WO2005115666A2 - Outil rotatif a tige - Google Patents

Outil rotatif a tige Download PDF

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Publication number
WO2005115666A2
WO2005115666A2 PCT/DE2005/000977 DE2005000977W WO2005115666A2 WO 2005115666 A2 WO2005115666 A2 WO 2005115666A2 DE 2005000977 W DE2005000977 W DE 2005000977W WO 2005115666 A2 WO2005115666 A2 WO 2005115666A2
Authority
WO
WIPO (PCT)
Prior art keywords
section
channel
outlet area
flutes
cooling
Prior art date
Application number
PCT/DE2005/000977
Other languages
German (de)
English (en)
Other versions
WO2005115666A3 (fr
WO2005115666A9 (fr
Inventor
Gerhard Schanz
Original Assignee
Gühring Ohg
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 Gühring Ohg filed Critical Gühring Ohg
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

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00—Reaming tools
    • B23D77/006—Reaming tools with means for lubricating or cooling

Definitions

  • the invention relates to a rotating shaft tool according to the preamble of claim 1.
  • a rotating shank tool which comprises a shank in which a longitudinally extending main channel for cooling / lubricating means is provided. Furthermore, the shank tool has a cutting head connected to the shank, which has flutes and a groove outlet area, with a sleeve extending between the groove outlet area and the shaft. The sleeve covers a feed channel formed between the main channel and the groove outlet area, the feed channel being provided essentially axially parallel to the longitudinal center axis of the shaft and the cutting head, which has a step-free transition from the main channel to the feed channel and from the feed channel to the groove outlet area.
  • a multi-cutting reamer which consists of a shank part with a channel for cooling lubricants running on the inside thereof in the axial direction and a cutting head axially connected to the shank part and having the cutting edges and the flutes, the cutting part and the cutting head being made 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 designed as a fitting hole in the shaft part.
  • the cutting part with flutes extends over the entire length of the tenon.
  • a clearing is formed in the rear area of the bore in the mouth area of the cooling lubricant bore penetrating the shaft part.
  • the plug-in connection is produced by shrinking on, essentially caused by the shaft part.
  • the invention has for its object to provide a rotating shank tool according to the preamble of claim 1, in which the cooling lubricant supply to cut or flutes of a cutting head is further improved.
  • the invention is based on a shank tool which comprises a shank part with a coolant channel running axially through the shank part and a cutting head with cutting edges and flutes which has a flute outlet area which is connected to the shank part in an axially aligned manner.
  • the flute outlet area is preferably arranged in a suitable hole in the shaft part, for example as a fitting pin and fitting hole.
  • the shaft part with the bore is shrunk onto the slot outlet area.
  • the flutes of the flute outlet area open into the lubricant channel.
  • the essence of the invention is that the coolant channel has a substantially constant flow cross-section up to the flutes. This measure provides an optimized coolant / lubricant supply, in particular with low internal lubrication (MQL).
  • the procedure according to the invention is based on the knowledge that cooling lubricant supplies which have different channel cross sections from a rear end of the main channel to a groove outlet area of the cutting head show comparatively strong turbulence of the cooling lubricant.
  • fine oil droplets collide with enlarged or reduced transition sections, with the result that the deflected cooling lubricant components meet lubricating components that are not deflected in the direction of flow, which causes turbulence.
  • Low-quantity lubrication is carried out regularly at an air pressure of 4 to 6 bar and an oil addition per tool from 15 ml / h to 60 ml / h, in particular 20 ml / h to 50 ml / h.
  • the outer boundary of the cooling lubricant channel widens in a transition section or sleeve area in the vicinity of the chip groove outlet area in the direction of the chip grooves. This enables a smooth adjustment of the flow cross-section.
  • the chip groove outlet area is shaped in the transition section or adapted to the shaft part in such a way that the channel section formed thereby maintains an essentially constant flow cross section.
  • the transition section of the coolant channel has a conical geometry. This is comparatively easy to manufacture. However, round spherical shell-like shapes of the cooling lubricant channel are also conceivable.
  • the cross section of the flutes in the flute outlet area is matched to the cooling channel cross section.
  • the sum of all flute cross sections can at least partially correspond to the flow cross section of the cooling channel. This means that a constant flow cross-section is also continued in the chip groove outlet area.
  • the transition section of the cooling channel is provided in a tapered section of the shaft part. In this context, it is also advantageous if the tapered section of the shaft part has a smaller diameter than the diameter of the cutting head. This means that undisturbed machining can also be carried out in comparatively deep holes.
  • FIG. 1 shows a reamer in a side view
  • FIG. 2 shows the reamer from FIG. 1 in an end view
  • FIG. 3 shows an axial section along 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
  • FIG. 6 shows an axial section of the reamer according to FIG. 5 along the section line A-A in FIGS
  • 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 shaft 2 with a sleeve 3, in which a cutting head 4 is molded.
  • An end region 5 of the shaft 2 is designed to be accommodated 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 groove outlet ereic 7, which is surrounded by the sleeve 3, but by a
  • the flutes 6 of the slot outlet area open into an axial channel 8 for coolant / lubricant.
  • the axial channel 8 widens conically, whereas an end region 5 of the groove outlet region 7 of the snow head 3 projects conically into the widened region of the axial channel 8.
  • the axial channel 8 can widen up to the grooves 6 of the groove outlet area 8 without the flow cross section of the axial channel 8 changing up to the chip grooves 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 cutting edges of a cutting head 51 with a groove outlet area 52 does not run axially but in a spiral.
  • An axial channel 53 for coolant / lubricant 53 also widens conically, according to the embodiment according to FIGS. 1 to 4, to the flutes 54 (see FIG. 7), an outer wall 55 of a conical jacket channel 56 formed thereby, for example, an angle ⁇ of approximately 40 Degrees and an inner wall 57 of the conical jacket channel 56, for example, an angle ⁇ of about 60 degrees to the axis 58.
  • 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 is formed by one end of the groove outlet area 52.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Drilling Tools (AREA)

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 true WO2005115666A2 (fr) 2005-12-08
WO2005115666A3 WO2005115666A3 (fr) 2006-03-16
WO2005115666A9 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108262527A (zh) * 2016-12-30 2018-07-10 李仕清 一种铰刀

Families Citing this family (5)

* 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
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

Citations (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
DE19544556A1 (de) * 1995-11-29 1997-06-05 Beck August Gmbh Co Rotierendes Schaftwerkzeug
US5733076A (en) * 1994-07-02 1998-03-31 Basteck; Andreas Rotating shank-type tool
DE10121986A1 (de) * 2001-05-05 2002-11-07 Hornung Gmbh Hermann Hornung P Mehrschneidenreibahle mit innerer Kühlmittelzufuhr

Patent Citations (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
US5733076A (en) * 1994-07-02 1998-03-31 Basteck; Andreas Rotating shank-type tool
DE19544556A1 (de) * 1995-11-29 1997-06-05 Beck August Gmbh Co Rotierendes Schaftwerkzeug
DE10121986A1 (de) * 2001-05-05 2002-11-07 Hornung Gmbh Hermann Hornung P Mehrschneidenreibahle mit innerer Kühlmittelzufuhr

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108262527A (zh) * 2016-12-30 2018-07-10 李仕清 一种铰刀

Also Published As

Publication number Publication date
DE202004008566U1 (de) 2005-10-13
WO2005115666A3 (fr) 2006-03-16

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