EP1807243B1 - Procede d'usinage de pieces de rotation - Google Patents

Procede d'usinage de pieces de rotation Download PDF

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Publication number
EP1807243B1
EP1807243B1 EP05779355A EP05779355A EP1807243B1 EP 1807243 B1 EP1807243 B1 EP 1807243B1 EP 05779355 A EP05779355 A EP 05779355A EP 05779355 A EP05779355 A EP 05779355A EP 1807243 B1 EP1807243 B1 EP 1807243B1
Authority
EP
European Patent Office
Prior art keywords
grinding
workpiece
crankshaft
bore
machining
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.)
Active
Application number
EP05779355A
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German (de)
English (en)
Other versions
EP1807243A1 (fr
Inventor
Peter Reim
Werner Huettig
August Baumann
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.)
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Publication date
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Publication of EP1807243A1 publication Critical patent/EP1807243A1/fr
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Publication of EP1807243B1 publication Critical patent/EP1807243B1/fr
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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
    • B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • 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
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49286—Crankshaft making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/303752—Process
    • Y10T409/303808—Process including infeeding

Definitions

  • the present invention relates to a method for processing rotary parts comprising at least one working step in which a grinding of at least one surface of the workpiece clamped in a device takes place.
  • a method for processing rotary parts comprising at least one working step in which a grinding of at least one surface of the workpiece clamped in a device takes place.
  • Such a method is for example from the document DE-A1-43 29 610 known.
  • the object of the present invention is to simplify a method for processing rotary parts of the aforementioned type, to reduce manufacturing costs while achieving a high process reliability to obtain workpieces of high quality standard.
  • the solution to this problem provides a method according to the invention for the machining of rotary parts of the aforementioned type with the features of the main claim.
  • at least one front-side bore is introduced into the workpiece clamped for the grinding operation in the same clamping device by means of a drilling tool.
  • a new clamping of the workpiece in a dedicated special machine with its own work sequence is thus no longer necessary.
  • the drilling for example, the introduction of a front-side fitting bore in a rotary part, for example in a crankshaft flange takes place in the same clamping device, in which also the grinding process takes place. This can be done in a suitable clamping device.
  • the workpiece can be clamped at least in each case at both ends in a clamping device and, for the drilling process, release the clamping device at at least one end and arrange there a chuck for a drilling tool, which then performs the desired frontal bore.
  • at least one fine bore or precision bore is introduced into the workpiece on the front side.
  • a suitable guide element such as a guide bezel.
  • the grinding operation performed on the tool in the chuck preferably comprises at least one CBN grinding by means of a grinding wheel.
  • crankshafts are usually produced independently of the power class with a high production cost.
  • the ball bearing almost all crankshafts are rotated and rolled by a separate machine or sequence.
  • this sequence of operations of turning and deep rolling the ball bearing can be omitted and replaced by grinding the ball bearing.
  • This grinding of the pivot bearing can be done for example in the already made operation of the flange-pin grinding. In this way, the manufacturing costs in the production of such rotating parts, in particular crankshafts, can be significantly reduced.
  • crankshafts the state of the art usually involves finish machining, regardless of the requirements of the crankshaft.
  • main, stroke bearings, flange and pins of the crankshaft are polished.
  • This polishing operation can be dispensed with according to an embodiment of the invention and replaced by a suitable grinding operation, in particular by CBN grinding.
  • a suitable grinding operation in particular by CBN grinding.
  • roughnesses of, for example, on the order of about 2 ⁇ m can be achieved.
  • R z even more subtleties can be achieved for R z , for example, when problems occur in the area of an oil passage, a groove in the bearing or the like. If the finish machining of the rotary component, in particular in the case of crankshafts, is eliminated, this likewise leads to a further considerable reduction in the production costs.
  • FIG. 1 The diagram shows schematically greatly simplified a machine for machining of rotating parts, in particular crankshafts.
  • This machine comprises a first drive unit 17, and a second drive unit 16, so that it is possible to machine the rotary part 10 from both ends.
  • a clamping device comprising a first chuck 11 for clamping the rotary member 10 at its one end and a second chuck 12 for clamping the rotary member at its other end, wherein the clamping device is designed so that by means of the drive units 16, 17 Rotation part 10 can be rotated about its axis 18.
  • the machine according to the invention has a guide bezel 14, which provides for a guide or support on the circumference of the workpiece.
  • Fig. 1 shows the clamped for a grinding operation crankshaft 10, which is clamped at both ends via the chucks 11, 12.
  • a grinding wheel 15 can be used for the grinding process, which can be driven rotatably about an axis 19 and which can carry out a feed in the direction of the workpiece 10 by means of a suitable device 20 (see double arrow in FIG Fig. 1 ).
  • FIG. 2 shows that the chuck 11 has been withdrawn, wherein the clamping elements 11 a were solved, so that at the left end in the drawing of the crankshaft 10, the original clamping is no longer given. You can see it too by comparison with Fig. 1 in that, due to the retraction of the chuck 11, there is a certain distance between the chuck 11 and the front face 21 of the crankshaft. In the specially trained chuck 11, a tool, such as a fine boring tool 13 can now be clamped, which introduces a front-side precision bore in the flange 22 of the crankshaft 10.
  • the guide bezel 14 now serves in this end region for supporting the crankshaft 10.
  • the clamping in the second chuck 12 remains as in FIG Fig. 1 also shown when editing with the fine boring tool 13.
  • the drilling can be done simply by the feed of the fine boring tool 13.
  • the fine boring tool is withdrawn, it is removed from the chuck 11 and if necessary, the crankshaft 10 can be clamped again via the clamping elements 11a for further machining operations, for example Grinding the surface or the like.
  • the advantage of the method according to the invention is therefore that operations on the surface such as grinding and drilling operations in the frontal area in the same machine can be done in principle in the same clamping.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Turning (AREA)
  • Forging (AREA)
  • Supercharger (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Gripping On Spindles (AREA)

