DE102005033651A1 - Method and device to smooth out dents in metal sheets using magnets whereby device is placed on metal using strong magnets and metal sheet is repaired using tensile force - Google Patents

Method and device to smooth out dents in metal sheets using magnets whereby device is placed on metal using strong magnets and metal sheet is repaired using tensile force Download PDF

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Publication number
DE102005033651A1
DE102005033651A1 DE200510033651 DE102005033651A DE102005033651A1 DE 102005033651 A1 DE102005033651 A1 DE 102005033651A1 DE 200510033651 DE200510033651 DE 200510033651 DE 102005033651 A DE102005033651 A DE 102005033651A DE 102005033651 A1 DE102005033651 A1 DE 102005033651A1
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Germany
Prior art keywords
metal
magnets
tensile force
force
repaired
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DE200510033651
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German (de)
Inventor
Stefan Witte
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Individual
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Individual
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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
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06—Removing local distortions
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Abstract

Using one or more strong magnets, the device is placed on the metal whose dents or bumps are to be removed and the metal is repaired using tensile force. The device can have attachments in different shapes, and of different strengths. It can use permanent magnets as well as electro-magnets. Functionally, the device used to apply forces onto the metal has a spring to reduce the tensile force, whose force works counter to the magnetic force.

Description

Bei bisherigen Verfahren wird eine Beule beispielsweise mittels Klebetechnik rausgezogen.at Previous method is a bump, for example by means of adhesive technology pulled out.

Dieses ist durch das Aufbringen des Klebers und der damit verbundenen Härte- und Trockenzeit relativ arbeitsintensiv. Zudem wird hier das Material Kleber verbraucht und ist in der Regel nicht für weitere Arbeitschritte verfügbar.This is by the application of the adhesive and the associated hardness and Drying time relatively labor-intensive. In addition, here is the material glue consumed and is usually not available for further work steps.

Des weiteren existieren Verfahren in dem Löcher in die Bleche gebohrt werden um mittels eingeschraubter Hacken durch Zugkräfte das Blech zu Verformen. Die Löcher werden nach dem Vorgang wieder durch Schweißen oder Spachteln verschlossen.Of There are further methods in which holes are drilled in the sheets be by means of screwed hoes by tensile forces the Sheet metal to deform. The holes are closed again after welding by welding or filling.

Beschreibung:Description:

Die Erfindung betrifft Verfahren und Vorrichtung zum Ausbeulen von Blech mittels Magnethaltekräften.The The invention relates to methods and apparatus for the buckling of sheet metal by means of magnetic holding forces.

Durch die Entwicklung neuer Materialien und Legierungen z.B. Neodym ist möglich geworden sehr hohe Haltekräften bei Magneten zu erzielen.By the development of new materials and alloys e.g. Neodymium is possible become very high holding forces to achieve with magnets.

Durch das vorliegende Verfahren, diese Kraft über einen Magneten direkt auf das Stahlblech einwirken zu lassen, wird eine Beule innerhalb kurzer Zeit ohne zusätzliches Verbrauchsmaterial rausgezogen.By the present method, this force on a magnet directly on letting the steel sheet work becomes a bump within a short time without additional Consumables pulled out.

Dieses reduziert die Zeit und somit die Kosten für das Ausbeulen. Zudem wird eine weiter Beschädigung vermieden.This reduces the time and thus the cost of bulging. In addition, will a further damage avoided.

Durch das Aufsetzen eines oder mehrerer Magneten auf ein Stahlblech ist es möglich, diese Magnetkraft als Zugkraft auf das Blech wirken zu lassen.By the placement of one or more magnets on a steel sheet it is possible to let this magnetic force act as a tensile force on the sheet.

Das Verfahren kann durch Hinterlegen von ferromagnetischem Material oder Magneten auch auf Nichteisenmetalle angewendet werden.The Method can be done by depositing ferromagnetic material or magnets are also applied to non-ferrous metals.

Es ist somit auch möglich die mögliche Haftkraft des Magneten zu erhöhen.It is thus possible the possible To increase the adhesive force of the magnet.

