EP0489345A2 - Dispositif pour le marquage électrochimique de pièces - Google Patents

Dispositif pour le marquage électrochimique de pièces Download PDF

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Publication number
EP0489345A2
EP0489345A2 EP91120237A EP91120237A EP0489345A2 EP 0489345 A2 EP0489345 A2 EP 0489345A2 EP 91120237 A EP91120237 A EP 91120237A EP 91120237 A EP91120237 A EP 91120237A EP 0489345 A2 EP0489345 A2 EP 0489345A2
Authority
EP
European Patent Office
Prior art keywords
workpiece
tool holder
tool
electrolyte
metallic
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.)
Withdrawn
Application number
EP91120237A
Other languages
German (de)
English (en)
Other versions
EP0489345A3 (en
Inventor
Saulius Baublys
Ludwig Rommel
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
Publication of EP0489345A2 publication Critical patent/EP0489345A2/fr
Publication of EP0489345A3 publication Critical patent/EP0489345A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/413—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material for metal

Definitions

  • the present invention relates to a device for electrochemical labeling of a metallic surface of a workpiece according to the preamble of claim 1.
  • the tool holder is provided on its flat lower surface with a central recess within which the tool is held in the form of pins, the front ends of the pins being aligned with the base of the recess lie in one plane.
  • the tool holder with its lower surface areas surrounding the recess lies on the metallic surface of the workpiece to be marked during the marking process.
  • the electrolyte is introduced from outside into the space formed by the recess between the inscription pins of the tool and the surface of the workpiece to be inscribed.
  • the object of the present invention is to provide a device of the type mentioned at the outset which enables electrochemical labeling of metallic surfaces of corresponding workpieces without the tool holder and workpiece touching.
  • the measures according to the invention make it possible to store the tool holder in a floating manner on the workpiece surface by means of the electrolyte used for electrochemical labeling during the labeling of the workpiece surface and the movement of the tool holder relative to the workpiece surface. This does not result in the tool holder touching the workpiece surface.
  • This floating support is maintained by the physical phenomenon of the "hydrodynamic paradox", the gap through which the electrolyte supplied under pressure flows is very small, so that the tool holder travels along the workpiece surface while maintaining this gap.
  • Another advantage is the simpler structure, since the tool holder can be used to supply the electrolyte at the same time.
  • the tool holder can consist, for example, of methacrylic acid resin.
  • the device 10 shown in the drawing in accordance with a preferred exemplary embodiment of the present invention serves for the electro-chemical labeling of the metallic surface 11 of a workpiece 12 shown here as a thin tube.
  • the metallic surface 11 or the workpiece 12 itself, if it is metallic overall is connected in a manner not shown to one pole, for example the positive pole of a DC voltage source, the voltage of which is between 6 and 20 volts.
  • the workpiece 12 rests on roller units 16-18, the roller pairs of which are rotatably mounted.
  • the opposing rollers of each pair of rollers 19 are arranged and designed in such a way that cylindrical workpieces 12 of different external diameters can be rotatably placed.
  • the roller units 16-18 have U-shaped bearing blocks 21 which are fastened to the base of a trough 22 which is held on a work table 23.
  • a tool 13 is arranged above the workpiece 12 to be labeled, the tool holder 14 of which consists of an electrically non-conductive material, for example of plastic, for example methacrylic acid resin (a non-halogen-containing plastic) and, according to the two double arrows of FIG. 1, both vertically in Z -Direction and horizontally movable back and forth in the X direction.
  • the tool holder 14 is held by a clamp 26 which projects from the lower edge of a first slide 27 or projects vertically, which slide 27 can be moved up and down on a first guide 28 according to the double arrow Z.
  • the movement of the first carriage 27 takes place in a manner not shown either with the aid of an electric motor or a pneumatic drive.
  • the tool holder 14 can be raised and lowered in such a way that it is held at the free end of a pivoted arm.
  • the first guide 28 is fastened to a second slide 31 which can be moved on a second guide 32 by means of a motor drive 33 in the horizontal X direction, that is to say in the direction of the longitudinal extent of the workpiece 12.
