straightening. Due to the correspondingly high rotational speed of the frame, the blunt pipe surface ensures that no bare lanes are visible because the lanes overlap.
  • the rollers arranged in the frame are positioned with respect to the axis of rotation of the frame so that they can themselves generate the feed of the pipe to be straightened and roll on the pipe surface, ie do not slide on this surface.
  • the speed of the second frame should be slightly higher than the speed of the first frame, but you can also choose the angle of attack of the rollers that are arranged in the second frame, slightly larger than the angle of attack of the rollers arranged in the first frame, so that tube to be straightened between the two frames is under slight tension.
  • roller holders each bearing a roller, opposite each other in such a way that their pivot axes lie on a straight line intersecting the axis of rotation of the corresponding frame, and the roles with the same Distance from the axis of rotation of the corresponding frame are set obliquely.
  • each roller It is also expedient to form the spherical outer surface of each roller from several sections of different curvatures, of which at least one section has a radius of curvature between 500 mm and infinity.
  • the roll holders are also designed in a manner known per se to be movable in a controlled manner in the direction of the frame rotation axis during the insertion and runout of the pipe to be straightened with rotating frames.
  • the distance between the individual machines can also be changed so that the reel seat, the reels for the reels, the reels for diameter, the angular position, etc. can be prepared outside the straightening machine so that the exchange can be accelerated, so that each one is easily accessible.
  • rollers arranged on the rapidly rotating frame center the material to be straightened in the straightening machine, it is advantageous, in particular if only one or two rollers are provided per frame, for the pipe to be straightened in the area of the frame supports in the hollow cylindrical frame there Leadership tools.
  • a thin-walled tube 1 is fed through pairs of intake rollers 2 to a frame 3 which can be driven all round and which is supported by a bearing 4 or the like via a pulley. 5 can be driven in one direction of rotation.
  • a roller holder 6 is arranged obliquely adjustable about a pivot axis 7, this pivot axis 7 lies in a plane transverse to the frame axis of rotation 8 and intersects the frame axis of rotation.
  • the roller 9, which is freely rotatably mounted in the roller holder 6, has a spherical lateral surface which is formed from several sections of different curvature.
  • roller holders 6, each supporting a roller 9, in the frame 3 so that their pivot axes 7 lie in a straight line intersecting the axis of rotation 8, the rollers 9 being set at the same distance from this axis of rotation 8. More than two rollers 9 can also be arranged in the transverse plane.
  • the second frame 10 is through a bearing 11 about the same axis of rotation 8 as the frame 3 or the like via a pulley. 12 drivable, but in the opposite direction to the direction of rotation of the frame 3. It also has at least one roll holder 14 which rotates freely around a roll 13 and which is arranged obliquely in the frame 10 about a pivot axis 15. It is more expedient to also provide two roll holders 14 in the frame 10, which can be adjusted obliquely about the same pivot axis 15.
  • Extending rollers 18 are arranged behind the second frame 10 in a manner known per se and, like the pairs of intake rollers 2, prevent the rotation of a pipe 1 to be straightened.
  • the drivable frame 10 is arranged in the direction of the frame axis of rotation 8 towards and away from the frame 3 in order to be able to replace the roller holders 6 and 14 relatively quickly, although the assignment of these roller holders 6 and 14 to the frame 3 and 10 is shown in the drawing as if the roll holder could not be removed.
  • the two frames 3 and 10 are moved towards each other contrary to the representation in the drawing.
  • guide means 20 and 21 for the material 1 to be straightened are arranged in the area of the bearings 4 and 11 of the frames 3 and 10, in which the latter are hollow-cylindrical.
  • These consist of a hollow cylindrical bush, the inside diameter of which corresponds approximately to the outside diameter of the pipes 1 to be straightened.
  • This bushing can be made of Teflon or another material that has a low coefficient of friction compared to the material of the goods.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Wire Processing (AREA)

Claims (5)

