WO2005095058A1 - Tete de meulage pour dispositif de meulage - Google Patents

Tete de meulage pour dispositif de meulage Download PDF

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Publication number
WO2005095058A1
WO2005095058A1 PCT/DE2005/000590 DE2005000590W WO2005095058A1 WO 2005095058 A1 WO2005095058 A1 WO 2005095058A1 DE 2005000590 W DE2005000590 W DE 2005000590W WO 2005095058 A1 WO2005095058 A1 WO 2005095058A1
Authority
WO
WIPO (PCT)
Prior art keywords
grinding head
grinding
head according
carrier part
stop
Prior art date
Application number
PCT/DE2005/000590
Other languages
German (de)
English (en)
Inventor
Stephan Rieth
Original Assignee
Stephan Rieth
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 Stephan Rieth filed Critical Stephan Rieth
Publication of WO2005095058A1 publication Critical patent/WO2005095058A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/16—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising pleated flaps or strips
    • 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

Definitions

  • the invention relates to a grinding head for a grinding device, with a carrier part and an arrangement arranged on the carrier part and forming a rotationally symmetrical grinding surface.
  • Such grinding heads which are used in manual grinding devices, are known from use, the support part of which is formed by a flat disk and a flat grinding disk arranged on the disk.
  • the invention has for its object to provide a new grinding head of the type mentioned and thereby open up further possibilities for the application of grinding processing methods.
  • the grinding head according to the invention that achieves this object is characterized in that the grinding surface comprises a conical and / or cylindrical surface.
  • Such a grinding head can advantageously be used instead of a conical milling cutter for chamfering hard workpiece edges or instead of a cylindrical milling cutter for machining workpiece edge surfaces, such as those e.g. during flame or plasma cutting, oxide formation and other heat effects arise.
  • a grinding head can be produced with little effort. If worn, the grinding head will be replaced. Possibly. the worn occupancy is only renewed.
  • the grinding head is preferably used in a hand grinding device which has a stop which can be placed against the workpiece and which limits the feed of the grinding head in the direction of its axis of rotation.
  • the stop is preferably adjustable in the direction of the axis of rotation.
  • the respective grinding area on the grinding surface can be shifted by adjusting the stop, thus ensuring even wear of the grinding surface.
  • the stop expediently has a flat contact surface for contacting the workpiece, which preferably extends perpendicular to the axis of rotation of the grinding head.
  • a stop allows the grinding head to be guided precisely so that its axis of rotation is always perpendicular to a workpiece edge to be ground.
  • the contact surface is preferably an annular surface surrounding the grinding head, which in particular enables precise guidance when grinding bevels on concave workpiece edges.
  • half the cone angle i.e. half the angle of the cone tip
  • the carrier part expediently has a conical receiving surface for this covering, the cone angle of which is equal to the cone angle of the grinding surface.
  • the conical grinding surface or the receiving surface is preferably an annular surface with a length of the surface line between 10 and 100 mm, preferably 20 to 40 mm.
  • the occupancy preferably consists of a possibly flexible carrier material, e.g. a plastic in which abrasive grains are embedded.
  • a fleece or fabric e.g. Abrasive cloth, into consideration.
  • the grain size is selected in accordance with the desired removal, with appropriately fine abrasive grains being used for polishing operations.
  • the backing material can form a continuous, one-piece matrix for the embedded abrasive grains
  • the covering is carried out by a large number of lamellae bonded to one another, lamellae overlapping in particular being provided in the circumferential direction of the conical surface.
  • the slats can e.g. be punched out of a band material, such as is used for high-performance grinding belts.
  • the rotating grinding head can be attached to one end of a drive shaft of the grinding device, the conical grinding surface of the drive shaft either facing or facing away, depending on whether a lower or upper edge of a workpiece plate is to be chamfered.
  • Two grinding heads can be combined for simultaneous grinding of an upper and lower edge, with the conical grinding surfaces facing each other.
  • FIG. 1 shows a grinding device with a grinding head according to the invention in a perspective view
  • FIG. 2 shows the grinding device from FIG. 1 in a side view
  • FIG. 3 is a partial view of the device of FIG. 1 that includes the grinding head
  • FIG. 4 shows a perspective view of a grinding head used in the device of FIG. 1
  • FIG. 5 shows a further perspective (partial) view of the grinding head of FIG. 4
