EP2635415A1 - Outil de meulage et/ou de coupe pour une machine-outil à entraînement oscillant - Google Patents

Outil de meulage et/ou de coupe pour une machine-outil à entraînement oscillant

Info

Publication number
EP2635415A1
EP2635415A1 EP11764546.5A EP11764546A EP2635415A1 EP 2635415 A1 EP2635415 A1 EP 2635415A1 EP 11764546 A EP11764546 A EP 11764546A EP 2635415 A1 EP2635415 A1 EP 2635415A1
Authority
EP
European Patent Office
Prior art keywords
grinding
hollow body
cutting tool
tool according
tool
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.)
Withdrawn
Application number
EP11764546.5A
Other languages
German (de)
English (en)
Inventor
Milan Bozic
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2635415A1 publication Critical patent/EP2635415A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/12—Cut-off wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/44—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cup or like cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/45—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member the movement of which is not covered by any preceding group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations

Definitions

  • the invention relates to a grinding and / or cutting tool, in particular an abrasive tool for a machine tool with oscillation drive according to the preamble of claim 1.
  • EP 0 881 023 A2 describes a cutting and grinding tool for a machine tool which produces an oscillating pivoting movement of the cutting and grinding tool.
  • the cutting and grinding tool has on a Abtragungsgroundianu a cutting edge, which is provided with teeth.
  • the Abtragungsground réelle forms with a holder part a common component which is plate-shaped.
  • EP 0 487 948 B1 discloses a grinding and / or cutting tool for a hand-held power tool with a rotary oscillation drive which is provided with an abrading base body with a U-shaped cross-section whose end faces form cutting edges.
  • the U-shaped cross section of the ablation body is at a radial distance from the axis of rotation of the tool shaft, wherein the cutting edge is offset parallel to the tool axis.
  • the U-shaped Abtragungsground stresses performs in the rotary oscillation movement of a Operanikbewe- supply, so that only circular grooves with a fixed radius and the U-shape corresponding cross-section can be generated with this grinding and / or cutting tool. Disclosure of the invention
  • the invention is based on the object with simple constructive measures a grinding and / or cutting tool, in particular Abrasionswerkmaschine for a machine tool in such a way that grooves can be made with any course and in an efficient manner.
  • the grinding and / or cutting tool according to the invention in particular abrasion tool can be used in machine tools, especially hand-held machine tools with oscillatory drive, preferably a rotary oscillation drive to introduce into the surface of a workpiece a groove or a recess with a defined cross-sectional geometry.
  • oscillatory drive preferably a rotary oscillation drive to introduce into the surface of a workpiece a groove or a recess with a defined cross-sectional geometry.
  • the course of the groove is basically not dependent on the cross-sectional geometry of the grinding and / or cutting tool. Rather, it is possible to generate any Nutenverstructure.
  • the grinding and / or cutting tool has a holder part over which the
  • the ablation body is designed as a hollow body, the cavity of which forms a particle discharge space for the particles produced during workpiece machining - chips and grinding dust.
  • a hollow body is understood to mean, in particular, a three-dimensional body which at least partially encloses or at least partially delimits an essentially inner cavity in at least two spatial directions.
  • an oscillating movement along an extension of the hollow body creates a movement body similar to an envelope, wherein the hollow body forms at least part of a lateral surface of the moving body.
  • the cavity is designed with respect to the oscillation movement of the tool shaft such that a longitudinal axis of the cavity lies in a plane of the oscillation movement which the grinding and / or cutting tool carries out.
  • the grinding and / or cutting side of the cavity has a linear, and executes reciprocating motion, which is preferably a translational movement, but in principle may also be a circular motion, wherein the machining side, which is in contact with the workpiece on a circular arc whose center is formed by the axis of the tool shaft.
  • reciprocating motion which is preferably a translational movement, but in principle may also be a circular motion, wherein the machining side, which is in contact with the workpiece on a circular arc whose center is formed by the axis of the tool shaft.
  • Surface structure extends at least on the machining outer side of the hollow body, which is in contact with the workpiece. Conveniently, the entire hollow body outside is provided with such a surface structure. It is both an application of abrasive particles on the surface of the hollow body into consideration, for example, a grain material such as cemented carbide, diamond, stone, plastic, etc., which is applied as a coating, as well as a hollow body with integrally formed with the wall grinding and / or cutting bodies, which expediently project radially beyond the outside of the hollow body.
  • a grain material such as cemented carbide, diamond, stone, plastic, etc.
  • the end faces of the hollow body expediently form cutting surfaces, which in each case come into contact with the workpiece during the forward and backward movement of the hollow body and remove material.
  • the end faces are formed as cutting edges.
  • they can be provided with abrasive particles, which are either formed separately and applied to the end faces or are made in one piece with the end faces.
  • the hollow body is expediently designed to be open on at least one end face, but preferably on both opposite end faces, so that removed particles, ie chips and / or grinding dust, project across the end faces. can be performed.
  • removed particles ie chips and / or grinding dust
  • ablated particles can pass through an end face in the interior and be discharged via the same end face or the opposite end side again from the interior.
  • Wall of the hollow body from the processing side into the interior into consideration.
  • the hollow body is preferably tubular, with different cross-sectional shapes come into consideration.
  • the hollow body may have a circular cross-section.
  • different rectangular cross-sectional geometries, polygonal geometries, combinations of curved sections with rectilinear sections or the like are possible.
  • W- and / or M-shaped cross-sectional geometries, P-shaped, D-shaped, I-shaped, T-shaped or V-shaped geometries as a hollow body with a cavity are possible.
  • the hollow body is preferably designed bent and extends over a defined circle segment.
