EP1177067A1 - Procede de meulage de surfaces de roulement convexes et de diametres exterieurs, sur des pieces a usiner ondulees, dans un serrage, ainsi que meuleuse destinee a la mise en oeuvre de ce procede - Google Patents

Procede de meulage de surfaces de roulement convexes et de diametres exterieurs, sur des pieces a usiner ondulees, dans un serrage, ainsi que meuleuse destinee a la mise en oeuvre de ce procede

Info

Publication number
EP1177067A1
EP1177067A1 EP00922668A EP00922668A EP1177067A1 EP 1177067 A1 EP1177067 A1 EP 1177067A1 EP 00922668 A EP00922668 A EP 00922668A EP 00922668 A EP00922668 A EP 00922668A EP 1177067 A1 EP1177067 A1 EP 1177067A1
Authority
EP
European Patent Office
Prior art keywords
grinding
workpiece
grinding wheel
headstock
shaped
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
EP00922668A
Other languages
German (de)
English (en)
Other versions
EP1177067B1 (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
Application filed by Erwin Junker Maschinenfabrik GmbH filed Critical Erwin Junker Maschinenfabrik GmbH
Publication of EP1177067A1 publication Critical patent/EP1177067A1/fr
Application granted granted Critical
Publication of EP1177067B1 publication Critical patent/EP1177067B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B24B5/16—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 for grinding peculiarly surfaces, e.g. bulged

