EP1039984A1 - Procede et dispositif pour polir des pieces avec superfinition simultanee - Google Patents

Procede et dispositif pour polir des pieces avec superfinition simultanee

Info

Publication number
EP1039984A1
EP1039984A1 EP98948966A EP98948966A EP1039984A1 EP 1039984 A1 EP1039984 A1 EP 1039984A1 EP 98948966 A EP98948966 A EP 98948966A EP 98948966 A EP98948966 A EP 98948966A EP 1039984 A1 EP1039984 A1 EP 1039984A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
grinding
unit
headstock
vorrichmng
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
EP98948966A
Other languages
German (de)
English (en)
Other versions
EP1039984B1 (fr
Inventor
Erwin Junker
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.)
Erwin Junker Maschinenfabrik GmbH
Original Assignee
Erwin Junker Maschinenfabrik GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7852571&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1039984(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Erwin Junker Maschinenfabrik GmbH filed Critical Erwin Junker Maschinenfabrik GmbH
Publication of EP1039984A1 publication Critical patent/EP1039984A1/fr
Application granted granted Critical
Publication of EP1039984B1 publication Critical patent/EP1039984B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

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
    • B24B33/00—Honing machines or devices; Accessories therefor
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • 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
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
    • 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
    • B24B5/01—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor for combined grinding of surfaces of revolution and of adjacent plane surfaces on work

