EP1177067B1 - 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 Download PDF

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Publication number
EP1177067B1
EP1177067B1 EP00922668A EP00922668A EP1177067B1 EP 1177067 B1 EP1177067 B1 EP 1177067B1 EP 00922668 A EP00922668 A EP 00922668A EP 00922668 A EP00922668 A EP 00922668A EP 1177067 B1 EP1177067 B1 EP 1177067B1
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EP
European Patent Office
Prior art keywords
grinding
workpiece
grinding wheel
spindle
undulated
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.)
Expired - Lifetime
Application number
EP00922668A
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German (de)
English (en)
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EP1177067A1 (fr
Inventor
Erwin Junker
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Erwin Junker Maschinenfabrik GmbH
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Erwin Junker Maschinenfabrik GmbH
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Publication of EP1177067A1 publication Critical patent/EP1177067A1/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
    • B24B5/02—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 outside diameters on shaft-shaped workpieces in one setup and a grinding machine for performing the method.
  • a universal grinding headstock is already known with the internal and external cylindrical grinding as well as the surface grinding of workpieces is possible in a single setup. This is at each end of the Each headstock has a separately driven grinding spindle.
  • the Grinding spindles carry different grinding wheels. By swiveling the Headstocks around a vertical axis can be optionally three different Position the grinding wheels on the workpiece, which means that the processes of the Have internal and external cylindrical grinding and face grinding carried out.
  • the grinding wheels provided in accordance with the known universal grinding headstock all have the usual shape of cylinder disks.
  • the well-known The machine is not intended for the operations of form grinding and is not suitable.
  • the two grinding spindles are driven directly Electric motors arranged on the headstock, which makes the headstock relatively becomes voluminous and collisions with the workpiece at certain Swivel positions can be done easily.
  • the invention is based on the object of a method for Grinding of convex treads and outer diameters on wave-shaped To create workpieces in one setup.
  • a method for Grinding of convex treads and outer diameters on wave-shaped To create workpieces in one setup.
  • should semi-ellipsoidal or paraboloidal treads are ground.
  • a special grinding machine with which the Disadvantages inherent in the prior art are eliminated. They are supposed to machining shaft parts in one setup with two CBN grinding wheels be ground to the finished product.
  • the method according to the invention is intended also with the help of the special grinding machine individual grinding operations enable on comparable workpieces.
  • the method for grinding shaft parts with convex, in particular semi-ellipsoidal or paraboloidal treads as well as desired exact outer diameters on shaft-shaped workpieces are made in one Clamping on a swiveling grinding headstock.
  • the Grinding headstock includes two arms that have an angle ⁇ , in particular 60 ° is, form and grinding spindles are provided at the free ends.
  • On one grinding spindle is a grinding wheel with at least one concave Side surface for producing a contour-conforming convex tread the shaft part to be machined and one on the other grinding spindle Grinding wheel for generating exact outer diameters on the machining shaft parts clamped.
  • the grinding processing of a undulating workpiece takes place in such a way that the workpiece which has a plane-side section with a large diameter, between the Tips of a workpiece headstock and a tailstock clamped as well is supported at the bearing points of the workpiece with steadies.
