EP1568440B1 - Werkzeug zur spanabhebenden Bearbeitung - Google Patents

Werkzeug zur spanabhebenden Bearbeitung Download PDF

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Publication number
EP1568440B1
EP1568440B1 EP04030401A EP04030401A EP1568440B1 EP 1568440 B1 EP1568440 B1 EP 1568440B1 EP 04030401 A EP04030401 A EP 04030401A EP 04030401 A EP04030401 A EP 04030401A EP 1568440 B1 EP1568440 B1 EP 1568440B1
Authority
EP
European Patent Office
Prior art keywords
tool according
equal
longitudinal axis
carrier part
central longitudinal
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
EP04030401A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1568440A1 (de
Inventor
Markus Stein
Nicolas Huth
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.)
August Rueggeberg GmbH and Co KG
Original Assignee
August Rueggeberg 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 August Rueggeberg GmbH and Co KG filed Critical August Rueggeberg GmbH and Co KG
Priority to PL04030401T priority Critical patent/PL1568440T3/pl
Publication of EP1568440A1 publication Critical patent/EP1568440A1/de
Application granted granted Critical
Publication of EP1568440B1 publication Critical patent/EP1568440B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/08—Circular back-plates for carrying flexible material
    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/028—Angle tools

Definitions

  • the invention relates to a tool for machining according to the preamble of claim 1.
  • Such known tools are preferably operated with a working part, which is designed as an abrasive on a base, that is highly elastic.
  • the chip removal to be performed with these working parts are very high, which leads to a very rapid heating of the working part.
  • the already designed to eliminate this problem generically supporting members have straight radially outwardly directed or concave in the direction of rotation curved flow channels with an air inlet on the central longitudinal axis side facing that do not lead to a satisfactory cooling.
  • the invention is therefore based on the object, the tool in such a way that a satisfactory cooling of the working part is achieved.
  • the tool shown in the drawing consists in its basic structure of a support member 1 in the form of a support plate and a working part 2.
  • the support member 1 is integrally formed and is usually made of an elastic plastic. It has an annular contact surface 3. Concentric with its central longitudinal axis 4, the support member 1 is provided with a cylindrical passage opening 5, through which a connectable to a drive tool, not shown drive shaft 6 can be pushed.
  • the drive shaft 6 has an external thread 7 at its free end.
  • the actual working part 2 is also formed circular disk-shaped and has a counter-abutment surface 8, which comes into contact with the mounting surface 3 in the attachment of the working part 2 on the support member 1.
  • the working part 2 has approximately the diameter or the circumference of the support part 1.
  • the working part 2 is formed by an abrasive 9 on pad 10, wherein the counter-abutment surface 8 is formed on the side facing away from the abrasive 9 side of the pad 10.
  • a nut 11 is provided with an external thread 7 adapted internal thread 12.
  • the shaft 6 is inserted with its outer thread 7 as shown in Fig.
  • the abutment surface 3 of the support member 1 is formed essentially by ribs 13 and intermediate ribs 14.
  • the inner circumference 15 of the contact surface 3 delimits a serving for receiving the nut 11, from the contact surface 3 recessed, recess 16 into which the opening 5 opens.
  • the ribs 13 are connected to each other by a narrow annular web 17, on which the assembled working part 2 tightly rests over the entire circumference 15, so that there is no connection between the recess 16 and the outer area of the contact surface 3.
  • the supply channels 20 have - as shown in FIG. 1 reveals - transverse to the axis 4, the cross section of a slot 21. They form insofar as the radial to the axis 4 inner initial region of the flow channels 19 and thus also a part of these.
  • two adjacent radii 22, 23 of two adjacent flow channels 19 enclose a pitch angle ⁇ .
  • These radii 22, 23 pass through the central longitudinal axis 4 of the support member 1 and through the lying on the outer periphery 18 center 24 of a flow channel 19.
  • the center 24 of a flow channel 19 is interposed by the lying in this area Rib 14 formed.
  • the pitch angle a With the uniform distribution of the channels 19 over the circumference of the support member 1, this means that between 4 and 36 and preferably between 12 and 36 flow channels 19 are provided.
  • the pitch angle a becomes smaller, that is, smaller. H. the number of flow channels 19 and thus also the number of ribs 13 and possibly the intermediate ribs 14 larger.
  • the lead angle b is a lead angle, because it indicates how far the slot 21, so the initial region of the flow channel 19, relative to the defined by the center 24 on the outer periphery 18 outlet region relative to the Direction of rotation 27 leads.
  • the lead angle b 5 ° ⁇ b ⁇ 45 ° and preferably 5 ° ⁇ b ⁇ 25 °.
  • the flow channels 19 exit at the outer periphery 18 of the support member 1 approximately radially to the axis 4 from. Starting from the formed by the respective slot 21 initial region of the flow channels 19 are these - as also Fig. 1 reveals - curved in the direction of rotation 27 of the support member 1, which results from the previously described lead angle b. In other words, the flow channels 19 are formed concave against the direction of rotation 27.
  • the guided through the center 25 of the slot 21 radius 26 and drawn through the center 25 of the elongated hole 21 central longitudinal axis 28 of the slot 21 include an inclination angle c through which the inclination of the slot 21 and thus the beginning Region of each flow channel 19 is indicated with respect to the radial direction, wherein the slot 21 is seen from the axis 4 to the outer periphery 18 out towards the direction of rotation 27 inclined.
  • the inclination angle c the following applies: 5 ° ⁇ c ⁇ 90 ° and preferably 20 ° ⁇ c ⁇ 60 °.
  • the axial height d of the channels 19 decreases towards the outside.
  • the radially outward in the circumferential direction of the support member 1 increasing width e of the flow channels 19 again at least partially, possibly completely compensated, so that the Cross-section of the flow channels 19 from its initial region 21 to the outer periphery 18 is approximately constant. Furthermore, this ensures that the existing elastic plastic support member 1 in the region of its outer periphery 18 is not too stiff.
  • the shape of the flow channels 19 causes a particularly intensive air intake and a correspondingly intensive air transport radially outwards; the air flows with high turbulence and thus with a high heat transfer coefficient past the counter-abutment surface 8 of the working part 2.
  • the cooling is so intense.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Turning (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Scissors And Nippers (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Feeding Of Articles To Conveyors (AREA)
EP04030401A 2004-02-27 2004-12-22 Werkzeug zur spanabhebenden Bearbeitung Expired - Lifetime EP1568440B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04030401T PL1568440T3 (pl) 2004-02-27 2004-12-22 Narzędzie do obróbki wiórowej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004009443A DE102004009443A1 (de) 2004-02-27 2004-02-27 Werkzeug zur spanabhebenden Bearbeitung
DE102004009443 2004-02-27