Definitions

  • the invention relates to a method for grinding a workpiece with the features according to the preamble of claim 1 and a device for carrying out the method with the features according to the preamble of claim 4.
  • Finishing and finishing are usually two successive operations on two specially designed machine tools.
  • the disadvantages here are that on the one hand the number of different machine tools increases to a large extent the investment required to produce a particular component and that on the other hand the manufacturing costs for the component in question are also increased by longer throughput times with intermediate transport operations.
  • Another disadvantage is that the renewed clamping can occur in the machine tool realizing the fine machining, which proves to be disadvantageous for the required manufacturing tolerances.
  • Precision machining processes include honing in particular. Honing is a cutting process with bound grain to improve or change the shape, dimensional accuracy and surface quality of the workpiece, whereby the tool is constantly in contact with the surface of the workpiece. Honing is generally used after finishing, such as grinding, for finishing.
  • the so-called short stroke honing is also referred to as fine honing, finish machining or superfinishing, fine drawing grinding or oscillating grinding.
  • Machine tools for grinding and machine tools for example for superfinishing are known (see company brochure IMPCO Machine Tools, USA, 1994).
  • IMPCO Machine Tools USA, 1994.
  • the concept of two different machine tools for fine machining and fine machining also requires considerable development effort.
  • the invention is therefore based on the object of providing a method and a device for machining workpieces by means of which the geometry of the workpiece is machined true to size and shape, provided with the required surface quality and the production time and thus the unit cost of the workpiece considerably be reduced.
  • the workpiece is clamped for processing and the geometry of the workpiece ground to size and shape.
  • at least part of the surface of the workpiece is at least partially finely machined parallel to the grinding. Finishing is preferably carried out by finishing.
  • the grinding and the fine machining are carried out on cylindrical and / or conical surface sections of the workpiece.
  • the device used for carrying out the method according to the invention for grinding a workpiece is used in particular for grinding shaft parts, for example a gear.
  • the device has a workpiece headstock and tailstock for clamping the workpiece and a grinding unit.
  • the grinding unit is provided with at least one grinding spindle, which carries a grinding wheel for grinding the workpiece.
  • the workpiece headstock and the tailstock and / or the grinding unit are arranged so as to be able to achieve a grinding relative movement, which produces the desired workpiece geometry, between the grinding unit and the workpiece in a controlled manner.
  • the device is provided with a micromachining unit which can be moved in accordance with the geometry of the workpiece, at least part of the surface of the workpiece being microfinishing by means of the micromachining unit.
  • the grinding unit and the finest machining unit are movable in such a way that they are at least temporarily engaged with the workpiece at the same time.
  • the grinding unit and the ultra-fine machining unit are preferably arranged essentially opposite one another with respect to the longitudinal axis of the workpiece, so that the workpiece is clamped between the two machining units.
  • This has the advantage that there is free movement of both the grinding unit and the finest machining unit without mutual hindrance.
  • simultaneous grinding and ultra-fine machining of the workpiece can take place essentially over the entire length of the workpiece.
  • the grinding fineness ⁇ and Feinstbear mecanicngsech preferably with respect to the work piece ⁇ longitudinal axis substantially on a side of the workpiece to arrange. This is advantageous, for example, if only part of the surface of the workpiece must be finely machined and the length of the workpiece to be machined is long enough so that the fine machining unit and grinding unit do not interfere with one another during simultaneous engagement with the workpiece.
  • the grinding unit has a carrier on which two grinding spindles, each with at least one grinding wheel, can be pivoted and are mounted on a common infeed axis such that the grinding wheels can be brought into engagement with the workpiece one after the other.
  • a grinding unit is particularly useful when different surface contours of the workpiece have to be machined with the dimensions and shape using the grinding unit.
  • the fine machining unit is preferably designed as a fine grinding unit or as a finishing unit. Both the fine grinding unit and the finishing unit serve to achieve surface qualities of the workpiece or a part of the surface of this workpiece, which are in the range of the manufacturing processes usually referred to as fine machining.
  • FIG. 1 shows a schematic top view of the device according to the invention in accordance with a first exemplary embodiment:
  • 2 shows a schematic top view of the device according to the invention in accordance with a second exemplary embodiment of the invention: 2a shows the engagement of a first grinding spindle of the device according to FIG. 2 on the workpiece;
  • FIG. 2b shows the infeed of a second grinding spindle according to FIG. 2 as well as the finest machining unit to the workpiece
  • Fig. 3 is a schematic plan view of the device according to the invention according to a third embodiment.
  • a workpiece 3 is clamped between tips 20, 21 between a workpiece headstock 1 and a tailstock 2.
  • the longitudinal axis of the workpiece 3 is aligned with the longitudinal axes of the spindles of the workpiece headstock 1 and the tailstock 2.
  • the workpiece headstock 1 and the tailstock 2 are arranged on a movable grinding table, not shown, along a CNC axis ZI.
  • a grinding headstock 23 is provided on one side of the workpiece headstock / workpiece / tailstock arrangement.
  • the grinding headstock 23 has a grinding spindle 14 with a grinding wheel 15.
  • the grinding headstock 23 is arranged to be movable with respect to a movement axis XI in the sense of an infeed to the workpiece 3.
  • the longitudinal axis of the grinding spindle 14 can be arranged parallel or horizontally pivotable with respect to the axis of the workpiece.
  • the grinding headstock 23 can also be moved in the direction of the ZI axis. In such a case, the workpiece headstock 1 and tailstock 2 are firmly mounted on the machine stand.
  • a fine machining unit 25 is arranged in an essentially horizontal plane. By means of this fine machining unit 25, the surface of the workpiece 3 is reworked in accordance with the shape, tolerance and surface requirements, the fine machining being able to be carried out in parallel with the engagement of the grinding wheel 15 with the workpiece 3
  • This ultra-fine machining unit 25 is provided, for example, with a superfinishing unit.
  • the ultra-fine machining unit 25 can be moved along two CNC axes X2 or Z2 arranged at right angles to one another, so that it can carry out independent movements from the grinding headstock 23.
  • This exemplary embodiment, in which the grinding unit 14, 15, 23 and the fine machining unit 25 are arranged opposite the workpiece, has the advantage that essentially the entire surface of the workpiece 3 is ground with the grinding unit 14, 15, 23 and, at the same time, with the fine machining unit 25 can be finely machined
  • FIG. 2 shows the top view of the device according to the invention according to a second exemplary embodiment.
  • a device according to this exemplary embodiment is used above all when the outer contour of the workpiece 3 has to be machined with at least two grinding wheels.
  • a grinding wheel stick 24 is provided.
  • This grinding wheel stick 24 carries in a common horizontal plane two grinding brushes 12, 13 which are mounted at an angle to one another on the grinding wheel stick 24.
  • Each grinding spindle 12 or 13 carries a grinding wheel provided and shaped for a respective contour section of the workpiece Grinding wheel 24 can be pivoted about point B, so that, depending on the production sequence, the grinding wheel 5 mounted on the grinding spindle 12 or the grinding wheel 6 mounted on the grinding spindle 13 can be delivered to the factory stock 3 around the swivel axis e B executable Swiveling movement of the grinding headstock 24 is carried out hydraulically or CN ' C-controlled.
  • the microfinishing unit 25 is arranged analogously to the exemplary embodiment according to FIG. 1.
  • the controlled movements of the grinding unit 12, 13, 24, the precision machining unit 25 and the workpiece headstock / workpiece / tailstock arrangement are analogous to those described in connection with the exemplary embodiment according to FIG. 1.
  • the grinding spindle 12 of the grinding headstock 24 is in engagement with the workpiece 3 for grinding a conical shape 4 by means of the grinding wheel 5.
  • both grinding headstock are
  • finishing stone 9 to the workpiece 3.
  • a cylindrical pin 7 is ground on the workpiece 3 using the grinding wheel 6.
  • the conical surface 4 of the workpiece 3 is simultaneously subjected to a finishing process in order to increase the surface quality by means of the finishing stone 9.
  • the use of such a finishing stone is particularly advantageous when high load shares are to be achieved in relation to the surface quality of the workpiece surface.
  • Fig. 3 shows the top view of the device according to the invention according to a third embodiment.
  • both the grinding unit 14, 15 is provided as well as the Feinstbear mecanicngsech 25 on one side of the work t ückspindelstock / workpiece / tailstock assembly.
  • Both the grinding unit 14, 15 and the finest machining unit 25 can be moved CNC-controlled along respective axes XI, ZI or X2, Z2. This makes it possible to feed the grinding wheel 15 and the fine stone 9 at least partially on the surface of the workpiece at least partially in parallel with the grinding and for the fine machining of the workpiece 3.
  • the use of the device and the method according to the invention is advantageous, since the normal grinding and the fine machining can take place at least in part at the same time, thereby achieving considerable cost savings are.