Definitions

  • the invention relates to a method for grinding convex treads and outer diameters on shaft-shaped workpieces in one setting and a grinding machine for performing the method.
  • the invention is based on the object to provide a method for grinding convex treads and outer diameters on shaft-shaped workpieces in one setting.
  • tapered, semi-ellipsoidal or paraboloidal treads should be ground.
  • a special grinding machine is to be used, with which the Disadvantages inherent in the prior art are eliminated.
  • the shaft parts to be machined are to be ground in one clamping with two CBN grinding wheels to the finished product.
  • the method according to the invention is also intended to enable individual grinding operations on comparable workpieces with the aid of the special grinding machine.
  • the method for grinding shaft parts with convex, in particular tapered, semi-ellipsoidal or paraboloidal treads and the desired, exact outer diameters on shaft-shaped workpieces is carried out in one setting on a swiveling grinding headstock.
  • the grinding headstock comprises two arms which form an angle ⁇ , which is in particular 60 °, and grinding spindles are provided at their free ends.
  • On one grinding spindle a grinding wheel with at least one concave side surface for producing a contour-conforming convex running surface is clamped on the shaft part to be machined and on the other grinding spindle a grinding wheel for producing exact outer diameters is clamped on the shaft parts to be machined.
  • the grinding of a wave-shaped workpiece is carried out in such a way that the workpiece, which has a plane-side section with a large diameter, is clamped between the tips of a workpiece headstock and a tailstock and is supported at the bearing points of the workpiece with steadies.
  • a relatively large grinding wheel which has at least one concave, in particular conical, semi-ellipsoidal or paraboloid-shaped cross-section, contour-conforming side surface for creating the running surface of the wave-shaped workpiece section
  • the opposite side surface of the grinding wheel is also designed accordingly if convex treads with a large diameter are to be produced on both sides of the wave-shaped workpiece section
  • the grinding wheel which is concave in cross section, is brought out of the area of engagement with the wave-shaped workpiece section by pivoting the grinding headstock.At the same time, the second grinding wheel is moved against the outer circumference of the wave-shaped workpiece section by moving the grinding headstock in the X-axis hired to grind an exact diameter
  • this wavy workpiece section with the large diameter is to be convexly grinded on both sides, in particular in the shape of a cone, semi-ellipsoid or paraboloid, a grinding wheel with two concave, in particular cone, semi-ellipsoidal or paraboloid-shaped side surfaces is to be used from the outset, which conforms to the contour of the running surfaces to be created wave-shaped workpiece section with the large diameter are used.
  • the grinding wheel is first on the X-axis from the area of the wave-shaped workpiece section with the large diameter moved out and pivoted against the previous swivel direction of the grinding headstock.
  • the workpiece is moved by a feed movement on the Z axis in the direction of the workpiece center axis to feed the grinding wheel to create the second convex, in particular cone, semi-ellipsoidal or paraboloidal tread of the to enable wavy workpiece section with respect to the X-axis.
  • the second concave, in particular conical, semi-ellipsoidal or paraboloidal side surface of the first grinding wheel is brought into engagement with the other side surface of the wave-shaped workpiece section with the large diameter in order to create the second convex tread with the second concave side surface of the grinding wheel .
  • the grinding headstock After grinding the one convex, in particular conical, semi-ellipsoidal or paraboloidal tread and / or grinding the second opposite convex, in particular conical, semi-ellipsoidal or paraboloidal tread of the wavy workpiece section with the large diameter, the grinding headstock becomes on the X-axis from the
  • Arm of the workpiece headstock is clamped and forms an angle ⁇ , which is preferably 60 °, with respect to the arm with the spindle for the first grinding wheel, is fed perpendicular to the longitudinal axis of the wavy workpiece to the desired outer diameter on the corresponding sections of the wavy workpiece to create.
  • a special grinding machine is suitable for carrying out the method, on the machine bed of which a workpiece headstock and a tailstock aligned in the longitudinal axis are arranged, which realize the feed movement according to the Z axis. Also in this area are the Machine bed adjustable bezels provided against the bearing points of the workpiece.
  • a two-armed grinding headstock is provided behind the arrangement of the workpiece headstock and tailstock, with each arm being equipped at the end with a grinding spindle for receiving grinding wheels.
  • the verticals on the longitudinal axes of the two grinding spindles intersect in one plane at an angle ⁇ of preferably 60 ° in the pivot axis of the two-armed common grinding headstock with the two grinding spindles arranged at the end and carrying the grinding wheel.
  • the grinding headstock can be pivoted in one plane, for example horizontally, and can be advanced vertically along the X axis to the Z axis.
  • This grinding machine allows the setting of optimal use positions for the grinding wheels in relation to the workpiece to be machined.
  • the arrangement of the two-armed grinding headstock with the grinding spindles for the first and second grinding wheels attached at the ends has the advantage that the two grinding spindles are arranged on a common guide for carrying out the infeed movement in accordance with the X axis.
  • This arrangement ensures very high rigidity values, including the grinding slide guide.