  • the arc along which the hollow body extends has, in particular, a circular center which coincides with the axis of rotation of the tool shaft.
  • the hollow body is fastened to the holder part, whereby both one-piece embodiments of the hollow body and holder part come into consideration, as well as embodiments as separate components in which the hollow body and holder part are connected to one another via fastening measures, for example by screwing or riveting.
  • the hollow body is advantageously formed closed over its entire axial length, with possibly smaller openings in the wall are possible, which allow penetration of grinding dust and / or chips radially from outside to inside in the inner cavity.
  • the hollow body is not formed closed, but executed over its axial length open, for example in the form of a longitudinally extending groove.
  • Such embodiments offer advantages in terms of Production of the hollow body, since only the base material must be bent to a hollow body.
  • a cavity is provided within the hollow body.
  • the lateral walls, which delimit the cavity extend according to a first embodiment variant over an angular range greater than 180 °.
  • the lateral walls can also extend over a Wnkel Suite smaller than 180 ° or be formed approximately semicircular; the hollow body forms a curved, half-open blade.
  • the half-open blade can be bent relative to the holder part under a Wnkel, wherein the angle is between 0 ° and 90 °, for example at 45 °. This is to improve the accessibility during removal.
  • a bow-like cross-sectional geometry is considered, for example a polygonal polygonal geometry, in which the blade is composed of individual polygons in cross-section.
  • a radial opening in the hollow body which extends in the radial direction relative to the longitudinal axis of the hollow body and axially divides the hollow body into two sections.
  • a plurality of radial openings are introduced into the hollow body, which divide the hollow body into a correspondingly larger number of axial sections.
  • the radial opening is, for example, slit-shaped and may extend over part of the circumference of the hollow body, in particular at least over half of the hollow body.
  • the radial opening has the advantage that the hollow body, if it is made from a flat piece of sheet metal, can be bent more easily.
  • the chip removal is improved.
  • the removal can be improved by additional cutting and / or contact surfaces in the region of the radial opening.
  • the shovel-shaped hollow body can be completely coated with abrasive particles in the region of the ablation side.
  • FIG. 1 is a perspective view of a grinding and / or cutting tool for a machine tool, with a designed as a hollow ablation body, which is arranged on a holder part, which is connected to a fastening part for attachment to a tool shaft,
  • FIG. 4 is a side view of a grinding and / or cutting tool in an alternative embodiment
  • FIG. 6 shows a grinding and / or cutting tool in a further embodiment in side view
  • Fig. 8 the grinding and / or cutting tool of Fig. 6 and 7 in a perspective view.
  • a cutting and / or grinding tool 1 for a machine tool, in particular a hand tool with a rotary oscillation drive is shown.
  • the cutting and / or grinding tool 1 consists of a holder part 2 and a hollow body 3 arranged thereon, which forms a AbtragungsgroundMech for workpiece machining.
  • Cutting and / or grinding tool 1 is connected to a fastening and / or adapter part 4, in particular releasably connected, wherein via the fastening and / or adapter part 4 a connection to a driven Maschinen- generating shaft 5 of the machine tool is possible.
  • the driven tool shaft 5 has a longitudinal or rotational axis 6 and is driven to rotate about the longitudinal or rotational axis 6 in the direction of arrow 7. Due to the rotary oscillation drive is a reciprocating motion along a circular arc.
  • the hollow body 3 forms the removal component of the workpiece causing component and is in operation during the machining in contact with the workpiece surface.
  • the hollow body 3 is tubular and has a round cross-section, which, however, due to its production, as shown in FIGS. 1 and 2, has an open gap extending over the axial length.
  • the open gap is due to the fact that in the manufacture of the cutting and / or grinding tool 1, which consists of metal, is bent from a straight piece of metal.
  • the holder part 2 and the hollow body 3 are made in one piece, in principle, two-part configurations come into consideration.
  • the tubular hollow body 3 is formed bent and extends over a defined circle segment.
  • the longitudinal axis 6 facing away from the outside of the hollow body 3 forms the machining side, is removed on the material.
  • Both end faces of the hollow body are open, wherein the end faces 10 in the region of the wall of the hollow body also contribute to the removal of the material. Due to the frontally open design of the hollow body chips and / or grinding dust can get into the hollow body interior and also be removed again from this.
  • Both the machining side 9 on the outer surface of the hollow body 3 and the two opposite end faces 10 are used for workpiece machining and can be coated with a grain material, which consists for example of hard metal, diamond, stone or plastic or the like.
  • the coating of the lateral surface of the hollow body 3 extends at least along the machining side 9, which is diametrically opposed to the longitudinal axis 6 of the tool shaft 5. However, it may be convenient to the entire outside lying lateral surface of the hollow body 3 to be provided with such a coating.
  • the tubular hollow body 3 has a circular cross-section with the radius r, which is significantly smaller than the radius R between the center or the longitudinal axis 6 and the radially outer machining side 9 on the hollow body 3 (FIG 3).
  • the hollow body 3 has no circular cross-section, but a semi-circular cross-section and forms together with the integrally molded holder part 2 a P-shape.
  • the radially outer machining side 9 is not arcuate designed with a defined radius, but is composed of individual, straight sections in the manner of a polygon.
  • the longitudinal axis 8 of the cavity 3 lies in the plane in which the cutting and / or grinding tool 1 moves during workpiece machining due to the rotational movement of the tool shaft 5.
  • FIGS. 6 to 8 show a further exemplary embodiment of a cutting and / or grinding tool 1.
  • the hollow body 3 is formed as a curved, half-open blade whose cross-section extends approximately over 180 °.
  • the blade is at least partially circular in cross-section.
  • the offset angle ⁇ is approximately 45 ° in the embodiment.
  • a radial gap is introduced into the scoop-shaped hollow body 3, which extends radially over the major part of the circumference of the hollow body relative to the longitudinal axis of the hollow body and divides it axially into two subsections.
  • the radial gap 1 1 is located over the axial length of the hollow body 3 seen in the middle of the hollow body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

