EP0276439A1 - Procédé pour meuler intérieurement des torages longs de très petit diamètre dans des pièces et dispositif pour la mise en oeuvre de ce procédé - Google Patents

Procédé pour meuler intérieurement des torages longs de très petit diamètre dans des pièces et dispositif pour la mise en oeuvre de ce procédé Download PDF

Info

Publication number
EP0276439A1
EP0276439A1 EP87118373A EP87118373A EP0276439A1 EP 0276439 A1 EP0276439 A1 EP 0276439A1 EP 87118373 A EP87118373 A EP 87118373A EP 87118373 A EP87118373 A EP 87118373A EP 0276439 A1 EP0276439 A1 EP 0276439A1
Authority
EP
European Patent Office
Prior art keywords
wire
bore
base plate
clamping devices
workpiece
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.)
Granted
Application number
EP87118373A
Other languages
German (de)
English (en)
Other versions
EP0276439B1 (fr
Inventor
Günter Frohn
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 AT87118373T priority Critical patent/ATE61958T1/de
Publication of EP0276439A1 publication Critical patent/EP0276439A1/fr
Application granted granted Critical
Publication of EP0276439B1 publication Critical patent/EP0276439B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
    • B24B5/485—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies using grinding wires or ropes

Definitions

  • Bores with a diameter of 10 mm are still exactly up to a length of 100 mm, with a diameter of 6 mm still up to 60 mm, with a diameter of 2 mm up to 30 mm, with a diameter of 1 mm only up to 20 mm and with a diameter of 0.5 mm only up to 5 mm.
  • High dimensional accuracy on the inner walls of bores can be achieved by machining on honing machines.
  • the honing tool clamped and driven on one side can be hydraulically expanded in such a way that the honing stones lie against the bore wall with uniform pressure. While the tool rotates at high speed, the tool is moved back and forth in the axial direction or the movements are reversed.
  • a disadvantage of such a honing process is the fact that the honing tool guides itself independently in the bore and therefore adapts to the axis inaccuracies, so that sometimes such tools can only achieve insufficient axial parallelism of the inner wall of the bores. Because of the necessary tools, such honing processes are also limited to the use of bores with a relatively large inner diameter.
  • the object of the invention is to propose a method for internal grinding of long bores with extremely small diameters in workpieces, with which a high dimensional accuracy and parallelism of the inner wall of the bore is achieved.
  • a method which is characterized by the use of a rotating at high speed, slightly under tension its tensile strength, longitudinally reciprocating steel wire with high tensile strength with abrasives on its surface as a grinding tool, around which the workpiece with its bore to be machined rotates eccentrically and axially parallel to the wire while resting against the inner wall of the bore.
  • Steel wires should be used, the tensile strength of which is higher than 2100 Newton / mm2.
  • Such a method enables the internal grinding of bores of any length of any diameter, but in particular with an extremely small diameter, since a correspondingly tensile steel wire with a small diameter can be used as a grinding tool, which is clamped to slightly below its elastic limit.
  • the alignment of the bore or its inner wall on the tensioned wire leads to an extraordinarily high accuracy of the axis parallelism when the workpiece is appropriately set up and to high dimensional accuracy when using appropriate surface coatings of the wire or when using the grinding pastes.
  • a device which is characterized by two clamping devices which are driven in rotation by means of synchronously controlled drives and which are moved back and forth with a common base plate, between which the wire is held under tension and by means of a device which can be moved in a vertical direction onto the wire.
  • the workpiece rotatingly driving workpiece holder.