  • FIG. 6 shows a carrier part for an abrasive used in the grinding head of FIG. 4 7, a partial view of the grinding device of FIG. 1 with a grinding head according to a second exemplary embodiment for the present invention
  • FIG. 8 a grinding device with a grinding head according to a third exemplary embodiment for the present invention
  • FIG. 9 a carrier part a grinding head according to a fourth exemplary embodiment for the present invention
  • FIG. 10 shows a separately produced grinding head covering which can be used with the grinding head of FIG. 9.
  • a hand grinder has a housing 1 for a motor / gear unit (not shown in the figures), a handle 2 with a switch button 3 and a bracket 4 at the end of the housing facing away from the handle.
  • a shaft 18 connected to the motor / gear unit is rotatable about an axis 6 in a housing extension 5 extending at right angles to the longitudinal axis of the housing. At its end facing away from the housing 1, the shaft 18 is connected to a grinding head 7.
  • the grinding head 7 is surrounded by an annular stop 8 which is coaxial with it and which can be rigidly connected to the housing attachment 5 in a rotationally fixed manner.
  • the housing attachment 5 has a section 9 which includes the stop 8 and which can be screwed onto the rest of the grinding device. By rotating the section 9, the stop 8 can be axially adjusted and locked by a ring nut 16.
  • a ring nut 17 serves to connect the grinding head 7 to the shaft 18.
  • the grinding head 7 comprises a carrier part 10 shown separately in FIG. 6, which is a rotationally symmetrical piece of sheet metal with a central opening 11, which is produced in one operation by stamping and pressing ,
  • the carrier part could also consist of a, possibly fiber-reinforced, plastic material.
  • a conical annular surface 12 of the carrier part 10 which is coaxial with the opening 11 has an abrasive coating 13 which, in the exemplary embodiment in question, consists of a plurality of lamellae 14 which overlap in the circumferential direction of the annular surface.
  • the lamellae 14 are made of a nonwoven material, in which an abrasive is embedded, and are glued to the carrier 10 as well as to each other via the conical ring surface 12. The latter bond extends in the relevant embodiment in the circumferential direction only over part of the length of the slats. When grinding, the lamellas are supported on the support part and among each other.
  • a bevel 20 can be ground on a plate-shaped workpiece 19 with the aid of the grinding device.
  • the contact surface on the occupancy 13 can be shifted, thereby achieving uniform wear of the occupancy.
  • the stop plane of the ring adapter perpendicular to the axis of rotation of the grinding head Schl ⁇ gs enables precise guidance of the grinding head, especially when grinding concave workpiece edges.
  • the described device can also be used for chamfering the lower edge of a plate-shaped workpiece 20a.
  • a grinding head 7a corresponding to the grinding head 7 is connected to a drive shaft 18a rotated by 180 °. Since the direction of rotation of the motor / gear unit cannot be reversed, the lamellae 14a of the grinding head 7a overlap in the opposite direction of rotation compared to the grinding head 7, so that the exposed end edges of the lamellae are not moved against the workpiece.
  • connection of the drive shaft and grinding head can be designed in such a way that the grinding heads provided for grinding an upper edge and those for grinding a lower edge can only be connected to the shaft in the intended working position and not vice versa.
  • FIG. 8 where a grinding device is shown which differs from the grinding device of FIG. 1 only in that instead of a grinding head 7 with a conical grinding surface, a grinding head 7b with a cylindrical grinding surface is used.
  • the grinding head has a cylindrical carrier part made of metal or plastic, which is glued to a hollow cylindrical grinding covering which, like the covering 13 shown in FIG. 4, consists of lamellae which are at least partially glued to one another.
  • the device is particularly suitable for smoothing workpiece edge surfaces 14, such as arise, for example, during flame cutting.
  • a flat contact surface 21b of a stop 8b permits a tilt-stable contact against a plate-shaped workpiece 19b.
  • 9 shows an alternative embodiment of a carrier part 10c of a grinding head.
  • the carrier part 10c which is made of a glass fiber-reinforced plastic material, has a contact surface 12c, in which three annular recesses 23 are formed.
  • a grinding assignment shown separately in FIG. 10 has corresponding depressions 24.
  • the grinding covering is produced as a separate part and can be glued to the carrier part 10c in exchange for a worn covering.
  • the grinding devices described can also be designed as stationary devices. They are particularly suitable for chamfering cutting edges where hardening has made machining difficult due to oxide formation and / or heat effects.
  • a feed of the grinding head perpendicular to the axis of rotation possibly adjustable side stop could be provided, which is either connected to the ring stop or rotatably attached coaxially to the drive shaft for the grinding head.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

