EP0398457A1 - Procédé et dispositif pour l'usinage des surfaces de corps creux - Google Patents

Procédé et dispositif pour l'usinage des surfaces de corps creux Download PDF

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Publication number
EP0398457A1
EP0398457A1 EP90250116A EP90250116A EP0398457A1 EP 0398457 A1 EP0398457 A1 EP 0398457A1 EP 90250116 A EP90250116 A EP 90250116A EP 90250116 A EP90250116 A EP 90250116A EP 0398457 A1 EP0398457 A1 EP 0398457A1
Authority
EP
European Patent Office
Prior art keywords
cutting tool
pendulum
hollow body
designed
drive
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.)
Ceased
Application number
EP90250116A
Other languages
German (de)
English (en)
Inventor
Peter Dipl.-Ing. Lehmann
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0398457A1 publication Critical patent/EP0398457A1/fr
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/40—Single-purpose machines or devices for grinding tubes internally

Definitions

  • the invention relates to a method for machining the inner surface of hollow bodies according to the preamble of claim 1 and a device for carrying it out.
  • a method and a device for grinding the inner surface of pipes is known, with the help of which the root layers of circular weld seams on already laid pipes can also be processed.
  • This device comprises a chassis from distributed over the pipe circumference and around 120 o staggered wheels which are in radial direction against the pipe inner surface adjustably hydraulically or pneumatically and enable centering of the device with respect to the tube axis.
  • On the outside of the device a plurality of radially outwardly adjustable motor-driven grinding devices with radially directed axes of rotation and cup-shaped grinding bodies are arranged.
  • special drive wheels are provided which are supported on the inner surface of the tube and set the entire device in rotation.
  • the rotation axis of the landing gear wheels which would otherwise allow the movement in the direction of the tube axis, o pivoted at 90, so that they can run in the circumferential direction.
  • a disadvantage of this known device is that sheet metal processing e.g. the root positions of circular welds is hardly possible. This requires an exact adjustment of the grinding wheel to the inner surface of the pipe at all times. If the grinding wheel is set too low, part of the material to be removed remains, while if the radial setting is too strong, a groove-shaped recess is formed on the inner surface of the pipe, which has an undesirable notch effect and also adversely affects the flow properties of the pipeline. Deviations in the pipe cross-sectional geometry from the ideal circular shape also lead to corresponding local material removals that are too low or too strong.
  • the object of the invention is therefore to improve the generic method in such a way that these disadvantages no longer occur and to provide an apparatus for carrying out this method.
  • a device according to the invention is characterized by the features of patent claim 2 and can be configured in an advantageous manner by the features of subclaims 2 to 11.
  • the device according to the invention has an equipment carrier 1, which is equipped with trolleys 13, so that the pipeline 3 can be traversed in the axial direction to the processing location (for example a welded seam or welded socket). Reaching the processing location can be monitored from the outside, for example, with the help of a video camera (not shown) or with a radioactive positioning lamp.
  • a clamping device which preferably consists of three offset by 120 o, hydraulically or pneumatically operated radially outwardly movable pressing dies 2 consists, the device carrier 1 can be rigidly fixed in the tube. 3
  • extensive centering of the device carrier 1 with respect to the pipe axis is also connected, although this centering is not a prerequisite for satisfactory operation of the device according to the invention.
  • the swivel axis 7 of the swivel drive 4 is aligned sufficiently parallel to the pipe axis.
  • this swivel drive 4 executes the feed movement of the cutting tool 6, which can be, for example, a grinding wheel or a milling cutter, in the form of a rotation.
  • a suspension 14 is rigidly attached to the rotatable part of the swivel drive 4.