  • the high rigidity of the grinding headstock and the guide system on the guide carriage result in high precision values for the end product produced by grinding in one clamping.
  • the dimensional inaccuracies creeping in with multiple clamping operations add up until the end product is produced.
  • the high stiffness values of the guide system therefore decisively improve the process reliability of the method and also reduce wear on the grinding wheels.
  • FIG. 1 shows the structural design of the grinding machine used to carry out the method, which is arranged on a machine bed and which, in alignment, has a workpiece headstock and a tailstock with a corrugated workpiece clamped in between, which has a section with the larger diameter, and a two-armed grinding headstock arranged behind it each with a grinding spindle mounted at the ends in the arms.
  • Fig. 2 shows the clamping of a pre-ground, wavy workpiece between the tips of the workpiece headstock and the
  • Tailstock with the Z-axis characterizing the feed movement the workpiece having a disk-shaped section with a large diameter.
  • FIG. 3 shows the first method step for grinding a first convex, in particular conical, semi-ellipsoidal or paraboloidal tread on the disk-shaped partial section of the wave-shaped workpiece with the larger diameter by means of a concave, in particular conical, semi-ellipsoidal or paraboloidal contour-conforming side surface of a first grinding wheel .
  • Fig. 4 shows the second method step for grinding a convex, in particular conical, semi-ellipsoidal or paraboloidal tread on both sides on the disk-shaped section of the wavy workpiece with the large diameter by means of a second concave, in particular conical, semi-ellipsoidal or paraboloidal, contour-conforming side surface of the first grinding wheel.
  • 5 shows the third method step for producing different outer diameters on a wave-shaped workpiece.
  • a grinding table 2 is arranged schematically in the front area on the machine bed 1, on which the feed movement is carried out along the double arrow in accordance with the Z axis. The CNC-controlled drive required for this is not shown.
  • a motor-driven workpiece headstock 3 and a tailstock 4 are arranged in alignment on a common longitudinal axis 5.
  • the wavy workpiece 10 to be finished which has a section with a large diameter D, is clamped between the workpiece headstock 3 and the tailstock 4.
  • the workpiece headstock 3 has a rotor-driven workpiece spindle 6, which has a workpiece holder 7 designed as a tip in the front region.
  • the opposite tailstock 4, which is arranged in alignment on the grinding table 2, has a hydraulically axially displaceable tailstock quill 8.
  • This tailstock quill 8 has a tailstock tip 9 at the workpiece-side end.
  • the longitudinal axis of the workpiece spindle 6 of the workpiece headstock 3, the workpiece 10 and the tailstock quill 8 of the tailstock 4 thus form a common, aligned longitudinal axis 5.
  • a grinding headstock 20, which is mounted on a guide carriage 21, is arranged in the rear region of the machine bed 1.
  • the guide carriage 21 is equipped with an infeed drive 22 which realizes the infeed movement in the X-axis relative to the workpiece 10.
  • the guide carriage 21 is mounted hydrostatically on guides 23 and aligned at right angles to the workpiece center axis 5.
  • the guide carriage 21 is consequently arranged to be displaceable in accordance with the CNC axis.
  • the Grinding headstock 20 comprises two arms 24 and 25, each of which has grinding spindles 28 and 29 equipped with HF drives 26 and 27 at the ends.
  • the grinding headstock 20 can be pivoted so far by the angle ⁇ corresponding to the CNC axis that, depending on the preselection, one or the other longitudinal axis 31 or 32 of the grinding spindle 28 or 29 assumes a position parallel to the longitudinal axis 5 of the workpiece 10.
  • Each grinding spindle 28, 29 is equipped with a grinding wheel 33, 34.
  • FIG. 2 shows the clamping of a wavy workpiece 10 which has been pre-ground with an oversize a and which has a section 40 with a large diameter.
  • the measurement is, for example, between 0.1 and 0.2 mm.
  • the workpiece 10 is clamped between the tip of the workpiece holder 7 of the workpiece spindle 6 of the workpiece headstock 3 and the tailstock tip 9 of the tailstock quill 8 of the tailstock 4.
  • the positioning of the grinding wheels 33 and 34 and the grinding spindles 28 and 29, not shown in FIG. 2 can correspond to the position according to FIG. 1.
  • FIG. 3 shows the positioning of the first grinding wheel 33 and the wave-shaped workpiece 10 in a first method step, in which the longitudinal axis 32 of the grinding spindle 29 is inclined by an angle ⁇ with respect to the horizontal.
  • This angle ⁇ corresponds to the convex, in particular conical, semi-ellipsoidal or paraboloid-shaped tread 36 of the workpiece 10 that can be achieved with the first grinding wheel 33, which has a concave, in particular conical, semi-ellipsoidal or paraboloid-shaped side surface 35, which conforms to the contour of the concave trained side surface 35.
  • the infeed of the first grinding wheel 22 follows the X axis while the feed movement over the Z axis is carried out with the aid of the guide slide 21.
  • the first grinding wheel 33 which has two concave, in particular conical, semi-ellipsoidal or paraboloid-shaped side surfaces
  • the grinding wheel 33 having the side surface 35 'for generating the second convex, in particular conical, semi-ellipsoidal, by corresponding infeed movement along the X axis and feed movement along the Z axis. or paraboloid
  • Tread 37 is used on the section with the large diameter D.
  • the repeated clamping of wave-shaped workpieces is eliminated with the special grinding machine, which is equipped with a pivotable grinding headstock 20, in order to produce exact convex, conical, semi-ellipsoidal or paraboloidal treads and exact outer diameters.
  • finished parts are produced using the method according to the invention and the special grinding machine A. Made with high dimensional and shape accuracy, because an addition of clamping-related inaccuracies is excluded.

