WO2022028871A1 - Procédé d'apprêt d'un outil de meulage - Google Patents

Procédé d'apprêt d'un outil de meulage Download PDF

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Publication number
WO2022028871A1
WO2022028871A1 PCT/EP2021/070168 EP2021070168W WO2022028871A1 WO 2022028871 A1 WO2022028871 A1 WO 2022028871A1 EP 2021070168 W EP2021070168 W EP 2021070168W WO 2022028871 A1 WO2022028871 A1 WO 2022028871A1
Authority
WO
WIPO (PCT)
Prior art keywords
dressing
grinding
tool
machining
removal rate
Prior art date
Application number
PCT/EP2021/070168
Other languages
German (de)
English (en)
Inventor
Uwe KNORR
Frank Müller
Jose Lopez
Original Assignee
KAPP NILES GmbH & Co. KG
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 KAPP NILES GmbH & Co. KG filed Critical KAPP NILES GmbH & Co. KG
Publication of WO2022028871A1 publication Critical patent/WO2022028871A1/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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/075—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels for workpieces having a grooved profile, e.g. gears, splined shafts, threads, worms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
    • B23F21/005—Tools specially adapted for use in machines for manufacturing gear teeth with plural tools on a common axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
    • B23F21/02—Grinding discs; Grinding worms
    • B23F21/026—Grinding worms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
    • B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
    • B23F23/1225—Arrangements of abrasive wheel dressing devices on gear-cutting machines

Definitions

  • the invention relates to a method for dressing a grinding tool using a dressing tool, the grinding tool having at least a first machining section for a first grinding process and at least a second machining section for a second grinding process, both machining sections being profiled using the dressing tool, with the dressing of the first machining section takes place with first predetermined dressing parameters and the dressing of the second machining section takes place with second predetermined dressing parameters, the second predetermined dressing parameters being different from the first predetermined dressing parameters.
  • a generic method for dressing is known from DE 10 2009 021 578 A1. Different profiles of a grinding body with different geometries are provided with different roughnesses. Similar and other solutions are shown in DE 100 25 173 A1, DE 10 2011 120 449 A1 and DE 10 2013 001 197 A1.
  • machining areas are dressed, with a dressing tool carrying out the dressing process with predetermined dressing parameters.
  • the same dressing technology is usually used for both machining areas, i. H. dressing with the same dressing parameters.
  • the grinding tool can be a grinding worm, which consists of a base body made of an abrasive material. During dressing, the machining sections for (rough) grinding and fine grinding or polishing are formed from the base body of the grinding worm.
  • the invention is based on the task of further developing a generic method in such a way that it is possible to achieve an improvement in the component quality when grinding it, with the surface quality in particular being decisive and intended to be improved.
  • the solution to this problem provided by the invention provides that a single dressing tool is used for dressing the first and second machining section and that the specified dressing parameter is the related material removal rate during the dressing process, with the related material removal rate during dressing of the second machining section being at most 80 % of the related material removal rate when dressing the first machining section, with a dressing roller being used as the dressing tool rotates, and wherein the speed of the dressing roller is increased during the dressing of the second machining section.
  • the related material removal rate during dressing of the second machining section is in particular at most 67%, preferably at most 50%, of the related material removal rate during dressing of the first machining section.
  • the relative (or specific) material removal rate Q w indicates how much material (in mm 3 ) the dressing tool removes per millimeter width of the dressing tool and per second from the grinding tool. Accordingly, the unit is mm 3 /(mm s).
  • the related material removal rate when dressing the second machining section can be reduced by reducing the dressing infeed. Alternatively or additionally, it can also be reduced by reducing the web speed.
  • the first machining section is preferably used to carry out a rough grinding process and the second machining section to carry out a fine grinding process or polishing grinding process.
  • the grinding tool is preferably a grinding worm.
  • the first processing section and the second processing section can be formed by different parts of the grinding tool, with the different parts in the type of grain of the abrasive Material differ in the size of the grains of the abrasive material and / or in the bond for the abrasive material.
  • first processing section and the second processing section are designed in one piece and are the same in terms of the type of grain size of the abrasive material, the size of the grains of the abrasive material and the bond for the abrasive material.
  • the speed of the dressing roller when dressing the second machining section is preferably increased by at least 15%, particularly preferably by at least 30%, compared to the speed when dressing the first machining section.
  • the two machining sections are preferably geometrically identical but dressed with different surface structures.
  • the proposed method advantageously achieves a higher surface quality on the workpiece in the processing area for fine grinding or polishing.
  • the latter area is dressed with a reduced relative material removal rate.
  • the changed material removal rate can be achieved in particular by changing the dressing infeeds and/or by changing the web speed during dressing.
  • the dresser speed is also increased, i. H. the speed of the dressing roller.
  • One way of designing the proposed method is to use a one-piece tool (grinding worm) and to to divide into two areas, which are then dressed differently as described above.
  • the proposed procedure achieves the result that the microstructure of the surface of the grinding tool is different when the machining sections are geometrically the same as a result of the dressing process, and thus leads to different grinding results during grinding.
  • the preferred application of the proposed method is generating gear grinding with the combined use of a pre-grinding process (using the first machining section) and a polishing or fine-grinding process (using the second machining section).
  • a grinding tool 1 is shown in the form of a grinding worm, the grinding worm having two different processing has sections, namely a first machining section 3 and a second machining section 4.
  • the first machining section 3 is used for rough-grinding a gear (not shown), while the second machining section 4 is used for fine grinding or polishing grinding.
  • a dressing tool 2 here in the form of a dressing roller, is used for this purpose. This rotates around its axis of rotation during dressing.
  • the dressing is carried out in such a way that the first machining section 3 is dressed with a higher relative material removal rate Q w than the second machining segment 4.
  • the relative material removal rate Q W 2 for the second machining segment 4 is only 50% of the relative material removal rate Q wi for the first processing section 3.
  • the surface of the grinding worm is designed in such a way that the surface quality of the ground gear wheel is improved during fine grinding or polishing.
  • the parameters that can be changed to influence the material removal rate are, in particular, the dressing infeed z, with which the dressing tool is fed onto the grinding worm during dressing, and the path speed v, with which the dressing tool and grinding worm move relative to one another in the axial direction.
  • the parameters z and v are entered schematically in the figure. Reference list:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