Abstract

L'invention concerne un dispositif et un procédé pour le polissage d'une pièce, notamment d'une partie d'arbre. Selon ce procédé, la pièce est bloquée en vue d'être usinée par maillage et sa géométrie est ensuite rectifiée en fonction des cotes et des formes exactes. Au moins une partie de la surface de la pièce subit au moins partiellement une superfinition parallèlement à ce polissage. Le dispositif comporte une poupée porte-pièce et une contre-poupée permettant le blocage de la pièce, ainsi qu'une rectifieuse pourvue d'une meule pour le polissage de la pièce. La rectifieuse et la pièce sont disposées de manière mobile et asservie l'une par rapport à l'autre. Ce dispositif possède en outre une unité de superfinition qui se déplace selon la géométrie de la pièce de telle manière qu'au moins une partie de la surface de celle-ci subisse une superfinition.
EP98948966A 1997-12-18 1998-09-11 Procede et dispositif pour polir des pieces avec superfinition simultanee Revoked EP1039984B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19756610 1997-12-18
DE19756610A DE19756610A1 (de) 1997-12-18 1997-12-18 Verfahren und Vorrichtung zum Schleifen von Werkstücken mit zum Schleifen zeitparaller Feinstbearbeitung
PCT/EP1998/005808 WO1999032258A1 (fr) 1997-12-18 1998-09-11 Procede et dispositif pour polir des pieces avec superfinition simultanee

Publications (2)

Publication Number Publication Date
EP1039984A1 true EP1039984A1 (fr) 2000-10-04
EP1039984B1 EP1039984B1 (fr) 2003-03-05

Family

ID=7852571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98948966A Revoked EP1039984B1 (fr) 1997-12-18 1998-09-11 Procede et dispositif pour polir des pieces avec superfinition simultanee

Country Status (12)