  • the tool holder 5 with its drive motor is rotatably mounted with the pendulum axis 8.
  • the pendulum axis 8 is perpendicular to the pivot axis 7.
  • the tool holder 5 and thus the cutting tool 6 clamped therein can perform oscillating circular movements around the pendulum axis 8. These pendulum movements thus take place transversely to the feed direction (rotation about the pivot axis 7) of the cutting tool 6, that is to say in the case of machining a circular weld seam 12 transversely to the seam direction (FIG. 3).
  • a corresponding adjusting device 11 shown schematically in FIG. 1 is provided, which can be adjusted remotely and is preferably designed as a pneumatic or hydraulic double-piston system.
  • the distance sensor 10 which is preferably designed as a stylus with a wheel or ball head, is connected to the suspension 14 and therefore makes every pivoting movement of the tool holder 5. It is supported by spring force against the inner surface of the tube 3. If the stylus 10 is deflected or rebounded relative to a defined zero position, for example by closing electrical contacts or directly actuating hydraulic or pneumatic valves, the adjusting device 11 is caused to retract or extend the tool holder 5 with the cutting tool 6 in the radial direction until the zero position is reached again. In this way it can be ensured that the pivot axis 7 always maintains a constant vertical distance from the inner surface of the pipe, so that the tool 6 with its working surface thus always remains precisely adjusted to the inner surface of the pipe.
  • the cutting tool 6 can still exactly follow the inside surface of the pipe if the pipe geometry deviates from the ideal circular shape (for example in the case of pipe flattening).
  • the stylus 10 is variable in length (for example as a turning spindle).
  • An essential characteristic of the invention is the pendulum drive for the tool holder 5, which oscillates the cutting tool 6 e.g. generated during the feed along a circular weld.
  • the working surface of the cutting tool 6 constantly approaches the surface of the tube 3 in a circular path, "plunges" into it and moves away from it again.
  • a smooth transition between the unprocessed inner pipe surface and the machined area is always produced, even if the cutting tool 6 should be set a little too deep against the inner pipe surface. In such cases, it is practically possible to process e.g. Welding beads are ensured.
  • the device according to the invention can, however, not only be used in the manner described for machining root layers on circular weld seams, but is also suitable for other types of machining tasks in pipelines and containers.
  • the pendulum drive 9 can also be fixed in a desired angular position in order to be able to mill off an oblique surface using a correspondingly inclined milling tool.
  • FIGS. 1 to 3 Numerous modifications of the invention to the embodiment shown in FIGS. 1 to 3 are possible.
  • the swivel device 4 which have mutually independent adjustment and pendulum devices.
  • sensors can be used which work according to other physical principles (eg laser optics, ultrasound, capacitive or inductive displacement sensors, etc.).
  • the clamping device can also be operated electrically, magnetically or mechanically.
  • electric drives can also be used for the various drives.
  • a self-drive for the chassis 13 e.g. it can also be attached to a self-propelled access device or be moved using push rods. In these cases, skids can be used instead of a chassis. Further modifications are conceivable.
  • the method according to the invention can be carried out in a particularly advantageous manner if the functions of the device shown in the exemplary embodiment are operated largely automatically by means of a computer control, the individual drives being able to be optimally coordinated with one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Drilling And Boring (AREA)
EP90250116A 1989-05-16 1990-05-04 Procédé et dispositif pour l'usinage des surfaces de corps creux Ceased EP0398457A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3916113 1989-05-16
DE3916113A DE3916113A1 (de) 1989-05-16 1989-05-16 Verfahren und vorrichtung zur zerspanenden bearbeitung der innenoberflaeche von hohlkoerpern