Vorrichtung:Contraption:

Die Vorrichtung (2) wird über den Magnet (1), Magnethalter (2) und Zugstange (3) an der zu entfernenden Beule (5) Angesetzt. Durch ausüben einer Zugkraft FZ auf den Griff (7) wirkt diese Kraft bis zur maximalen Haltekraft des Magnetes (1) auf das Stahlblech (6) und zieht es somit mit maximal dieser Kraft auch zurück.The device ( 2 ) is transmitted via the magnet ( 1 ), Magnetic holder ( 2 ) and drawbar ( 3 ) on the bump to be removed ( 5 ) Attached. By exerting a tensile force F Z on the handle ( 7 ) this force acts up to the maximum holding force of the magnet ( 1 ) on the steel sheet ( 6 ) and thus retracts it with maximum of this force.

Die Zugkraft kann manuell über eine Zugstange durch Ziehen des Bedieners auf das Werkstück gebracht werden (2).The pulling force can be manually applied to the workpiece via a pull rod by pulling the operator ( 2 ).

Zur Verringerung der durch den Bediener aufzubringenden Zugkräfte wird eine Druckfeder (8) vorgesehen. (3)To reduce the applied by the operator tensile forces is a compression spring ( 8th ) intended. ( 3 )

Alternativ ist es auch möglich die Kraft durch Schlagwerk aufzubringen (4). Hierbei wird durch eine bewegte Masse (M), die eine abrupte Verzögerung erfährt, eine Zugkraft auf die Vorrichtung ausgeübt.Alternatively, it is also possible to apply the power by percussion ( 4 ). In this case, a tensile force is exerted on the device by a moving mass (M), which experiences an abrupt deceleration.

Eine Hebelvorrichtung ermöglicht die gezielte Anbringung und Dosierung der Zugkraft zur Blechverformung (5).A lever device allows the targeted attachment and metering of the tensile force for sheet metal deformation ( 5 ).

Zur Fixierung der Abziehvorrichtung wird ein Gegenhalter (9) vorgesehen.To fix the puller is a counter-holder ( 9 ) intended.

Die Ausübung der Kraft kann manuell, maschinell bspw. elektrisch, hydraulisch oder pneumatisch erfolgen.The exercise the force can be manual, mechanical, for example, electric, hydraulic or pneumatically.

Je nach Größe der Beule und der Beschaffenheit des Bleches sind unterschiedliche Vorsätze 6 vorgesehen.Depending on the size of the bump and the nature of the sheet are different intentions 6 intended.

Variationen:variations:

  • 1. Form: Kugel, Quader Scheibe halbrund etc.1st form: ball, square disc half round, etc.
  • 2. Größe: Abmessungen der unter 1. genannten Formen2nd size: dimensions the forms mentioned under 1.
  • 3. Magnetisierung: Die Stärke der Magnetisierung und somit die Kraft3. Magnetization: the strength the magnetization and thus the force
  • 4. Anzahl der Magneten.4. Number of magnets.

Die Kraft des Magneten kann auf folgende Arten auf das Metall wirken

  • 1. Direkt auf dem Metall
  • 2. Durch eine Beschichtung beispielsweise galvanische Beschichtung oder Lack
  • 3. Durch eine Schutzschicht beispielweise aus Kunststoff, Stahl oder Nichteisen Metalle in Kombination mit 1. und 2.
  • 4. Berührungslos über einen Luftspalt.
The force of the magnet can act on the metal in the following ways
  • 1. Directly on the metal
  • 2. By a coating, for example, galvanic coating or paint
  • 3. By a protective layer, for example made of plastic, steel or non-ferrous metals in combination with 1st and 2nd
  • 4. Non-contact via an air gap.