Landscapes

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

Abstract

L'invention concerne un procédé de meulage permettant de meuler des surfaces de roulement convexes et d'obtenir des diamètres extérieurs précis sur des pièces à usiner ondulées (10). Dans un serrage, on réalise, durant une première opération de meulage, le meulage d'une première surface de roulement convexe (36) sur une partie en forme de disque d'une première pièce à usiner ondulée (10), au moyen d'une première meule (33) présentant au moins une surface latérale concave (35). Durant une seconde opération de meulage, on réalise, au moyen d'une seconde meule (34), un meulage permettant d'obtenir le diamètre extérieur souhaité de ladite partie en forme de disque ainsi que d'autres parties de la pièce à usiner ondulée (10).
EP00922668A 1999-05-11 2000-04-27 Procede de meulage de surfaces de roulement convexes et de diametres exterieurs, sur des pieces a usiner ondulees, dans un serrage, ainsi que meuleuse destinee a la mise en oeuvre de ce procede Expired - Lifetime EP1177067B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19921785 1999-05-11
DE19921785A DE19921785B4 (de) 1999-05-11 1999-05-11 Verfahren zum Schleifen von konvexen Laufflächen und Außendurchmessern an Wellen mit wenigstens einem scheibenförmigen Wellenabschnitt sowie Schleifmaschine zur Durchführung des Verfahrens
PCT/EP2000/003837 WO2000067947A1 (fr) 1999-05-11 2000-04-27 Procede de meulage de surfaces de roulement convexes et de diametres exterieurs, sur des pieces a usiner ondulees, dans un serrage, ainsi que meuleuse destinee a la mise en oeuvre de ce procede

Publications (2)

Publication Number Publication Date
EP1177067A1 true EP1177067A1 (fr) 2002-02-06
EP1177067B1 EP1177067B1 (fr) 2002-12-18

Family

ID=7907763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00922668A Expired - Lifetime EP1177067B1 (fr) 1999-05-11 2000-04-27 Procede de meulage de surfaces de roulement convexes et de diametres exterieurs, sur des pieces a usiner ondulees, dans un serrage, ainsi que meuleuse destinee a la mise en oeuvre de ce procede

Country Status (11)

Country Link
US (1) US6685536B1 (fr)
EP (1) EP1177067B1 (fr)
JP (1) JP4473457B2 (fr)
AU (1) AU4298400A (fr)
BR (1) BR0010489A (fr)
CA (1) CA2372659C (fr)
CZ (1) CZ294212B6 (fr)
DE (2) DE19921785B4 (fr)
ES (1) ES2185589T3 (fr)
RU (1) RU2247641C2 (fr)
WO (1) WO2000067947A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107708925A (zh) * 2016-03-15 2018-02-16 埃尔温容克尔机械制造有限公司 具有圆柱区段和异型区段的轴状工件的综合磨削加工方法
CN112139917A (zh) * 2020-09-21 2020-12-29 重庆工商大学 一种具有多角度移动的汽车车顶凹槽打磨加工生产设备
CN112873049A (zh) * 2021-04-29 2021-06-01 四川力源精工科技有限公司 一种磨削机构及复合磨床
CN112975695A (zh) * 2021-05-12 2021-06-18 四川力源精工科技有限公司 多功能数控复合磨床

