WO2005115666A9 - Outil rotatif a tige - Google Patents

Outil rotatif a tige

Info

Publication number
WO2005115666A9
WO2005115666A9 PCT/DE2005/000977 DE2005000977W WO2005115666A9 WO 2005115666 A9 WO2005115666 A9 WO 2005115666A9 DE 2005000977 W DE2005000977 W DE 2005000977W WO 2005115666 A9 WO2005115666 A9 WO 2005115666A9
Authority
WO
WIPO (PCT)
Prior art keywords
channel
flutes
section
cooling
lubricant channel
Prior art date
Application number
PCT/DE2005/000977
Other languages
German (de)
English (en)
Other versions
WO2005115666A2 (fr
WO2005115666A3 (fr
Filing date
Publication date
Priority claimed from DE200420008566 external-priority patent/DE202004008566U1/de
Application filed filed Critical
Publication of WO2005115666A2 publication Critical patent/WO2005115666A2/fr
Publication of WO2005115666A3 publication Critical patent/WO2005115666A3/fr
Publication of WO2005115666A9 publication Critical patent/WO2005115666A9/fr

Links

Definitions

  • the invention relates to a rotary shaft tool according to the preamble of claim 1.
  • a rotating shaft tool which comprises a shaft in which a longitudinally extending main channel for coolant / lubricant is provided. Furthermore, the shaft tool has a cutting head connected to the shaft, which has flutes and a groove outlet region, with a sleeve extending between the groove outlet region and the shaft.
  • the sleeve covers a supply channel formed between the main channel and the Nutenauslauf Anlagen, wherein the feed channel is provided substantially axially parallel to the longitudinal central axis of the shaft and the cutting head having a paragraph-free transition from the main channel to the feed channel and the feed channel to the Nutenauslauf Schl.
  • a Mehrbulreibahle which consists of a shaft portion with a running at its interior, in the axial direction of the channel for cooling lubricant and an axially connected to the shaft part, the tool cutting edges and the flutes cutting head, wherein the cutting part and the cutting head by means of a bore and Pins formed frictionally acting plug-in connection are interconnected.
  • the pin of the plug-in connection is formed as a cylindrical fitting pin on the cutting part, while the associated bore is formed as a fitting bore in the shaft part.
  • the cutting part with flutes extends over the entire journal length. In the rear region of the bore in the mouth region of the shaft part extending throughdes ⁇ hmierstoffbohrung a franking is formed.
  • the plug-in connection is produced by a shrinkage effected essentially by the shaft part.
  • the invention has for its object to provide a rotary shaft tool according to the preamble of claim 1, wherein the cooling lubricant supply to cutting or flutes of a cutting head is further improved.
  • the invention is based on a shaft tool which comprises a shaft part with a coolant lubricant channel running axially through the shaft part and a cutting head with cutting edges and flutes, which has a flute outlet region which is connected axially aligned with the shaft part.
  • the Spannutenauslauf Schl is arranged in a matching bore in the shaft part, for example as a fitting pin and fitting hole.
  • the shaft part is shrunk with bore on the Nutenauslauf Anlagen.
  • the flutes of the flute outlet region open into the lubricant channel.
  • the core of the invention lies in the fact that the coolant lubricant channel has a substantially constant flow cross section up to the flutes.
  • an optimized coolant / lubricant supply is provided, in particular in the case of a minimum quantity lubrication (MQL).
  • the procedure according to the invention is based on the finding that coolant lubricant supplies, which have different channel cross-sections from a rear end of the main channel to a groove outlet region of the cutting head, exhibit comparatively strong turbulences of the coolant lubricant. Because as a result of different cooling channel cross sections, fine oil droplets impinge on enlarged or reduced transition sections, with the result that the deflected coolant lubricant components strike lubricant portions which are not deflected in the direction of flow, which produces turbulence.
  • Minimal quantity lubrication takes place regularly at an air pressure of 4 to 6 bar and an oil admixture per tool of 15 ml / is 60 ml / h, in particular 20 ml / h to 50 ml / h.
  • an oil admixture per tool of 15 ml / is 60 ml / h, in particular 20 ml / h to 50 ml / h.
  • the outer boundary of the coolant lubricant channel widens in a transition section or sleeve region in the vicinity of the flute outlet region in the direction of the flutes. This makes it possible to achieve a paragraph-free adaptation of the flow cross section.
  • the flute outlet region is formed in the transition section or adapted to the shaft part such that the channel section forming thereby maintains a substantially constant flow cross section.
  • the transition section of the coolant channel has a conical geometry. This can be produced comparatively easily. However, also conceivable round spherical shell-like forms of coolant lubricant channel.
  • the cross section of the flutes in the flute outlet region is tuned to the cooling channel cross section.
  • the sum of all flute cross sections may at least partially correspond to the flow cross section of the cooling channel. This will continue a constant flow cross section in the flute outlet area.
  • the transition section of the cooling channel is provided in a tapered portion of the shaft part. In this context, it is also advantageous if the tapered portion of the shaft portion has a smaller diameter than the diameter of the cutting head. Thus, undisturbed machining can also be carried out in comparatively deep holes.
  • FIG. 2 shows the reamer from FIG. 1 in an end view
  • FIG. 3 shows an axial section according to the section line B-B in FIG. 2,
  • FIG. 4 shows a radial section along the section line C - C in FIG. 3,
  • FIG. 5 shows a side view of a further reamer
  • Figure 6 is an axial section of the reamer after
  • FIG. 7 shows a radial section along the section line BB in FIG. 6. Description of the embodiments
  • FIG. 5 shows a first reamer 1 which comprises a shank 2 with a sleeve 3 in which a cutting head 4 is formed.
  • An end portion 5 of the shank 2 is adapted to be received in a conventional chuck of a machine tool.
  • the cutting head 4 is provided with axially extending cutting edges and corresponding flutes 6 (see in particular FIGS. 2 and 4). Within the sleeve 3, these flutes continue in a Nutauslauf Society 7, which is surrounded by the sleeve 3, but by a
  • the flutes 6 of the Nutenauslauf Anlagens open into an axial channel 8 for coolant / lubricant.
  • the axial channel 8 in a transition region 9, through which the section C-C in FIG. 3 extends, the axial channel 8 widens in a cone-like manner, whereas an end region 5 of the groove outlet region 7 of the snow head 3 conically projects into the widened region of the axial channel 8.
  • the axial channel 8 can expand up to the grooves 6 of the Nutenauslauf Schemes 8, without changing the flow cross-section of the axial channel 8 to the flutes 6.
  • FIG. 5 shows a further embodiment of a reamer 50, which differs from the embodiment according to FIG. 1 in that the flutes 54 and also cutting edges a cutting head 51 with Nutenauslauf Schl 52 not axially, but coiled.
  • An axial channel 53 for coolant / lubricant 53 expands according to the embodiment according to Figures 1 to 4 to the flutes 54 (see Figure 7) also cone-like, with an outer wall 55 of a conical jacket channel 56 formed thereby, for example, an angle ⁇ of about 40th Degree and an inner wall 57 of the cone sheath channel 56, for example, an angle ß of about 60 degrees to the axis 58 occupies.
  • the outer wall 55 of the conical jacket channel 56 is formed in a shaft region 59 and the inner wall 57 of the conical jacket channel 56 through one end of the groove outlet region 52.