1. Machine à dresser formée de plusieurs machines individuelles disposées les unes à la suite des autres dans le sens du déplacement d'un tube à paroi mince (1) et comprenant chacune un châssis (3, 10) pouvant être entraîné en rotation, à travers lesquelles le tube à paroi mince (1) peut passer sans pouvoir tourner (galets 2, 18), comportant des galets (9, 11) pouvant être réglés transversalement au tube (1) et pouvant être positionnés obliquement par rapport à l'axe du tube, les vitesses de rotation des châssis (3,10) pouvant être entraînés en sens opposé et les positions obliques des galets (9, 10) des machines individuelles étant différentes ou pouvant différer l'une de l'autre, en vue d'exercer une traction dans le tube (1), les axes de pivotement (7, 15) des porte-galets (16, 14) montés dans les deux châssis (3, 10) pouvant être entraînés étant disposés chacun dans un plan transversal à l'axe de rotation (8) des châssis (3, 10) et, dans chaque châssis (3, 10) est monté au moins un porte-galet (6, 14) portant un galet (9, 13), caractérisée en ce que deux machines individuelles seulement (3, 9 ou 10, 13) à axe de rotation commun sont prévues, chaque galet (9, 13) présente une surface périphérique bombée et le nombre de révolutions des châssis (3, 10) est mesuré de telle façon que la largeur de polissage effective soit supérieure à l'avancement du produit à dresser par révolution.
2. Machine à dresser suivant la revendication 1, caractérisée en ce que, dans chaque châssis (3, 10) pouvant être entraîné en rotation, deux porte-galets (6, 14), portant chacun un galet (9, 13), sont montés en opposition l'un à l'autre de telle sorte que leurs axes de pivotement (7, 15) se trouvent sur une ligne droite coupant l'axe de rotation (8) du châssis et les galets (9, 13) sont positionnés à égale distance de l'axe de rotation (8) du châssis.
3. Machine à dresser suivant la revendication 1, caractérisée en ce que dans chaque châssis (3, 10) pouvant être entraîné en rotation sont prévus plus de deux porte-galets (6,14) portant chacun un galet (9, 13) et les distances séparent leurs galets de l'axe de rotation (8) du châssis ainsi que leurs positions obliques sont en substance pareilles.
4. Machine à dresser suivant une ou plusieurs des revendications 1 à 3, caractérisée en ce que la surface périphérique bombée de chaque galet (9,13) est formée de plusieurs sections de courbures différentes parmi lesquelles au moins une section présente un rayon de courbure compris entre 500 mm et l'infini.
5. Machine à dresser suivant une ou plusieurs des revendications 1 à 4, caractérisée en ce que dans la zone de chaque palier de châssis (4, 11), des moyens de guidage (20, 21) sont chaque fois prévus dans le châssis (3, 10) qui, à cet endroit, a la forme d'un cylindre creux.
EP80101302A 1979-03-19 1980-03-13 Machine à dresser pour tubes à parois minces Expired EP0016422B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80101302T ATE4176T1 (de) 1979-03-19 1980-03-13 Richtmaschine fuer duennwandige rohre.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792910705 DE2910705A1 (de) 1979-03-19 1979-03-19 Aus zwei in der bewegungsrichtung zu richtenden gutes hintereinander angeordneten einzelmaschinen mit je einem umlaufend antreibbaren rahmen bestehende richtmaschine fuer duennwandige rohre
DE2910705 1979-03-19

Publications (2)

Publication Number Publication Date
EP0016422A1 EP0016422A1 (fr) 1980-10-01
EP0016422B1 true EP0016422B1 (fr) 1983-07-20

Family

ID=6065784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80101302A Expired EP0016422B1 (fr) 1979-03-19 1980-03-13 Machine à dresser pour tubes à parois minces

Country Status (3)

Country Link
EP (1) EP0016422B1 (fr)
AT (1) ATE4176T1 (fr)
DE (1) DE2910705A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111958357A (zh) * 2020-08-04 2020-11-20 安庆锦泰金属材料科技有限公司 一种淬火抛光带涂油装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20080634A1 (it) * 2008-10-15 2010-04-16 Schnell Spa Apparecchiatura per raddrizzare profilati metallici e simili
CN104971968B (zh) * 2014-04-11 2017-04-26 浙江久而久化学有限公司 一种铝管彩印自动放料装置
CN109773606B (zh) * 2018-12-26 2021-06-08 芜湖恒美电热器具有限公司 钢带卷成钢管打磨校正装置
CN111151595B (zh) * 2020-01-12 2023-11-03 浙江同诚合金铜管有限公司 一种铜合金管矫直润滑热处理下料生产制备方法
CN113333508B (zh) * 2021-06-02 2023-02-24 湖州远拓输送设备有限公司 一种锥辊整圆机床
CN114951499B (zh) * 2022-05-30 2025-03-18 南昌云华起智能科技有限公司 一种直线电机制造用理线装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1032066B (de) * 1955-09-29 1958-06-12 Th Calow & Co Richtmaschine fuer Rohre, Wellen od. dgl.
DE1140052B (de) * 1958-04-18 1962-11-22 Th Calow & Co Richtmaschine mit umlaufendem Rahmen bzw. Trommel
DE1800297B2 (de) * 1968-10-01 1976-08-12 Wsesojusnynautschno-issledowatelskij i projektno-konstruktorsky institut metallurgitscheskowo maschinostrojenia, Moskau Maschine zum richten vorwiegend duennwandiger rohre
DE2020915C3 (de) * 1970-04-29 1974-09-12 Wsesojusnij Nautschno-Issledowatel' Skij I Projektno-Konstruktorskij Institut Metallurgitscheskowo Maschinostrojenija, Moskau Richtmaschine für Rohre
DE2411880A1 (de) * 1974-03-12 1975-09-18 Lindemann Hans Richtmaschine fuer strangfoermige werkstuecke

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111958357A (zh) * 2020-08-04 2020-11-20 安庆锦泰金属材料科技有限公司 一种淬火抛光带涂油装置

Also Published As

Publication number Publication date
DE2910705A1 (de) 1980-10-02
EP0016422A1 (fr) 1980-10-01
ATE4176T1 (de) 1983-08-15

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