  • the opposite side surface of the Grinding wheel designed accordingly if on both sides of the wavy Workpiece section with large diameter to produce convex treads are.
  • the grinding wheel is concave in cross section by pivoting the Grinding headstock from the area of engagement with the wave-shaped Brought workpiece section.
  • the process of Grinding headstock in the X-axis the second grinding wheel against the The outer circumference of the wave-shaped workpiece section is adjusted by one grind exact diameter.
  • the workpiece is replaced by a Feed movement on the Z axis in the direction of the workpiece center axis moved to the infeed of the grinding wheel to create the second convex, especially semi-ellipsoidal or paraboloidal Tread of the undulating workpiece section with respect to the X axis to enable.
  • the second becomes concave, in particular semi-ellipsoidal or paraboloidal side surface of the first grinding wheel with the other side surface of the wavy workpiece section with the large diameter engaged to the second convex with which second concave side surface of the grinding wheel contour-conforming tread to create.
  • the grinding headstock on the X axis becomes the Area of the wavy workpiece section with the large diameter hazards.
  • a second grinding wheel on the other's grinding spindle Arm of the workpiece headstock is clamped and in relation to the arm with the spindle for the first grinding wheel an angle ⁇ , which is preferably 60 ° is, forms, is perpendicular to the longitudinal axis of the wavy workpiece delivered to the desired outside diameter on the corresponding Generate sections of the wavy workpiece.
  • a special grinding machine is suitable for executing the process whose machine bed has a workpiece headstock and one aligned in the longitudinal axis arranged tailstock are arranged, which the feed movement Realize according to the Z axis. Furthermore, in this area The steady rest can be adjusted against the bearing points of the workpiece intended.
  • Behind the arrangement of the workpiece headstock and tailstock a two-armed grinding headstock is provided, with each arm at the end is equipped with a grinding spindle for holding grinding wheels.
  • the Vertical lines intersect in the longitudinal axes of the two grinding spindles a plane at an angle ⁇ of preferably 60 ° in the pivot axis of the two-armed common grinding headstock with the two on it grinding spindles arranged at the ends and carrying the grinding wheel.
  • the grinding headstock can be pivoted in one plane, for example horizontally and can be fed vertically along the X axis to the Z axis.
  • This grinding machine allows the setting of optimal application positions for the Grinding wheels in relation to the workpiece to be machined.
  • the arrangement of the two-armed grinding headstock with the ends attached Grinding spindles for the first and second grinding wheels has the advantage that both Grinding spindles on a common guide to execute the Infeed movement are arranged according to the X axis.
  • This arrangement ensures very high stiffness values including the Grinding slide guide.
  • the high rigidity of the grinding headstock and the Guide system on the guide carriage by grinding in high accuracy values on the one created by grinding Final product. On the other hand, they add up when there are several clampings creeping dimensional inaccuracies until the end product is produced.
  • the high stiffness values of the guidance system therefore improve significantly the process reliability of the method and also bring about a reduction in Wear of the grinding wheels.
  • FIG. 1 shows the one to be used according to the method according to the invention Grinding machine A for grinding workpieces such as wavy ones Transmission parts.
  • Grinding machine A for grinding workpieces such as wavy ones Transmission parts.
  • On the machine bed 1 is a schematic in the front area Grinding table 2 arranged on which the feed movement according to the Z axis is executed along the double arrow. The CNC-controlled required for this Drive is not shown.