Country Link
US (1) US6431954B1 (fr)
EP (1) EP1039984B1 (fr)
JP (1) JP2001526120A (fr)
KR (1) KR100553409B1 (fr)
CN (1) CN100366384C (fr)
BR (1) BR9814312A (fr)
CA (1) CA2315930C (fr)
CZ (1) CZ294498B6 (fr)
DE (2) DE19756610A1 (fr)
ES (1) ES2190608T3 (fr)
SK (1) SK284498B6 (fr)
WO (1) WO1999032258A1 (fr)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919893A1 (de) 1999-04-30 2000-11-09 Junker Erwin Maschf Gmbh Vor- und Fertigschleifen einer Kurbelwelle in einer Aufspannung
DE19921785B4 (de) 1999-05-11 2005-11-24 Erwin Junker Maschinenfabrik Gmbh Verfahren zum Schleifen von konvexen Laufflächen und Außendurchmessern an Wellen mit wenigstens einem scheibenförmigen Wellenabschnitt sowie Schleifmaschine zur Durchführung des Verfahrens
US6648727B1 (en) * 1999-09-14 2003-11-18 R. Warren Aldridge, Jr. CNC dual workhead chucker grinder
US6682403B1 (en) * 1999-10-27 2004-01-27 Unova Ip Corp Grinding machine with two grinding wheels
JP2003245855A (ja) * 2001-12-17 2003-09-02 Seiko Instruments Inc センタ支持研削方法、センタ支持研削盤およびそのセンタの芯出し方法
JP3990181B2 (ja) * 2002-04-15 2007-10-10 Ｎｔｎ株式会社 動圧型軸受装置の製造方法
DE10308292B4 (de) * 2003-02-26 2007-08-09 Erwin Junker Maschinenfabrik Gmbh Verfahren zum Rundschleifen bei der Herstellung von Werkzeugen aus Hartmetall und Rundschleifmaschine zum Schleifen von zylindrischen Ausgangskörpern bei der Herstellung von Werkzeugen aus Hartmetall
EP1475186B1 (fr) * 2003-05-07 2005-09-21 HTT Hauser Tripet Tschudin AG Méthode et dispositif pour abraser des pièces à symétrie de révolution
EP1506838B1 (fr) * 2003-08-14 2005-12-07 Supfina Grieshaber GmbH & Co. KG Outil pour l'usinage de paliers pour arbres
US7021990B2 (en) 2003-08-19 2006-04-04 Htt Hauser Tripet Tschudin Ag Method and apparatus for circular grinding
US7029366B2 (en) 2004-08-17 2006-04-18 Htt Hauser Tripet Tschudin Ag Method and apparatus for abrasive circular machining
KR100623971B1 (ko) * 2005-01-07 2006-09-20 주식회사 이스텍 스풀가공용 초정밀 가공장치
JP5058460B2 (ja) * 2005-07-11 2012-10-24 Ｎｔｎ株式会社 研磨装置付き旋盤及びこれを用いて行う軸状ワークの加工方法
JP4779611B2 (ja) * 2005-12-02 2011-09-28 三菱マテリアル株式会社 表面被覆切削インサートの製造方法
DE102008009124B4 (de) 2008-02-14 2011-04-28 Erwin Junker Maschinenfabrik Gmbh Verfahren zum Schleifen von stabförmigen Werkstücken und Schleifmaschine
DE102008010245B4 (de) * 2008-02-20 2011-02-10 Emag Holding Gmbh Verfahren zum Schleifen wellenförmiger Werkstücke
US8727831B2 (en) * 2008-06-17 2014-05-20 General Electric Company Method and system for machining a profile pattern in ceramic coating
CN101758450B (zh) * 2008-10-16 2012-10-31 北京金自天成液压技术有限责任公司 多功能珩磨头
IT1403602B1 (it) * 2010-12-22 2013-10-31 Tenova Spa Metodo per il posizionamento di cilindri operativi su di una macchina rettificatrice e macchina rettificatrice che attua tale metodo
KR101307958B1 (ko) * 2012-05-15 2013-09-12 니탄 밸브 가부시키가이샤 환봉재의 양단면 가공 방법
CN102886732A (zh) * 2012-09-18 2013-01-23 苏州市三峰印刷机械有限公司 一种磨轮装置
DE102015010942B4 (de) * 2015-08-18 2023-11-09 Emag Holding Gmbh Verfahren und Vorrichtung zur Schleif- und Feinstbearbeitung
US10384326B2 (en) 2015-12-21 2019-08-20 General Electric Company Surface treatment of turbomachinery
US9879536B2 (en) * 2015-12-21 2018-01-30 General Electric Company Surface treatment of turbomachinery
DE102016204273B4 (de) * 2016-03-15 2023-11-30 Erwin Junker Maschinenfabrik Gmbh Verfahren zur schleif-komplettbearbeitung von wellenförmigen werkstücken mit zylindrischen und profilierten abschnitten
CN107243786A (zh) * 2016-03-28 2017-10-13 沈阳海默数控机床有限公司 一种圆柱状工件外表面的磨削装置
CN107336132A (zh) * 2017-08-25 2017-11-10 四川峨胜水泥集团股份有限公司 风机主轴轴承位在线加工结构
CN107363687B (zh) * 2017-09-01 2023-05-05 贵阳天龙摩擦材料有限公司 平面及内外弧磨床及其磨削方法
CN108655881A (zh) * 2018-05-15 2018-10-16 芜湖杰诺科技有限公司 一种阀门用弹性夹紧端面圆打磨装置
CN109202558A (zh) * 2018-09-25 2019-01-15 天通银厦新材料有限公司 一种蓝宝石晶棒高效型外表面打磨装置
KR102146809B1 (ko) 2019-04-17 2020-08-21 에스엠에스비 주식회사 하이드로 작동유 공급장치
CN111230672B (zh) * 2020-01-13 2021-09-03 圣达电气有限公司 一种高性能阴极辊离线研磨机
CN111482862B (zh) * 2020-04-30 2021-11-19 湖北隐冠轴业有限公司 一种批量打磨装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333041A1 (de) * 1973-06-29 1975-01-23 Karstens Georg Messgeraete Universalschleifspindelstock
US3881887A (en) * 1973-12-19 1975-05-06 Mcmaster Harold Apparatus and method for grinding an elongated workpiece
DE2714222C2 (de) * 1977-03-30 1984-04-19 Supfina Maschinenfabrik Hentzen Kg, 5630 Remscheid Verfahren und Maschine zum Schleifen der Anlaufbunde der Innenringe von Kegelrollenlagern
US4930265A (en) * 1984-08-28 1990-06-05 Schaudt Maschinenbau Gmbh Thread grinding method and machine
DE3724698A1 (de) * 1987-07-25 1989-02-02 Schaudt Maschinenbau Gmbh Schleifkopf
FR2671504B1 (fr) * 1991-01-11 1993-04-30 Pineau Eric Machine d'usinage par abrasif de pieces cylindriques.
DE4101150A1 (de) * 1991-01-14 1992-07-16 Zittau Tech Hochschule Verfahren und vorrichtung zum schleifen von oberflaechen, insbesondere fuer den industrierobotereinsatz
DE4227315C2 (de) * 1991-08-19 1995-03-09 Grieshaber Masch Maschine zum Schleifen, Kurzhubhonen und Polieren der Außenoberfläche von Werkstücken
JP3158760B2 (ja) * 1993-02-26 2001-04-23 豊田工機株式会社 研削方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9932258A1 *

Also Published As

Publication number Publication date
BR9814312A (pt) 2001-11-27
SK284498B6 (sk) 2005-05-05
US6431954B1 (en) 2002-08-13
DE19756610A1 (de) 1999-07-01
CZ20002125A3 (en) 2001-05-16
WO1999032258A1 (fr) 1999-07-01
SK9052000A3 (en) 2001-10-08
KR100553409B1 (ko) 2006-02-20
CN1284022A (zh) 2001-02-14
EP1039984B1 (fr) 2003-03-05
ES2190608T3 (es) 2003-08-01
CZ294498B6 (cs) 2005-01-12
CN100366384C (zh) 2008-02-06
CA2315930A1 (fr) 1999-07-01
KR20010033336A (ko) 2001-04-25
DE59807412D1 (de) 2003-04-10
JP2001526120A (ja) 2001-12-18
CA2315930C (fr) 2006-10-31

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