Abstract

L'invention concerne un outil rotatif (1) à tige comprenant une partie tige, traversée dans l'axe par un conduit pour lubrifiant réfrigérant (8), et une tête de coupe (4) pourvue de lames et de rainures (6). La tête de coupe comporte une zone (7) de sortie de rainures, reliée dans l'axe à la partie tige, des rainures (6) de cette zone débouchant dans le conduit pour lubrifiant réfrigérant (8). L'invention est caractérisée en ce que le conduit pour lubrifiant réfrigérant (8) a un diamètre sensiblement identique jusqu'aux rainures (6).
PCT/DE2005/000977 2004-05-26 2005-05-27 Outil rotatif a tige WO2005115666A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200420008566 DE202004008566U1 (de) 2004-05-26 2004-05-26 Hochleistungsreibahle für MMS
DE202004008566.6 2004-05-27

Publications (3)

Publication Number Publication Date
WO2005115666A2 WO2005115666A2 (fr) 2005-12-08
WO2005115666A3 WO2005115666A3 (fr) 2006-03-16
WO2005115666A9 true WO2005115666A9 (fr) 2006-04-20

Family

ID=35160567

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/000977 WO2005115666A2 (fr) 2004-05-26 2005-05-27 Outil rotatif a tige

Country Status (2)

Country Link
DE (1) DE202004008566U1 (fr)
WO (1) WO2005115666A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007023167A1 (de) 2007-05-20 2008-11-27 Gühring Ohg Spanabhebendes Werkzeug
DE102007023168A1 (de) 2007-05-20 2008-11-27 Gühring Ohg Drehantreibbares spanabhebendes Werkzeug
DE102012216128A1 (de) 2012-09-12 2014-03-13 Gühring KG Maschinen-Reibahle
CN108262527A (zh) * 2016-12-30 2018-07-10 李仕清 一种铰刀
DE102018202383A1 (de) * 2018-02-16 2019-08-22 Gühring KG Zerspanungswerkzeug mit integrierten kühlschmiermittelzufuhrsystem
DE102021120357A1 (de) 2021-08-05 2023-02-09 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Schneideinsatz und werkzeug zur spanenden bearbeitung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216107A (en) * 1965-05-27 1965-11-09 Rudolf W Andreasson Fluid cooled reamer with land channel
US3370489A (en) * 1966-02-09 1968-02-27 Detroit Reamer & Tool Company Reamer
DE8901178U1 (fr) * 1989-02-03 1989-03-23 Ringfeder Gmbh, 4150 Krefeld, De
CH690026A5 (de) * 1994-07-02 2000-03-31 Beck August Gmbh Co Rotierendes Schaftwerkzeug.
DE19544556A1 (de) * 1995-11-29 1997-06-05 Beck August Gmbh Co Rotierendes Schaftwerkzeug
DE10121986B4 (de) * 2001-05-05 2007-01-11 Iscar Ltd. Mehrschneiden-Reibahle mit innerer Kühlmittelzufuhr

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