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WO2019161822A1 - Procédé et dispositif destinés à rogner des pièces à usiner dentées - Google Patents

Procédé et dispositif destinés à rogner des pièces à usiner dentées Download PDF

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Publication number
WO2019161822A1
WO2019161822A1 PCT/DE2019/000039 DE2019000039W WO2019161822A1 WO 2019161822 A1 WO2019161822 A1 WO 2019161822A1 DE 2019000039 W DE2019000039 W DE 2019000039W WO 2019161822 A1 WO2019161822 A1 WO 2019161822A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
chamfering
chamfering tool
cutting
degrees
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.)
Ceased
Application number
PCT/DE2019/000039
Other languages
German (de)
English (en)
Inventor
Joerg Lohmann
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.)
EMAG GmbH and Co KG
Original Assignee
EMAG GmbH and 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 EMAG GmbH and Co KG filed Critical EMAG GmbH and Co KG
Publication of WO2019161822A1 publication Critical patent/WO2019161822A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
    • B23F19/10—Chamfering the end edges of gear teeth
    • B23F19/102—Chamfering the end edges of gear teeth by milling
    • B23F19/107—Chamfering the end edges of gear teeth by milling the tool being a fly cutter
    • 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
    • B23F21/12—Milling tools
    • B23F21/20—Fly cutters
    • B23F21/203—Fly cutters with inserted cutting elements
    • B23F21/206—Fly cutters with inserted cutting elements in exchangeable arrangement