Publications (1)

Publication Number Publication Date
EP0398457A1 true EP0398457A1 (fr) 1990-11-22

Family

ID=6380840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90250116A Ceased EP0398457A1 (fr) 1989-05-16 1990-05-04 Procédé et dispositif pour l'usinage des surfaces de corps creux

Country Status (4)

Country Link
US (1) US5111623A (fr)
EP (1) EP0398457A1 (fr)
JP (1) JPH0319761A (fr)
DE (1) DE3916113A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6080802A (en) * 1991-12-03 2000-06-27 Rohm And Haas Company Process for preparing an aqueous dispersion of composite particles including polymeric latex adsorbed to titanium dioxide
WO2011030119A1 (fr) * 2009-09-08 2011-03-17 Pipeline Technique Limited Procédé et appareil d'usinage d'alésages
EP2662605A1 (fr) * 2012-05-09 2013-11-13 Eisenmann AG Système d'enregistrement d'un profil transversal
WO2017153480A1 (fr) * 2016-03-10 2017-09-14 Areva Gmbh Manipulateur et unité de manipulation

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173882B1 (en) * 1998-05-12 2001-01-16 Chrysler Corporation Method and apparatus for holding a workpiece during welding
DE202004017425U1 (de) * 2004-11-10 2005-01-13 Böllhoff Verbindungstechnik GmbH Mess- und Sortiervorrichtung
US8479345B2 (en) * 2009-08-12 2013-07-09 Tdw Delaware, Inc. Speed control drive section with failsafe valve
US20110053458A1 (en) * 2009-08-27 2011-03-03 Miller Jonathon D Method and Apparatus for Through-Cut Verification
JP5431881B2 (ja) * 2009-11-12 2014-03-05 三菱電機株式会社 管材の溶接ビード測定方法並びに溶接ビード切削方法及び溶接ビード切削装置
DE102009055313B4 (de) * 2009-12-23 2011-09-22 Smb Schwede Maschinenbau Gmbh Bandantriebseinrichtung für eine Umreifungsmaschine
GB2561832A (en) * 2017-04-21 2018-10-31 Eaton Intelligent Power Ltd Arrangement for working a tube end
US11440154B2 (en) * 2017-11-28 2022-09-13 Samtech International, Inc. System and method for polishing metal surface

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929024A1 (de) * 1979-07-16 1981-02-05 Mannesmann Ag Vorrichtung zum innenschleifen von rohren
DE2949656A1 (de) * 1979-12-11 1981-06-19 Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen Vorrichtung zum anfasen bzw. entgraten von werkstuecken

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1503497A (en) * 1922-07-03 1924-08-05 American Optical Corp Lens-grinding machine
SU60417A1 (ru) * 1939-07-19 1940-11-30 Н.Д. Ильяшук Способ получени материала дл парафинировани пр жи перед в занием на трикотажных машинах
US3903658A (en) * 1974-11-21 1975-09-09 Lukens Steel Co Mobile oscillating spot grinder with pressure control means to produce a feathering effect
IT1096437B (it) * 1978-06-01 1985-08-26 Breda Termomeccanica Spa Apparecchiatura per la lavorazione automatica dei giunti in cilindri di grosso spessore
DD201264B1 (de) * 1981-09-25 1988-01-27 Kw Elbe Veb Vorrichtung zur innenbearbeitung von behaeltern und rohrleitungen
SU1155362A1 (ru) * 1983-11-03 1985-05-15 Предприятие П/Я А-1264 Устройство дл обработки швов внутри труб
SU1172682A1 (ru) * 1984-01-19 1985-08-15 Ростовский-на-Дону научно-исследовательский институт технологии машиностроения Устройство дл обработки сварных швов
SU1227267A1 (ru) * 1984-05-15 1986-04-30 Предприятие П/Я В-8772 Устройство дл очистки внутренней поверхности трубопровода
DE3446055A1 (de) * 1984-12-18 1986-06-26 Karl Dr. 7530 Pforzheim Elbel Verfahren und vorrichtung zum schleifen der innenflaechen grosslumiger gerader und gekruemmter rohre

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929024A1 (de) * 1979-07-16 1981-02-05 Mannesmann Ag Vorrichtung zum innenschleifen von rohren
DE2949656A1 (de) * 1979-12-11 1981-06-19 Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen Vorrichtung zum anfasen bzw. entgraten von werkstuecken

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, unexamined applications, M Sektion, Band 9, Nr. 135, 11. Juni 1985 THE PATENT OFFICE JAPANESE GOVERNMENT Seite 58 M 386 * JP - A - 60-16 310 ( KANSAI ) * *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6080802A (en) * 1991-12-03 2000-06-27 Rohm And Haas Company Process for preparing an aqueous dispersion of composite particles including polymeric latex adsorbed to titanium dioxide
WO2011030119A1 (fr) * 2009-09-08 2011-03-17 Pipeline Technique Limited Procédé et appareil d'usinage d'alésages
EP2662605A1 (fr) * 2012-05-09 2013-11-13 Eisenmann AG Système d'enregistrement d'un profil transversal
WO2017153480A1 (fr) * 2016-03-10 2017-09-14 Areva Gmbh Manipulateur et unité de manipulation

Also Published As

Publication number Publication date
DE3916113A1 (de) 1990-11-29
JPH0319761A (ja) 1991-01-28
DE3916113C2 (fr) 1991-05-02
US5111623A (en) 1992-05-12

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