Claims (12)

  1. Procédé pour l'usinage de pièces de rotation, comprenant au moins une étape de travail, dans laquelle a lieu un meulage d'au moins une surface de la pièce (10) serrée aux deux extrémités dans un mandrin de serrage (11, 12) respectif et comprenant au moins une autre étape de travail, dans laquelle le serrage au niveau d'une région d'extrémité de la pièce (10) est desserré et l'on réalise un perçage à cet endroit au moyen d'un outil de perçage (13), tandis que le serrage à l'autre région d'extrémité de la pièce est maintenu, caractérisé en ce que le perçage du côté frontal est réalisé par un outil de perçage (13) disposé dans le mandrin de serrage desserré (11).
  2. Procédé selon la revendication 1, caractérisé en ce que celui-ci comprend au moins une opération de meulage par meulage CBN au moyen d'un disque abrasif (15).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on pratique du côté frontal dans la pièce au moins un perçage fin ou un perçage de précision.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'on prévoit au moins après le desserrage d'un dispositif de serrage, un guidage supplémentaire de la pièce au niveau de sa circonférence par un élément de guidage (14), de préférence une lunette de guidage.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la pièce de rotation usinée est un vilebrequin.
  6. Procédé selon la revendication 5, caractérisé en ce que l'on pratique dans l'étape de perçage fin un alésage fin du côté frontal dans la bride du vilebrequin (22).
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'usinage de la surface de la pièce s'effectue par meulage, de préférence meulage CBN en laissant un certain degré de rugosité sans usinage de finition ultérieur.
  8. Procédé selon la revendication 7, caractérisé en ce que le meulage final de la pièce a lieu dans le dispositif et un polissage subséquent de la pièce n'est pas prévu.
  9. Procédé selon l'une quelconque des revendications 5 à 8, caractérisé en ce que l'usinage du palier ajusté du vilebrequin s'effectue par meulage dans le même dispositif.
  10. Procédé selon la revendication 9, caractérisé en ce que le meulage du palier ajusté s'effectue dans la même passe de travail que le meulage de brides (22) et/ou de tourillons du vilebrequin.
  11. Procédé selon la revendication 9 ou 10, caractérisé en ce que le meulage du palier ajusté s'effectue sans galetage préalable.
  12. Procédé selon l'une quelconque des revendications 1 à 11, caractérisé en ce que l'usinage de toutes les surfaces pertinentes d'un vilebrequin s'effectue dans le même dispositif, de préférence dans un serrage.
EP05779355A 2004-09-08 2005-09-01 Procede d'usinage de pieces de rotation Active EP1807243B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004043404A DE102004043404A1 (de) 2004-09-08 2004-09-08 Verfahren zur Bearbeitung von Rotationsteilen
PCT/EP2005/009433 WO2006027161A1 (fr) 2004-09-08 2005-09-01 Procede d'usinage de pieces de rotation

Publications (2)