Definitions

  • the invention relates to a method and a device for frontally chamfering toothed workpieces according to the preamble of patent claim 1 and claim 6.
  • the invention has for its object to further develop the processing of gears useful advantage.
  • the object is achieved by a method according to the invention according to claim 1 and a device according to the invention according to claim 6.
  • Advantageous developments are subject of the dependent claims.
  • the method according to the invention as well as the device according to the invention has a chamfering tool designed as a chamfering cutter which moves tangentially through the toothing of the work wheel and has the following method steps:
  • measuring devices are provided by means of which the manufacturing quality of the workpieces can be monitored parallel to the main time. If necessary, the angular position of the workpieces can be detected with sensors.
  • the chamfer profile is produced in this method according to the invention by overlapping envelopes. Due to the setting angle Eta and the design of the tangential feed, the design of the chamfer can be influenced without requiring, for example, a logistically and costly complicated adaptation or modification of the profile (re-profiling) of the tool.
  • the cutting work is divided into several small chip cross sections. Each tooth performs a different envelope cut and thus a good distribution of the cutting load is achieved and thus a very good wear behavior is expected.
  • the Chamfer-Cut process requires multiple workpiece rotations, with the single cutting edge always cutting exactly the same cross-section. Needle chips, which are more difficult to filter, are also a major disadvantage.
  • percussion teeth advantageously allows the use of carbide, CBN, cermet and other high-performance cutting materials that (as of today) are not yet used in chamfering. This allows higher stalls, but also higher cutting speeds and thus shorter cycle times than usual today.
  • Fig. 1 shows an embodiment of the chamfering tool.
  • Fig. 2 shows the engagement of the chamfering tool 2 on the gear / gear. 1
  • 5 shows a device or machine tool for carrying out the
  • Fig. 2 and Fig. 4 the engagement of the chamfering tool 2 on the gear 1 is shown.
  • the gear wheel 1 is drivable about a rotation axis 8 'and the chamfering tool 2 about a rotation axis 8.
  • the rotation axes 8, 8' of the chamfering tool 2 and the gear wheel 1 can be arranged skewed relative to one another and can over
  • the chamfering tool 2 has at least one on one
  • a second Anfastechnikzaug 2 'with at least one other cutting edge 3' is provided which rotates opposite to the direction of rotation of the first Anfastechnikmaschine 2 or whose at least one tool cutting edge 3 opposite is aligned with the direction of rotation of the first chamfering tool 2.
  • the processing is done by a comparable with hobbing rolling off, the active site between
  • Tool cutting edge 3, 3 'and end edge 5 during chamfering along the cutting edge 4 moves.
  • the end edges of any teeth can be chamfered with the device.
  • Fig. 5 shows a hobbing machine or a separate chamfering device, wherein in the machining of helical gears, the tool 1 the
  • Helix angle of the toothing is inclined or pivoted in accordance with the axis A.
  • axis A For this purpose is - not shown - the
  • Processing head which the tools 1 or a tools. 1
  • a disk-shaped cutting tool is used.
  • This may be, for example, a disc milling cutter or a form milling cutter or an impact tooth cassette which has at least one or more cutting edges or at least one mounted impaction tooth or a plurality.
  • This tool 2 is placed at a certain angle (for example, below 45 degrees) to the toothing to be tapped the work wheel 1 (see Fig. 2). If necessary, an adjustment of the jig is required to avoid a potential collision.
  • the tool 2 has, for example, four blades 3 (see FIG. 1).
  • the cutting edges or cutter teeth 3 of the tool 2 or - not shown in detail - the impact teeth of the impaction tooth cassette are profiled according to the transformed profile and additionally attached a clearance angle along the profile.
  • the work gear 1 and the chamfering tool configured as a chamfer 2 rotate in the speed ratio of their numbers of teeth.
  • Z tool corresponds to the number of cutting edges of the tool.
  • the milling tool can be inclined by an adjustment angle Eta (see Fig. 3). This is calculated as: h - arctan
  • the Anfaswerkmaschine 2 is placed at the beginning of the processing cycle to final milling depth 1 1 in the Zustellachse Z. Under continuous rotation of the coupled axes, the tool 2 moves in a tangential feed 12 relative to the work gear 1 in the teeth to be tapped 13 (see Fig. 4).
  • the clipping result i. Angle and bevel shape
  • the cutting conditions are influenced by an additional change of the setting angle Eta.
  • This can be influenced via the swivel axis of the chamfering device (A-axis of the machine).
  • This pivotal movement of the tool is superimposed on the tangential feed.
  • the setting angle Eta of the tool changes with continuous tangential path.
  • an interpolation in the Z-axis can take place simultaneously.
  • the pivot angle reaches its "relative zero point" when the tool 2 is orthogonal to the vertical Maschinenradachse 7.
  • the angle Eta with continuous tangential feed can vary by +/- 10 degrees from the "base angle Eta", which is preferably 6 degrees, that is from 16 degrees to -4 degrees.
  • Another possibility of influencing the bevel formation is to drive the tangential feed discontinuously or to introduce a continuously changing offset in the coupling ratio of the rotary axes.
  • the machining is completed on one side. It is shifted to the second tool 2 'with opposite cutting direction, the cutting direction inverted and the second side of the gear in the same process chamfered (see Fig. 5).
  • the tools 1 for both sides of the workpiece can - not shown in detail - are mounted next to the gear hob for the production of the teeth of the work wheel 1 on the same milling mandrel and come on a hobbing machine used.
  • the method can also be used on a separate chamfering machine or a device integrated in the gear cutting machine.
  • the distance between the two Anfastechnikmaschinee 2 on the tool holder mandrel to each other selected such that the tool 2 with the direction of rotation reversed cutting direction (which is currently not in use), runs empty through the existing tooth gaps of the work gear 1, while the other tool 2 straight in Intervention is.
  • the required Shiftweg, performed by the Y-axis of the machine tool can be reduced advantageously.
  • the chamfering tool 2 can be provided with at least two cutting tools 3, 3 '.
  • the upper and lower sides of the work wheels 1 or toothed wheels 1 are each assigned at least one chamfering tool 2, 2 '.
  • the angle Eta with continuous tangential feed changes by +/- 10 degrees from the "base angle Eta", which is preferably in particular 6 degrees, that is to say preferably 16 degrees to -4 degrees.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Processing (AREA)