L'invention concerne un outil de meulage et/ou de coupe pour une machine-outil à entraînement oscillant, ledit outil comportant un élément de retenue destiné à être relié à un arbre d'outil et un corps de base d'enlèvement de matière destiné à l'usinage de pièces et réalisé sous la forme d'un corps creux, un espace creux du corps creux formant un espace d'évacuation de particules. Un axe longitudinal de l'espace creux est situé dans un plan d'un mouvement oscillant de l'outil de meulage et/ou de coupe.
EP11764546.5A 2010-11-05 2011-10-04 Outil de meulage et/ou de coupe pour une machine-outil à entraînement oscillant Withdrawn EP2635415A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010043452A DE102010043452A1 (de) 2010-11-05 2010-11-05 Schleif- bzw. Schneidwerkzeug für eine Werkzeugmaschine mit Oszillationsantrieb
PCT/EP2011/067286 WO2012059287A1 (fr) 2010-11-05 2011-10-04 Outil de meulage et/ou de coupe pour une machine-outil à entraînement oscillant

Publications (1)

Publication Number Publication Date
EP2635415A1 true EP2635415A1 (fr) 2013-09-11

Family

ID=44741321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11764546.5A Withdrawn EP2635415A1 (fr) 2010-11-05 2011-10-04 Outil de meulage et/ou de coupe pour une machine-outil à entraînement oscillant

Country Status (3)

Country Link
EP (1) EP2635415A1 (fr)
DE (1) DE102010043452A1 (fr)
WO (1) WO2012059287A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011075692A1 (de) * 2011-05-12 2012-11-15 Robert Bosch Gmbh Schleif- bzw. Schneidwerkzeug für eine Werkzeugmaschine mit Oszillationsantrieb
DE102013112632A1 (de) * 2013-11-15 2015-05-21 C. & E. Fein Gmbh Sägeblatt für eine oszillierend angetriebene Säge
DE102013112888A1 (de) * 2013-11-21 2015-05-21 C. & E. Fein Gmbh Werkzeugmaschine zum Schneiden von plattenförmigem Material
CN107584687B (zh) * 2017-10-31 2024-03-26 乐山新天源太阳能科技有限公司 环形金刚线开方机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135573A1 (de) 1990-11-28 1992-06-04 Fein C & E Verfahren und vorrichtung zum einbringen von oberflaechenkanaelen in plattenmaterial aus weichem werkstoff und verwendung einer vorrichtung
US5643063A (en) * 1996-08-01 1997-07-01 Uzumcu; Albert I. Clamping mechanism for a powered sander
DE29825263U1 (de) 1997-05-28 2007-10-25 Maroc Gmbh Schneidwerkzeug
DE10308600A1 (de) * 2003-02-27 2004-09-09 C. & E. Fein Gmbh Schleifwerkzeug für ein Schleifgerät mit Drehoszillationsantrieb
DE102004050635A1 (de) * 2004-10-18 2006-04-20 C. & E. Fein Gmbh Hartschaum-Trägerplatte zur Aufnahme der Heizrohre einer Fußbodenheizung sowie Werkzeug zum Einarbeiten des Verlegekanals und Verfahren zum Verlegen von Heizrohren in der Hartschaum-Trägerplatte
DE202009008427U1 (de) * 2009-06-15 2010-11-04 C. & E. Fein Gmbh Schneidwerkzeug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012059287A1 *

Also Published As

Publication number Publication date
DE102010043452A1 (de) 2012-05-10
WO2012059287A1 (fr) 2012-05-10

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