L'invention concerne un procédé d'apprêt d'un outil de meulage (1) au moyen d'un outil d'apprêt (2), l'outil de meulage (1) ayant au moins une première partie de travail (3) pour une première opération de meulage et au moins une seconde partie de travail (4) pour une seconde opération de meulage. Les deux parties de travail (3, 4) sont profilées au moyen de l'outil d'apprêt (2). L'apprêt de la première partie de travail (3) est effectué à l'aide de premiers paramètres d'apprêt présélectionnés et l'apprêt de la seconde partie de travail (4) est effectué à l'aide de seconds paramètres d'apprêt présélectionnés, les seconds paramètres d'apprêt présélectionnés étant différents des premiers paramètres d'apprêt présélectionnés. Afin d'obtenir une amélioration de la qualité du composant lors du meulage de celui-ci, l'invention prévoit qu'un outil d'apprêt (2) unique est utilisé pour apprêter les première et seconde parties de travail (3, 4) et que le paramètre d'apprêt présélectionné est le taux d'enlèvement de matériau spécifique (Qw) pendant l'opération d'apprêt. Le taux d'enlèvement de matériau spécifique (Qw2) pendant l'apprêt de la seconde partie de travail (4) est égal au plus à 80 % du taux d'enlèvement de matériau spécifique (Qw1) pendant l'apprêt de la première partie de travail (3), un rouleau d'apprêt, qui tourne pendant l'apprêt, étant utilisé en tant qu'outil d'apprêt (2), et la vitesse de rotation du rouleau d'apprêt étant augmentée pendant l'apprêt de la seconde partie de travail (4).
PCT/EP2021/070168 2020-08-01 2021-07-19 Procédé d'apprêt d'un outil de meulage WO2022028871A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020120363 2020-08-01
DE102020120363.2 2020-08-01

Publications (1)

Publication Number Publication Date
WO2022028871A1 true WO2022028871A1 (fr) 2022-02-10