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GB2365806B (en) * 2000-06-21 2003-11-19 Unova Uk Ltd Grinding machine
DE10234707B4 (de) 2002-07-30 2007-08-02 Erwin Junker Maschinenfabrik Gmbh Verfahren und Vorrichtung zum Schleifen eines rotationssymmetrischen Maschinenbauteils
DE10235808B4 (de) * 2002-08-05 2009-08-20 Erwin Junker Maschinenfabrik Gmbh Verfahren und Vorrichtung zum Schleifen eines mit einer Längsbohrung versehenen rotationssymmetrischen Maschinenbauteils
DE102004057991B4 (de) 2004-12-01 2018-03-29 Tni Medical Ag Gehäuseschale, Laufrad sowie Seitenkanalverdichter
DE502008001096D1 (de) * 2008-11-05 2010-09-16 Supfina Grieshaber Gmbh & Co Finishmaschine mit einer Steinwendeeinheit
JP5428740B2 (ja) * 2009-10-19 2014-02-26 株式会社ジェイテクト 複合研削盤
JP5505099B2 (ja) * 2010-06-04 2014-05-28 株式会社ジェイテクト 複合研削盤による研削方法
BE1019774A3 (nl) 2011-01-24 2012-12-04 Atlas Copco Airpower Nv Werkwijze en slijpmachine voor het vervaardigen van een rotor voor een compressor.
CN102513886A (zh) * 2011-12-30 2012-06-27 中国科学院长春光学精密机械与物理研究所 一种双圆锥形金刚石光栅刻划刀具刃磨方法
CN103286664B (zh) * 2012-02-29 2017-05-31 上海运安制版有限公司 一种外圆和端面自动抛光机
US9498865B2 (en) * 2013-12-27 2016-11-22 United Technologies Corporation System and methods for rough grinding
DE102014203402B3 (de) * 2014-02-25 2015-07-09 Erwin Junker Maschinenfabrik Gmbh Schleifmaschine und verfahren zum schleifen von axialen bohrungen und beidseitig zu bearbeitende plane aussenflächen aufweisenden werkstücken
CN104290014B (zh) * 2014-09-30 2017-02-01 广东省自动化研究所 多角度自动抛光系统及其抛光方法
WO2016162979A1 (fr) * 2015-04-08 2016-10-13 三菱電機株式会社 Procédé de meulage et appareil de meulage
CN107639475A (zh) * 2016-07-22 2018-01-30 上海大松瓦楞辊有限公司 一种外圆磨实现自动磨抛物线中高曲线的装置
UA124899C2 (uk) * 2019-10-11 2021-12-08 Олексій Борисович Черенов Безцентровий круглошліфувальний верстат
CN112123026A (zh) * 2020-09-18 2020-12-25 三峡大学 一种轴体抛光系统及抛光方法
CN113977430B (zh) * 2021-11-30 2023-04-25 中国航发中传机械有限公司 一种双磨料砂轮的磨削加工方法

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Publication number Priority date Publication date Assignee Title
CN107708925A (zh) * 2016-03-15 2018-02-16 埃尔温容克尔机械制造有限公司 具有圆柱区段和异型区段的轴状工件的综合磨削加工方法
CN112139917A (zh) * 2020-09-21 2020-12-29 重庆工商大学 一种具有多角度移动的汽车车顶凹槽打磨加工生产设备
CN112873049A (zh) * 2021-04-29 2021-06-01 四川力源精工科技有限公司 一种磨削机构及复合磨床
CN112975695A (zh) * 2021-05-12 2021-06-18 四川力源精工科技有限公司 多功能数控复合磨床

Also Published As

Publication number Publication date
JP4473457B2 (ja) 2010-06-02
DE50000975D1 (de) 2003-01-30
RU2247641C2 (ru) 2005-03-10
BR0010489A (pt) 2002-02-13
US6685536B1 (en) 2004-02-03
CA2372659C (fr) 2008-03-18
CA2372659A1 (fr) 2000-11-16
DE19921785B4 (de) 2005-11-24
AU4298400A (en) 2000-11-21
CZ20013992A3 (cs) 2002-08-14
JP2002543991A (ja) 2002-12-24
EP1177067B1 (fr) 2002-12-18
ES2185589T3 (es) 2003-05-01
CZ294212B6 (cs) 2004-10-13
WO2000067947A1 (fr) 2000-11-16
DE19921785A1 (de) 2000-11-23

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