  • Such a device is preferably characterized by two clamping devices that can be set up on the base plate at a distance from one another for the grinding tool serving wire, of which at least one clamping device is displaceable and a pressure cylinder, preferably a hydraulic cylinder, is arranged between the two clamping devices.
  • the workpiece holder consists of two motor-driven rollers arranged parallel to the clamped wire as friction drive for a cylindrical workpiece to be machined. The rollers are mounted in a holder that can be set up with high accuracy in the vertical direction to the wire.
  • One clamping device is slidably arranged with its drive motor on a carriage on the machine table, while the other clamping device with its motor is fixed on the base plate.
  • the cylindrical workpiece to be machined for example a hard metal core, can be easily set up around the clamped wire serving as a grinding tool.
  • two clamping devices 4 and 5 are arranged on a back-and-forth base plate 1 at an adjustable distance from one another, between which a steel wire 2 serving as a grinding tool is held taut with a high tensile strength.
  • the tensile stress is slightly below the elastic limit of the wire.
  • a clamping device 4, together with its drive motor 42 and a belt drive 43 with a stand 41, is fixedly arranged on the base plate 1.
  • the second clamping device 5 is placed with its motor 52 and the belt drive 54 with a stand 51 on a carriage 53 which can be moved on the base plate 1.
  • the bearings of the rotatingly driven clamping device 4 and 5 are accordingly axially loadable, for example so-called shoulder bearings.
  • the workpiece 3 to be machined for example a long hard metal core, is aligned with its bore 31 around the wire 2 and aligned axially parallel.
  • the workpiece 3 rests on the workpiece holder designated overall by the number 6. It consists of two rollers 61, which are aligned exactly parallel to the wire 2 and are driven by the belt drive 65 and are mounted in a holder 62.
  • the holder can be moved exactly on the guides 64 with a block 63 in the vertical direction.
  • the workpiece 3 is set in rotation by the rollers 61.
  • the wire 2 held in tension rotates with a high number of wires, approximately 100,000 revolutions / minute, with its clamping devices 4 and 5.
  • the surface of the wire itself is coated with a diamond grit or an abrasive paste.
  • the workpiece 3 rotates eccentrically parallel to this wire, with the inner wall the bore 31 is ground.
  • the wire 2 with its clamping devices 4, 5 is moved back and forth in the axial direction by a correspondingly driven movement of the base plate 1.
  • the workpiece 3 can still be pressed against the wire 2 with a pressure roller 8 during its processing.
  • Workpieces with long continuous bores with extremely small bore diameters can be ground on a device according to the invention with the method according to the invention.
  • the diameter of the grinding wire is adapted to the bore.
  • bores with a diameter of 0.3 mm can be machined with exact dimensional accuracy and axis parallelism with almost any length of the bore.
EP87118373A 1987-01-17 1987-12-11 Procédé pour meuler intérieurement des torages longs de très petit diamètre dans des pièces et dispositif pour la mise en oeuvre de ce procédé Expired - Lifetime EP0276439B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87118373T ATE61958T1 (de) 1987-01-17 1987-12-11 Verfahren zum innenschleifen von langen bohrungen mit extrem geringem durchmesser in werkstuecken und vorrichtung zur durchfuehrung des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3701219A DE3701219C1 (de) 1987-01-17 1987-01-17 Verfahren zum Innenschleifen von Bohrungen mit geringem Durchmesser-/Laengenverhaeltnis
DE3701219 1987-01-17

Publications (2)

Publication Number Publication Date
EP0276439A1 true EP0276439A1 (fr) 1988-08-03
EP0276439B1 EP0276439B1 (fr) 1991-03-27

Family

ID=6318981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118373A Expired - Lifetime EP0276439B1 (fr) 1987-01-17 1987-12-11 Procédé pour meuler intérieurement des torages longs de très petit diamètre dans des pièces et dispositif pour la mise en oeuvre de ce procédé

Country Status (6)