Claims (6)

Verfahren und Vorrichtung zum Entfernen von Beulen in Blechen durch Zugkräfte mittels eines Magneten.Method and device for removing bumps in sheets by tensile forces by means of a magnet. Verfahren nach 1. mit Vorsätzen unterschiedlicher Formen der Aufsätze.Method according to 1. with intentions of different shapes the essays. Verfahren nach 1. mit Vorsätzen unterschiedlicher Stärke der AufsätzeMethod according to 1. with intentions of different strength of Essays Verfahren nach 1 mit sowohl permanenterregten sowie Elektro-MagnetenMethod according to FIG. 1 with both permanently excited and Electro-magnet Die Vorrichtung, Funktionsweise nach 1., mit der über einen Magneten die Zugkräfte auf des zu verformende Material eingebracht werden. verfügt zur Verringerung der Zugkraft mit einer Feder versehen werden, deren Kraft gegen die Magnetkraft wirkt.The device, functioning according to 1., with the over one Magnets the tensile forces be introduced on the material to be deformed. has a reduction the tensile force to be provided with a spring whose force against the magnetic force acts. Vorrichtung nach Verfahren 1, die die Zugkräfte über eine Hebelvorrichtung aufbringt.Device according to method 1, the tensile forces over a Apply lever device.
DE200510033651 2005-07-19 2005-07-19 Method and device to smooth out dents in metal sheets using magnets whereby device is placed on metal using strong magnets and metal sheet is repaired using tensile force Withdrawn DE102005033651A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200510033651 DE102005033651A1 (en) 2005-07-19 2005-07-19 Method and device to smooth out dents in metal sheets using magnets whereby device is placed on metal using strong magnets and metal sheet is repaired using tensile force

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510033651 DE102005033651A1 (en) 2005-07-19 2005-07-19 Method and device to smooth out dents in metal sheets using magnets whereby device is placed on metal using strong magnets and metal sheet is repaired using tensile force

Publications (1)

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DE102005033651A1 true DE102005033651A1 (en) 2007-01-25

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DE200510033651 Withdrawn DE102005033651A1 (en) 2005-07-19 2005-07-19 Method and device to smooth out dents in metal sheets using magnets whereby device is placed on metal using strong magnets and metal sheet is repaired using tensile force

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008006830B3 (en) * 2008-01-30 2009-06-04 Karel Prof. Dr.-Ing. Mazac Method and device for removing dents from an electrically conductive, flat structure to form a smooth structure
CN102858476A (en) * 2010-04-14 2013-01-02 A·威尔金森 Freely rotating magnetic tip with surface trace for dent removal rod
DE102017107955A1 (en) 2017-04-12 2018-10-18 Friedrich L. Strobel Apparatus and method for buckling a sheet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159515A1 (en) * 1971-12-01 1973-06-07 Otto Spethmann DEVICE FOR REMOVING DENTINGS ON THE SHEET METAL BODY OF VEHICLES
DE29615666U1 (en) * 1996-09-09 1997-02-27 J. Bayer Feinwerk- und Elektrotechnik GmbH + Co., 78087 Mönchweiler Sheet metal working device
DE10143255A1 (en) * 2001-08-28 2003-03-20 Adolf Wuerth Gmbh & Co Kg Adhesive adapter for dent removal device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159515A1 (en) * 1971-12-01 1973-06-07 Otto Spethmann DEVICE FOR REMOVING DENTINGS ON THE SHEET METAL BODY OF VEHICLES
DE29615666U1 (en) * 1996-09-09 1997-02-27 J. Bayer Feinwerk- und Elektrotechnik GmbH + Co., 78087 Mönchweiler Sheet metal working device
DE10143255A1 (en) * 2001-08-28 2003-03-20 Adolf Wuerth Gmbh & Co Kg Adhesive adapter for dent removal device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008006830B3 (en) * 2008-01-30 2009-06-04 Karel Prof. Dr.-Ing. Mazac Method and device for removing dents from an electrically conductive, flat structure to form a smooth structure
EP2085161A1 (en) 2008-01-30 2009-08-05 Karel Mazac Method and device for removing dents from an electrically conductive, flat structure in order to create a smooth structure
CN102858476A (en) * 2010-04-14 2013-01-02 A·威尔金森 Freely rotating magnetic tip with surface trace for dent removal rod
DE102017107955A1 (en) 2017-04-12 2018-10-18 Friedrich L. Strobel Apparatus and method for buckling a sheet

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