  • On the grinding table 2 are a motor driven workpiece headstock 3 and a tailstock 4 on one common longitudinal axis 5 aligned.
  • the finish to be sanded wavy workpiece 10 which is a section with a large Has diameter D is between the workpiece headstock 3 and Tailstock 4 clamped.
  • the workpiece headstock 3 has for this purpose a rotor-driven workpiece spindle 6, which in the front area has a workpiece holder 7 designed as a tip.
  • the opposite, on the grinding table 2 aligned tailstock 4 has a hydraulic axially displaceable tailstock quill 8.
  • This tailstock quill 8 has the workpiece-side end of a tailstock tip 9.
  • 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 In the rear area of the machine bed 1 is a grinding headstock 20 arranged, which is mounted on a guide carriage 21.
  • the Guide carriage 21 is equipped with a feed drive 22, which Infeed movement in the X axis relative to the workpiece 10 is realized.
  • the Guide carriage 21 is hydrostatically supported on guides 23 and aligned perpendicular to the workpiece center axis 5.
  • the guide carriage 21 is consequently slidably arranged according to the CNC axis.
  • the Grinding headstock 20 comprises two arms 24 and 25, each end with HF drive 26 and 27 equipped grinding spindles 28 and 29.
  • the of the longitudinal axes 31 and 32 of the grinding spindles 28 and 29 in one plane outgoing verticals intersect to form an angle ⁇ , for example at an angle ⁇ of 60 °, in the pivot axis 30 of the two Arms 24 and 25 of the grinding headstock 20.
  • the grinding headstock 20 can the angle ⁇ is continuously pivoted as far as the CNC axis be that depending on the area code one or the other longitudinal axis 31 or 32 of Grinding spindle 28 or 29 a position parallel to the longitudinal axis 5 of the workpiece 10 occupies.
  • Each grinding spindle 28, 29 has a grinding wheel 33, 34 fitted.
  • FIG. 2 is the clamping of a pre-ground with allowance a, wavy workpiece 10, the portion 40 with a large Has diameter shown.
  • the measurement is, for example, between 0.1 up to 0.2 mm.
  • the workpiece 10 is between the tip of the workpiece holder 7 the workpiece spindle 6 of the workpiece headstock 3 and the tailstock tip 9 the tailstock quill 8 of the tailstock 4 clamped.
  • Not in Fig. 2 illustrated positioning of the grinding wheels 33 and 34 and the Grinding spindles 28 and 29 can correspond to the position shown in FIG. 1.
  • Fig. 3 is the positioning of the first grinding wheel 33 and shown wavy workpiece 10 in a first method step, at which the longitudinal axis 32 of the grinding spindle 29 by an angle ⁇ with respect to Horizontal is inclined.
  • This angle ⁇ corresponds to that with the first Grinding wheel 33, which is a concave, in particular conical, semi-ellipsoidal or has a paraboloid-shaped side surface 35, achievable convex, in particular semi-ellipsoidal or paraboloidal tread 36 of Workpiece 10, the contour conform with the concave side surface 35th is.
  • the infeed of the first grinding wheel 33 follows the X axis while the feed movement via the Z axis with the aid of the guide slide 21 is performed.
  • the grinding wheel 33 which has two concave, in particular semi-ellipsoidal or paraboloidal side surfaces 35 and 35 ', pivoted in opposite directions by the angle ⁇ ', with corresponding infeed movement along the X axis and feed movement along the Z axis, the grinding wheel 33 with the side surface 35 'to produce the second convex, in particular semi-ellipsoidal or paraboloidal Tread 37 on the section with the large diameter D for use brought.
  • the special grinding machine which is equipped with a pivotable grinding headstock 20, the repeated clamping of wave-shaped workpieces for the purpose of production exact convex, semi-ellipsoidal or paraboloidal treads and exact outer diameter eliminated.
  • the inventive method and the special grinding machine A finished parts manufactured with high dimensional and shape accuracy because an addition of tension-related inaccuracies is excluded.