Country Link
US (1) US4831783A (fr)
EP (1) EP0276439B1 (fr)
JP (1) JPS63180454A (fr)
AT (1) ATE61958T1 (fr)
DE (2) DE3701219C1 (fr)
ES (1) ES2023176B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113427333A (zh) * 2021-06-08 2021-09-24 大连理工大学 一种深孔抛光装置及抛光方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0631840A1 (fr) * 1993-06-28 1995-01-04 Urs Tschudin Rectifieuse cylindrique
JP4252077B2 (ja) * 2006-09-11 2009-04-08 昭和電工株式会社 円盤状基板の内周研磨方法
US7959492B2 (en) 2006-09-11 2011-06-14 Showa Denko K.K. Disk-shaped substrate inner circumference polishing method
CN109483344A (zh) * 2018-12-25 2019-03-19 苏州创易技研股份有限公司 线嘴内孔研磨机
CN111642871A (zh) * 2020-06-30 2020-09-11 福州依强珠宝首饰有限公司 一种新型结构的宝石及其制作工艺
CN111805316B (zh) * 2020-08-31 2021-01-08 山东鲁电线路器材有限公司 一种用于打磨复合绝缘子空心芯棒的打磨设备
CN114473660B (zh) * 2022-01-29 2022-12-16 南通海峰家居用品有限公司 一种塑料制品内表面打磨加工设备
CN115319558A (zh) * 2022-10-13 2022-11-11 江苏吉鼎金属制品有限公司 一种基于金属制品加工的打磨装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1428209A (en) * 1920-04-06 1922-09-05 Western Electric Co Mechanism for lapping diamond dies
CH483916A (de) * 1967-09-04 1970-01-15 Kunz Hans Grandiermaschine für Lagersteine
DE2347780B2 (de) * 1973-09-22 1980-05-29 Maschinenfabrik Gehring Gmbh & Co Kg, 7302 Ostfildern Honmaschine
FR2518003A1 (fr) * 1981-12-14 1983-06-17 Snecma Procede et dispositif de reconditionnement de trous de faible diametre

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US925233A (en) * 1909-03-02 1909-06-15 Edward Schmidmer Machine for polishing diamond draw-plates.
US2047055A (en) * 1934-06-01 1936-07-07 Heald Machine Co Grinding machine and method
US2369094A (en) * 1942-10-01 1945-02-06 Hamilton Watch Co Jewel oliving machine
US4069805A (en) * 1977-01-25 1978-01-24 Philip Sherman Wire apparatus for abrasive powder machining
JPS5845860A (ja) * 1981-09-10 1983-03-17 Toshiba Corp ラッピング装置
JPS5933511A (ja) * 1982-08-19 1984-02-23 Fanuc Ltd 加減速装置
DE3346291A1 (de) * 1983-12-21 1985-07-04 Siemens Ag Verfahren und vorrichtung zum schnellen ermitteln einer netzsynchronen referenzspannung fuer einen netzgefuehrten stromrichter nach einer netzstoerung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1428209A (en) * 1920-04-06 1922-09-05 Western Electric Co Mechanism for lapping diamond dies
CH483916A (de) * 1967-09-04 1970-01-15 Kunz Hans Grandiermaschine für Lagersteine
DE2347780B2 (de) * 1973-09-22 1980-05-29 Maschinenfabrik Gehring Gmbh & Co Kg, 7302 Ostfildern Honmaschine
FR2518003A1 (fr) * 1981-12-14 1983-06-17 Snecma Procede et dispositif de reconditionnement de trous de faible diametre

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 128 (M-220)[1273], 3. Juni 1983; & JP-A-58 045 860 (TOKYO SHIBAURA DENKI) 17.03.1983 *
SOVIET INVENTIONS ILLUSTRATED, Sektion Mechanik, Woche 8647, Abstrakt Nr. 310 112 P61, 4. Dezember 1986, Derwent Publications Ltd., London, GB; & SU-A-10 53424 (TRANS CAUCASUS META) 23.04.1986 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113427333A (zh) * 2021-06-08 2021-09-24 大连理工大学 一种深孔抛光装置及抛光方法