Abstract

L'invention concerne un procédé et un dispositif destinés à rogner et à ébavurer frontalement des roues dentées (1) avec un outil de rognage (2) pourvu d'au moins un tranchant d'outil (3) réalisé sous forme de plaque de coupe pourvu d'au moins une arête de coupe (4), au moins un outil de rognage (2) conçu comme une fraise de rognage se déplaçant tangentiellement à travers la denture de la roue à usiner (1), l'outil de rognage (2) étant réglé sur des profondeurs de fraisage (11) finales dans l'axe de passe (Z) lors d'une première étape de procédé et l'outil de rognage (2) étant introduit ou déplacé sous l'effet d'une rotation continue de l'outil de rognage (2) et de la roue à usiner (1) dans une avance tangentielle (12) par rapport à la roue à usiner (1) dans la denture (13) à rogner lors d'une autre étape de procédé.
PCT/DE2019/000039 2018-02-21 2019-02-20 Procédé et dispositif destinés à rogner des pièces à usiner dentées Ceased WO2019161822A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018001388.0A DE102018001388A1 (de) 2018-02-21 2018-02-21 Verfahren und Vorrichtung zum Anfasen verzahnter Werkstücke
DE102018001388.0 2018-02-21

Publications (1)

Publication Number Publication Date
WO2019161822A1 true WO2019161822A1 (fr) 2019-08-29

Family

ID=66793712

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2019/000039 Ceased WO2019161822A1 (fr) 2018-02-21 2019-02-20 Procédé et dispositif destinés à rogner des pièces à usiner dentées

Country Status (2)

Country Link
DE (1) DE102018001388A1 (fr)
WO (1) WO2019161822A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1495824A2 (fr) 2003-07-05 2005-01-12 Fette GmbH Procédé, dispositif et outil pour la chanfreinage des extrémités frontales des entre-dents de pièces dentées
DE102005054237A1 (de) * 2005-11-14 2007-05-16 Weigl Engineering Gmbh Verfahren und Vorrichtung zur Herstellung von Dachflächen und Anfasungen an verzahnten Getriebekomponenten
DE202007006751U1 (de) * 2007-05-10 2007-07-19 Klingelnberg Ag Entgratmesserkopf mit Wendeplatten zum Sekundärentgraten
EP2786824A2 (fr) * 2013-03-28 2014-10-08 LIEBHERR-VERZAHNTECHNIK GmbH Dispositifs et procédé de chanfreinage d'une pièce
DE102015012908B3 (de) 2015-10-06 2016-12-15 Emag Holding Gmbh Verfahren und Vorrichtung zum Herstellen und Entgraten von Verzahnungen
EP3147060A1 (fr) * 2015-09-28 2017-03-29 Liebherr-Verzahntechnik GmbH Procédé d'ébavurage d'une ebauche d'engrenage et dispositif pour la mise en oeuvre d'un tel procédé

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1495824A2 (fr) 2003-07-05 2005-01-12 Fette GmbH Procédé, dispositif et outil pour la chanfreinage des extrémités frontales des entre-dents de pièces dentées
DE102005054237A1 (de) * 2005-11-14 2007-05-16 Weigl Engineering Gmbh Verfahren und Vorrichtung zur Herstellung von Dachflächen und Anfasungen an verzahnten Getriebekomponenten
DE202007006751U1 (de) * 2007-05-10 2007-07-19 Klingelnberg Ag Entgratmesserkopf mit Wendeplatten zum Sekundärentgraten
EP2786824A2 (fr) * 2013-03-28 2014-10-08 LIEBHERR-VERZAHNTECHNIK GmbH Dispositifs et procédé de chanfreinage d'une pièce
EP3147060A1 (fr) * 2015-09-28 2017-03-29 Liebherr-Verzahntechnik GmbH Procédé d'ébavurage d'une ebauche d'engrenage et dispositif pour la mise en oeuvre d'un tel procédé
DE102015012908B3 (de) 2015-10-06 2016-12-15 Emag Holding Gmbh Verfahren und Vorrichtung zum Herstellen und Entgraten von Verzahnungen

Also Published As

Publication number Publication date
DE102018001388A1 (de) 2019-08-22

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