Publications (2)

Publication Number Publication Date
EP1568440A1 EP1568440A1 (de) 2005-08-31
EP1568440B1 true EP1568440B1 (de) 2006-11-08

Family

ID=34745293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04030401A Expired - Lifetime EP1568440B1 (de) 2004-02-27 2004-12-22 Werkzeug zur spanabhebenden Bearbeitung

Country Status (7)

Country Link
EP (1) EP1568440B1 (pl)
AT (1) ATE344711T1 (pl)
DE (2) DE102004009443A1 (pl)
DK (1) DK1568440T3 (pl)
ES (1) ES2276216T3 (pl)
PL (1) PL1568440T3 (pl)
PT (1) PT1568440E (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025113935A1 (de) * 2023-11-29 2025-06-05 Robert Bosch Gmbh Stütztellervorrichtung

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1741515B1 (de) 2005-07-05 2007-11-07 August Rüggeberg GmbH & Co. KG Werkzeug
DE102007014766A1 (de) * 2007-03-28 2008-10-02 Robert Bosch Gmbh Exzentertellerschleifer
DE102008015180A1 (de) * 2008-03-20 2009-09-24 Livre Verlags- Und Vertriebs- Gmbh Schleifelement für eine Schleifmaschine, insbesondere für eine Handschleifmaschine
IT1391160B1 (it) * 2008-08-05 2011-11-18 Bdl S R L Disco per elettroutensili per il supporto di materiale abrasivo.
IT1404215B1 (it) * 2011-01-25 2013-11-15 Campana Mirco E Figli S N C Disco per elettroutensili, di supporto di materiale abrasivo
JP2015071217A (ja) * 2013-10-04 2015-04-16 スリーエム イノベイティブ プロパティズ カンパニー 研磨ディスクを支持するためのパッド
DE102014102688A1 (de) * 2014-02-28 2015-09-03 Adolf Würth GmbH & Co. KG Poliervorrichtung mit Wärmeabführeinrichtung
DE202015100548U1 (de) * 2015-02-05 2015-02-26 Industrias Tenazit, S.A. De C.V. Trägerplatte für Lamellenschleifscheiben
CN104690649B (zh) * 2015-02-13 2017-04-26 浙江工业大学 一种人工关节复杂曲面固液二相软性磨粒流湍流加工方法
CN110587499A (zh) * 2019-09-12 2019-12-20 扬中市红洲磨具有限公司 一种新型钹型砂轮

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1049265A (en) * 1976-09-24 1979-02-27 Miksa Marton Pad assembly for vacuum rotary sander
FR2365411A1 (fr) * 1976-09-27 1978-04-21 Robert Jean Ponceuse a disque de papier abrasif monte sur un plateau circulaire tournant
US4287685A (en) * 1978-12-08 1981-09-08 Miksa Marton Pad assembly for vacuum rotary sander
DE9002801U1 (de) * 1990-03-09 1990-06-21 Nied, Hans Rainer, 8760 Miltenberg Schleifteller für Hand-Schleifmaschinen
AU2877292A (en) * 1991-11-02 1993-06-07 Hans J. Fabritius Machining disc arrangement
DE19945060B4 (de) * 1999-09-20 2010-12-02 Robert Bosch Gmbh Schleifhandwerkzeugmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025113935A1 (de) * 2023-11-29 2025-06-05 Robert Bosch Gmbh Stütztellervorrichtung

Also Published As

Publication number Publication date
ATE344711T1 (de) 2006-11-15
PL1568440T3 (pl) 2007-01-31
DE502004001950D1 (de) 2006-12-21
PT1568440E (pt) 2007-02-28
DK1568440T3 (da) 2006-12-27
EP1568440A1 (de) 2005-08-31
ES2276216T3 (es) 2007-06-16
DE102004009443A1 (de) 2005-09-15

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