Also Published As

Publication number Publication date
ATE61958T1 (de) 1991-04-15
DE3701219C1 (de) 1988-09-01
JPS63180454A (ja) 1988-07-25
EP0276439B1 (fr) 1991-03-27
DE3768935D1 (de) 1991-05-02
ES2023176B3 (es) 1992-01-01
US4831783A (en) 1989-05-23

Similar Documents

Publication Publication Date Title
DE10234707A1 (de) Verfahren und Vorrichtung zum Schleifen eines rotationssymmetrischen Maschinenbauteils
DE10153813B4 (de) Poliervorrichtung zum Polieren von äußeren Umfangsabschnitten eines plattenförmigen Werkstücks
EP0276439B1 (fr) Procédé pour meuler intérieurement des torages longs de très petit diamètre dans des pièces et dispositif pour la mise en oeuvre de ce procédé
DE2311011B2 (de) Kopierschleifmaschine zum schleifen von werkstuecken aus holz
DE4227315C2 (de) Maschine zum Schleifen, Kurzhubhonen und Polieren der Außenoberfläche von Werkstücken
DE2538209A1 (de) Doppelspindel-flachschleifmaschine
DE19821982C2 (de) Profil-Bandschleifmaschine
DE965296C (de) Verfahren und Einrichtung zum Feinbearbeiten von Werkstueckoberflaechen
DE3136396C2 (fr)
DE2620477C2 (de) Gleitschleif- oder -poliermaschine
DE2851919A1 (de) Schleifverfahren und -vorrichtung
DE2857823C1 (de) Abrichtwerkzeug in Form eines Zahnrades fuer ein Honwerkzeugzahnrad
DE3147840A1 (de) Kopierfraes-, kopierschleif- bzw. kopier-bohrmaschine
DE1652119A1 (de) Verfahren und Maschine zum Feinstbearbeiten der Mantelflaechen von Tonnenrollen oder dergleichen Werkstuecken
DE10007444C2 (de) Verfahren und Vorrichtung zum Abrichten von Schleifscheiben, sowie Verwendung der Vorrichtung
DE841553C (de) Verfahren und Maschine zum Profilschleifen von Schnittstempeln
DE2857522A1 (de) Schleifverfahren und -vorrichtung
DE2645913C3 (de) Verfahren zum Abrunden der Außenkanten der Gewindegänge am Gewindeeinlauf und/oder Gewindeauslauf einer Gewinderolle
DE19800515A1 (de) Verfahren zur Aufarbeitung verformter Kegelinnenoberflächen der Werkzeugaufnahmen an Spindeln von Bearbeitungszentren
DE908224C (de) Vorrichtung zum maschinellen Feilen, Schleifen, Verformen und Polieren, insbesondere von Stahlstuecken
DE19615946A1 (de) Verfahren und Vorrichtung zum spanabhebenden Bearbeiten eines Werkstückes
DE2953805A1 (en) Device for abrasive conditioning billets with a form of body of revolution
DE905103C (de) Schleifmaschine, insbesondere fuer Rachenlehren
DE2210276A1 (de) Maschine zur gleichzeitigen bearbeitung mehrerer benachbarter flaechen eines werkstueckes beliebiger, insbesondere spitzwinkliger form
DD149333A1 (de) Mechanische abziehvorrichtung,insbesondere fuer die feinbearbeitung von oberflaechen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19890113

17Q First examination report despatched

Effective date: 19900725

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19910327

Ref country code: NL

Effective date: 19910327

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19910327

Ref country code: BE

Effective date: 19910327

REF Corresponds to:

Ref document number: 61958

Country of ref document: AT

Date of ref document: 19910415

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3768935

Country of ref document: DE

Date of ref document: 19910502

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19911231

Ref country code: AT

Effective date: 19911231

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2023176

Country of ref document: ES

Kind code of ref document: B3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920415

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930901

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19951025

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19951108

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19951214

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19951221

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19961211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19961212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19961231

Ref country code: CH

Effective date: 19961231

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19961211

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19970829

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051211