  • the tool 13 has two electrodes 36 and 37 which are embedded in the tool holder 14.
  • the tool holder 14 is elongated cuboid and has on its underside a groove 38 which is semicircular in cross section, the radius of which is a few 1/100 mm, preferably 2/100 mm larger than the outer radius of the cylindrical surface 11 of the workpiece or tube to be inscribed 12.
  • the electrodes 36 and 37 which have the shape of thin metallic pins, run perpendicular to the channel surface 38 over the longitudinal central axis of the channel 38.
  • Her writing tips 39 lie in the plane of the base surface 41 of the channel 38.
  • the two electrodes 36 and 37 are, for example, of different thicknesses and lie on both sides of a transverse central axis of the tool holder 14.
  • an outlet opening 42 of a liquid bore 43 is provided which extends from the base surface 41 of the groove 38 and which flows into a parallel to the groove 38 running supply bore 44 opens out, which an end face 46 of the tool holder 14 occurs outdoors.
  • This feed hole 44 is provided on the end face 46 with an internally threaded bore 47, into which the nipple of a hose 48 can be detachably screwed.
  • the electrolyte liquid for electrochemical labeling is supplied through this tube 48.
  • an internally threaded connection nipple 51, 52 made of metal is inserted, which is electrically connected to the relevant electrode 36, 37 by means of an electrical feed line 53, 54 which is embedded in the tool holder 14 and which is for detachable screwing Connect to an electrical lead 56, 57 is provided.
  • the electrical feed line 56, 57 can be connected to the other pole, the negative pole of the DC voltage source, via a corresponding, for example, programmable switch.
  • the tool 13 or the tool holder 14 is brought onto the surface 11 under its own weight.
  • the hose 48 is pressed through the hose 48 under a pressure of 2-4 bar, preferably 3 bar, into the tool holder 14 and brought out of the outlet opening 42 onto the workpiece surface 11 to be labeled.
  • a gap 58 shown exaggeratedly wide in FIG.
  • the tool 13 which is mounted with its channel base 41 floating on the workpiece surface 11, is moved back and forth in the X direction in accordance with the labeling to be carried out.
  • the workpiece 12 is driven in rotation. This is done with the help of a friction roller 61 which is driven by a motor 62.
  • the unit consisting of friction roller 61 and motor 62 is held on a swivel arm 63 which, in a manner not shown, can be raised in a manner not shown for inserting another workpiece 12, for example also with a larger or smaller diameter.
  • the frictional connection between the friction roller 61 and the cylindrical workpiece 12 takes place essentially under the dead weight of the unit 61, 62 mentioned. It goes without saying that both the friction roller 61 and the tool 13 can be pressed actively, for example pneumatically, onto the workpiece 12.
  • the workpiece is provided with a flat metallic surface to be labeled.
  • the tool is provided with a flat surface area and can be moved relative to the workpiece in the two coordinates X and Y lying in the labeling plane. Otherwise the tool is of the same design, in particular the floating bearing is maintained.
  • the tool 13 with only one electrode or else with more than two electrodes. Furthermore, if necessary, one or more further outlet openings for the electrolyte can be provided.
  • a tool holder 14 provided with a corresponding inner radius of the groove 38 is to be provided. For this purpose, the tool holder 14 is held on the clamp 26 in an easily replaceable manner by means of lateral threaded bores 66.
  • the tool holder 14 is adapted to the surface 11 of a workpiece 12 to be inscribed in such a way that, under the pressure of the supplied electrolyte, the tool holder 14 is floatingly supported on the workpiece 12 while maintaining a very small gap 58 under the effect of the physical phenomenon of "hydrodynamic paradox" takes place.
  • one or more of the electrodes 36, 37 for labeling the workpiece surface 11 can be connected to voltage simultaneously and continuously or periodically.

Landscapes

  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP19910120237 1990-12-05 1991-11-27 Electrochemical device for marking of workpieces Withdrawn EP0489345A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4038717A DE4038717A1 (de) 1990-12-05 1990-12-05 Einrichtung zum elektro-chemischen beschriften von werkstuecken
DE4038717 1990-12-05

Publications (2)

Publication Number Publication Date
EP0489345A2 true EP0489345A2 (fr) 1992-06-10
EP0489345A3 EP0489345A3 (en) 1993-05-12

Family

ID=6419598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910120237 Withdrawn EP0489345A3 (en) 1990-12-05 1991-11-27 Electrochemical device for marking of workpieces

Country Status (3)