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

Claims (10)

  1. Procédé de rectification de diamètres extérieurs à la cote exacte et autres surfaces sur des pièces, une première surface étant rectifiée dans un serrage sur une partie de la pièce au cours d'une première opération de rectification à l'aide d'une meule et un diamètre extérieur souhaité de la pièce étant rectifié au cours d'une deuxième opération de rectification à l'aide d'une deuxième meule, caractérisé en ce que, pour rectifier des pièces en forme d'arbre au cours de la première opération de rectification, une portée convexe sur une partie circulaire de la pièce en forme d'arbre est rectifiée à l'aide d'une meule ayant au moins une face latérale concave et un diamètre extérieur souhaité est rectifié au cours de la deuxième opération de rectification sur la partie circulaire ainsi que sur d'autres parties de la pièce en forme d'arbre
  2. Procédé selon la revendication 1, caractérisé en ce qu'une meule ayant deux faces latérales concaves est utilisée au cours de la première opération, qui au cours d'une première étape du processus sert à rectifier une première portée convexe et dans une deuxième étape du processus une deuxième portée convexe sur la partie circulaire de la pièce en forme d'arbre avec un grand diamètre, et en ce que le diamètre extérieur souhaité de la partie ainsi que d'autres parties avec d'autres diamètres extérieurs est ensuite parachevé à l'aide d'une deuxième meule.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la première meule utilisée est une meule avec au moins une face latérale concave et la deuxième meule utilisée est une meule avec une arête circulaire vive ou avec une surface plane.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce qu'on utilise un montage de meules sur lequel la première meule et la deuxième meule sont mises successivement en prise avec les parties de la pièce en forme d'arbre à rectifier par pivotement autour d'un angle α.
  5. Procédé selon la revendication 4, caractérisé en ce qu'on utilise un montage de meules sur lequel l'angle de pivotement α entre la première et la deuxième meules s'élève à 60°.
  6. Rectifieuse dont le berceau (1) comprend dans la partie avant une table de rectification (2) sur laquelle un mouvement d'avance est effectué le long d'un axe Z, une poupée porte-pièce (3) entraínée par rotation et une contre-pointe (4) sont disposées de manière à s'aligner sur un axe longitudinal commun, sur la table de rectification (2), la poupée porte-pièce (3) comprend une broche porte-pièce (6) entraínée en rotation qui est munie dans la partie avant d'un porte-pièce (7) en forme de pointe, la contre-poupée (4) comprend un fourreau (8) qui est muni d'une contre-pointe à l'extrémité côté pièce, une poupée porte-meule (20) logée sur un chariot de guidage (21) se trouve dans la partie arrière du berceau (1), le chariot de guidage (21) est muni d'une commandé d'avance (22) qui effectue un mouvement d'avance dans l'axe des X par rapport à la pièce (10), le chariot de guidage (21) est logé de manière hydrostatique sur des glissières (23) et aligné à angle droit par rapport à l'axe longitudinal (5) de la pièce, la poupée porte-meule (20) comprend deux bras (24, 25) portant chacun côté extrémité des broches porte-meule (28, 29) dont les perpendiculaires partant de leurs axes longitudinaux (31, 32) dans un plan se coupent selon un angle α dans l'axe de pivotement (30) des deux bras (24, 25) de la poupée porte-meule (20), et chaque broche porte-meule (28, 29) comprend une meule (33, 34) pour la mise en oeuvre du procédé selon l'une des revendications 1 à 5, caractérisée en ce que, pour l'exécution de la première opération de rectification, cette meule (34) présente au moins une face latérale concave (35), en ce que des lunettes sont prévues pour supporter la pièce (10), et en ce que le fourreau (8) est déplaçable dans le sens axial par des moyens hydrauliques.
  7. Rectifieuse selon la revendication 6, caractérisée en ce que les deux bras (24, 25) de la poupée porte-meule (20) forment un angle α de 60°.
  8. Rectifieuse selon la revendication 6 ou 7, caractérisée en ce que des broches porte-meule (28, 29) présentant des meules ( 33, 34) entraínées par rotation sont disposées aux extrémités libres des bras (24, 25).
  9. Rectifieuse selon l'une des revendications 7 à 9, caractérisée en ce que les broches porte-meule (28, 29) sont munies de commandes HF (26, 27).
  10. Rectifieuse selon l'une des revendications 7 à 9, caractérisée en ce que la poupée porte-meule (20) est orientable progressivement autour de son axe de pivotement (30).
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

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

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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)

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CN112139917B (zh) * 2020-09-21 2022-02-25 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
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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
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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CN102039549B (zh) * 2009-10-19 2014-07-23 株式会社捷太格特 磨床

Also Published As

Publication number Publication date
CZ20013992A3 (cs) 2002-08-14
EP1177067A1 (fr) 2002-02-06
JP2002543991A (ja) 2002-12-24
ES2185589T3 (es) 2003-05-01
AU4298400A (en) 2000-11-21
RU2247641C2 (ru) 2005-03-10
DE19921785B4 (de) 2005-11-24
US6685536B1 (en) 2004-02-03
DE19921785A1 (de) 2000-11-23
CZ294212B6 (cs) 2004-10-13
BR0010489A (pt) 2002-02-13
DE50000975D1 (de) 2003-01-30
CA2372659A1 (fr) 2000-11-16
WO2000067947A1 (fr) 2000-11-16
JP4473457B2 (ja) 2010-06-02
CA2372659C (fr) 2008-03-18

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