Family

ID=77042989

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/070168 WO2022028871A1 (fr) 2020-08-01 2021-07-19 Procédé d'apprêt d'un outil de meulage

Country Status (1)

Country Link
WO (1) WO2022028871A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022108041A1 (de) 2022-04-04 2023-10-05 KAPP NILES GmbH & Co. KG Verfahren zum Abrichten einer mehrgängigen Schleifschnecke und Abrichtvorrichtung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211476A (en) * 1981-06-17 1982-12-25 Hitachi Ltd Grinding method
DE10025173A1 (de) 2000-05-24 2001-11-29 Swarovski Tyrolit Schleif Verfahren zum Schleifen von insbesondere Nickel enthaltenden metallischen Werkstücken
DE102009021578A1 (de) 2009-05-15 2010-11-18 Höfler Maschinenbau GmbH Verfahren zur Bearbeitung eines Zahnrades
EP2253426A2 (fr) * 2009-05-19 2010-11-24 Saint-Gobain Abrasives, Inc. Appareil et procédé de rectification des cylindres
EP2347856A2 (fr) * 2010-01-26 2011-07-27 Höfler Maschinenbau GmbH Procédé de conception d'un procédé de meulage de profil
DE102011120449A1 (de) 2011-12-07 2013-06-13 Gleason-Pfauter Maschinenfabrik Gmbh Verfahren zum Schleifen von verzahnten Werkstücken und dazu ausgelegte Vorrichtung
DE102013001197A1 (de) 2013-01-24 2014-07-24 Liebherr-Verzahntechnik Gmbh Werkzeug zum Schleifen von verzahnten Werkstücken mit Kollisionskontur
DE102016010893A1 (de) * 2016-09-12 2018-03-15 Liebherr-Verzahntechnik Gmbh Vorrichtung und Verfahren zum Bearbeiten von Schleifschnecken
DE102018126259A1 (de) * 2018-10-22 2020-04-23 Klingelnberg Ag Verfahren zum Abrichten einer Schleifschnecke und Vorrichtung zum Abrichten einer Schleifschnecke

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211476A (en) * 1981-06-17 1982-12-25 Hitachi Ltd Grinding method
DE10025173A1 (de) 2000-05-24 2001-11-29 Swarovski Tyrolit Schleif Verfahren zum Schleifen von insbesondere Nickel enthaltenden metallischen Werkstücken
DE102009021578A1 (de) 2009-05-15 2010-11-18 Höfler Maschinenbau GmbH Verfahren zur Bearbeitung eines Zahnrades
EP2253426A2 (fr) * 2009-05-19 2010-11-24 Saint-Gobain Abrasives, Inc. Appareil et procédé de rectification des cylindres
EP2347856A2 (fr) * 2010-01-26 2011-07-27 Höfler Maschinenbau GmbH Procédé de conception d'un procédé de meulage de profil
DE102011120449A1 (de) 2011-12-07 2013-06-13 Gleason-Pfauter Maschinenfabrik Gmbh Verfahren zum Schleifen von verzahnten Werkstücken und dazu ausgelegte Vorrichtung
DE102013001197A1 (de) 2013-01-24 2014-07-24 Liebherr-Verzahntechnik Gmbh Werkzeug zum Schleifen von verzahnten Werkstücken mit Kollisionskontur
DE102016010893A1 (de) * 2016-09-12 2018-03-15 Liebherr-Verzahntechnik Gmbh Vorrichtung und Verfahren zum Bearbeiten von Schleifschnecken
DE102018126259A1 (de) * 2018-10-22 2020-04-23 Klingelnberg Ag Verfahren zum Abrichten einer Schleifschnecke und Vorrichtung zum Abrichten einer Schleifschnecke

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022108041A1 (de) 2022-04-04 2023-10-05 KAPP NILES GmbH & Co. KG Verfahren zum Abrichten einer mehrgängigen Schleifschnecke und Abrichtvorrichtung
EP4257276A1 (fr) 2022-04-04 2023-10-11 Kapp Niles GmbH & Co. KG Procédé de dressage d'une meule à vis à plusieurs pas

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