Publication Number Publication Date
EP1807243A1 EP1807243A1 (fr) 2007-07-18
EP1807243B1 true EP1807243B1 (fr) 2008-04-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05779355A Active EP1807243B1 (fr) 2004-09-08 2005-09-01 Procede d'usinage de pieces de rotation

Country Status (10)

Country Link
US (1) US7507147B2 (fr)
EP (1) EP1807243B1 (fr)
JP (1) JP5022899B2 (fr)
KR (1) KR101218376B1 (fr)
CN (1) CN101022919A (fr)
AT (1) ATE391580T1 (fr)
DE (2) DE102004043404A1 (fr)
ES (1) ES2304712T3 (fr)
RU (1) RU2359802C2 (fr)
WO (1) WO2006027161A1 (fr)

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DE102011089654B4 (de) * 2011-12-22 2015-01-29 Erwin Junker Maschinenfabrik Gmbh Verfahren zur drehbearbeitung von planschultern an den wangen einer kurbelwelle, verwendung des verfahrens zur komplettbearbeitung von kurbelwellenrohlingen sowie kurbelwellen-drehmaschine zur drehbearbeitung der planschultern
CN103624642A (zh) * 2012-12-03 2014-03-12 溧阳市瑞威中速柴油机配件有限公司 浮动磨削曲轴主轴颈的加工方法
CN103464803A (zh) * 2013-08-24 2013-12-25 中国北车集团大同电力机车有限责任公司 工件端面螺纹孔的加工方法及设备
US9873181B2 (en) * 2013-11-14 2018-01-23 Caterpillar Inc. Tool, system and process for finishing a cylindrical member
CN103659502A (zh) * 2013-12-04 2014-03-26 天水星火机床有限责任公司 双砂轮车轴磨削装置
DE102014204807B4 (de) * 2014-03-14 2016-12-15 Erwin Junker Grinding Technology A.S. Verfahren und Vorrichtung zum Schleifen von Großkurbelwellen
DE102016204273B4 (de) * 2016-03-15 2023-11-30 Erwin Junker Maschinenfabrik Gmbh Verfahren zur schleif-komplettbearbeitung von wellenförmigen werkstücken mit zylindrischen und profilierten abschnitten
DE102016215913A1 (de) 2016-08-24 2018-03-01 Volkswagen Aktiengesellschaft Spannvorrichtung
CN106312125A (zh) * 2016-08-29 2017-01-11 巢湖市南特精密制造有限公司 一种曲轴的中心孔精准定位加工装置
CN106270636A (zh) * 2016-08-29 2017-01-04 巢湖市南特精密制造有限公司 一种曲轴中心孔的高效钻孔机床
CN106424947B (zh) * 2016-10-12 2018-04-06 广西玉柴机器股份有限公司 一种简易去毛刺平台
CN107414636A (zh) * 2017-09-29 2017-12-01 侯马市东鑫机械铸造有限公司 曲轴小端面磨削设备
CN108637403A (zh) * 2018-05-15 2018-10-12 杭州世宝汽车方向机有限公司 一种扇齿周向定位装置及包含该装置的夹具
CN109648116A (zh) * 2018-12-14 2019-04-19 江西长江化工有限责任公司 一种包装箱法兰筋定位钻孔器
CN110712302B (zh) * 2019-09-11 2021-03-30 重庆城市管理职业学院 园林装饰石材打磨装置
CN115041967B (zh) * 2022-07-01 2023-09-19 安庆中船动力配套有限公司 一种曲轴安装孔高精度镗铣装置
CN116214189B (zh) * 2023-02-28 2023-11-28 东莞市勇飞五金制品有限公司 一种电子烟发热丝座高效研磨设备及工艺

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Also Published As

Publication number Publication date
US20080102736A1 (en) 2008-05-01
WO2006027161A1 (fr) 2006-03-16
DE102004043404A1 (de) 2006-03-09
JP5022899B2 (ja) 2012-09-12
EP1807243A1 (fr) 2007-07-18
ES2304712T3 (es) 2008-10-16
KR20070052298A (ko) 2007-05-21
ATE391580T1 (de) 2008-04-15
RU2359802C2 (ru) 2009-06-27
KR101218376B1 (ko) 2013-01-02
DE502005003683D1 (de) 2008-05-21
JP2008512255A (ja) 2008-04-24
RU2007112910A (ru) 2008-10-20
CN101022919A (zh) 2007-08-22
US7507147B2 (en) 2009-03-24

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