Country Link
US (1) US5207882A (fr)
EP (1) EP0489345A3 (fr)
DE (1) DE4038717A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19758083A1 (de) * 1997-12-30 1999-07-01 Anton Rodi Verfahren und Anordnung zum Beschriften der Oberfläche eines Körpers
CN105500935A (zh) * 2015-12-21 2016-04-20 南车二七车辆有限公司 一种交叉杆端头的打标工装
CN109576755A (zh) * 2019-01-17 2019-04-05 浙江东网健康科技有限公司 全自动双排上挂机
WO2019162361A1 (fr) * 2018-02-26 2019-08-29 Bke-Machines International Sa Traçage sur une tôle destinée à un usage en chaudronnerie

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5531874A (en) * 1994-06-17 1996-07-02 International Business Machines Corporation Electroetching tool using localized application of channelized flow of electrolyte
US8257572B2 (en) * 2008-03-28 2012-09-04 Tenaris Connections Limited Method for electrochemical plating and marking of metals
CN101264705B (zh) * 2008-04-30 2010-04-21 鞍山市庆隆机电有限公司 电腐蚀金属打标机用的感应式打标头
EP2995409B1 (fr) 2014-09-12 2019-03-27 Reuter GmbH & Co. KG Dispositif de marquage électrochimique

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290236A (en) * 1963-02-07 1966-12-06 Electromark Corp Electrolytic marking apparatus including stencil holder
US3410782A (en) * 1965-09-28 1968-11-12 Pryor Edward & Son Electrolytic etching apparatus
FR1585605A (fr) * 1968-04-29 1970-01-30
US3679558A (en) * 1970-08-06 1972-07-25 Edward Pryor Dev Ltd Electrolytic marking of metal objects
FR2335628A1 (fr) * 1975-12-16 1977-07-15 Commissariat Energie Atomique Dispositif electrolytique de marquage de pieces metalliques
DE2614974A1 (de) * 1976-04-07 1977-10-20 Bosch Gmbh Robert Vorrichtung zum anbringen alphanumerischer zeichen auf elektrischen miniaturbauteilen
DE2728256C3 (de) * 1977-06-23 1980-04-03 Saulius Dipl.-Ing. 7141 Neckarrems Baublys Werkzeug zum elektrochemischen Bezeichnen einer metallischen Oberfläche
DE2952136A1 (de) * 1979-12-22 1981-06-25 Saulius Dipl.-Ing. 7148 Remseck Baublys Verfahren zur herstellung eines werkzeuges fuer elektro-chemisches bezeichnen
DE3423309A1 (de) * 1984-06-23 1986-01-02 Saulius Dipl.-Ing. 7148 Remseck Baublys Arbeitskopf zum beschriften von werkstuecken
DE3507927A1 (de) * 1985-03-06 1986-09-11 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Verfahren und handgeraet zum halbmechanischen verzinken von blechoberflaechen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19758083A1 (de) * 1997-12-30 1999-07-01 Anton Rodi Verfahren und Anordnung zum Beschriften der Oberfläche eines Körpers
CN105500935A (zh) * 2015-12-21 2016-04-20 南车二七车辆有限公司 一种交叉杆端头的打标工装
WO2019162361A1 (fr) * 2018-02-26 2019-08-29 Bke-Machines International Sa Traçage sur une tôle destinée à un usage en chaudronnerie
BE1026112B1 (fr) * 2018-02-26 2019-10-17 Bke-Machines International Sa Traçage sur une tôle destinée à un usage en chaudronnerie
EA038843B1 (ru) * 2018-02-26 2021-10-27 Бке-Машинз Интернэшнл Са Способ разметки листового металла для применения при изготовлении изделий из листового металла
US11364729B2 (en) 2018-02-26 2022-06-21 Bke-Machines International Sa Tracing on a metal sheet intended for use in sheet metal work
CN109576755A (zh) * 2019-01-17 2019-04-05 浙江东网健康科技有限公司 全自动双排上挂机
CN109576755B (zh) * 2019-01-17 2023-11-28 浙江东网健康科技有限公司 全自动双排上挂机

Also Published As

Publication number Publication date
US5207882A (en) 1993-05-04
EP0489345A3 (en) 1993-05-12
DE4038717C2 (fr) 1992-12-24
DE4038717A1 (de) 1992-06-11

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