La présente invention concerne une tête de meulage destinée à un dispositif de meulage, comprenant une partie de support (10) et une garniture (13) disposée sur la partie de support et présentant une surface de meulage (21) à symétrie de rotation. Selon l'invention, la surface de meulage (21) forme une surface périphérique conique et/ou cylindrique. La garniture est de préférence formée par des lamelles (14), en particulier par une pluralité de lamelles qui se recouvrent dans la direction circonférentielle de la surface conique.
PCT/DE2005/000590 2004-03-31 2005-03-30 Tete de meulage pour dispositif de meulage WO2005095058A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004016565.3 2004-03-31
DE102004016565 2004-03-31
DE102004040901.3 2004-08-19
DE102004040901A DE102004040901A1 (de) 2004-03-31 2004-08-19 Schleifkopf für eine Schleifvorrichtung

Publications (1)

Publication Number Publication Date
WO2005095058A1 true WO2005095058A1 (fr) 2005-10-13

Family

ID=34966998

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/000590 WO2005095058A1 (fr) 2004-03-31 2005-03-30 Tete de meulage pour dispositif de meulage

Country Status (2)

Country Link
DE (1) DE102004040901A1 (fr)
WO (1) WO2005095058A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008131748A2 (fr) * 2007-04-26 2008-11-06 Stephan Rieth Meuleuse portative
DE102016015556B4 (de) 2016-12-21 2022-06-30 Bundesdruckerei Gmbh Verfahren zur Herstellung eines Datenträgers für ein buchförmiges Wert und/oder Sicherheitsdokument

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000021739A1 (it) * 2020-09-15 2022-03-15 Pola & Massa S R L Spazzola rotante migliorata, facilmente sostituibile, in particolare per la pulitura di piastre per circuiti stampati

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2028285A1 (fr) * 1969-01-14 1970-10-09 Deutsch Friedrich
DE3447379A1 (de) * 1984-12-24 1986-07-03 Heinz, Werner, 7440 Nürtingen Vorrichtung zum fuehren einer handschleifmaschine
US4718204A (en) * 1985-07-18 1988-01-12 Eisenblaetter Gerd Lamellar end grinding wheel
EP0566761A1 (fr) * 1992-04-22 1993-10-27 DIPL.-ING. GUENTER WENDT GmbH Disque de meulage à lamelles
DE19511004C1 (de) * 1995-03-25 1996-09-19 Lukas Erzett Schleif Fraes Werkzeug mit einem Schleif- oder Polierbelag

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2028285A1 (fr) * 1969-01-14 1970-10-09 Deutsch Friedrich
DE3447379A1 (de) * 1984-12-24 1986-07-03 Heinz, Werner, 7440 Nürtingen Vorrichtung zum fuehren einer handschleifmaschine
US4718204A (en) * 1985-07-18 1988-01-12 Eisenblaetter Gerd Lamellar end grinding wheel
EP0566761A1 (fr) * 1992-04-22 1993-10-27 DIPL.-ING. GUENTER WENDT GmbH Disque de meulage à lamelles
DE19511004C1 (de) * 1995-03-25 1996-09-19 Lukas Erzett Schleif Fraes Werkzeug mit einem Schleif- oder Polierbelag

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008131748A2 (fr) * 2007-04-26 2008-11-06 Stephan Rieth Meuleuse portative
WO2008131748A3 (fr) * 2007-04-26 2009-01-08 Stephan Rieth Meuleuse portative
DE102016015556B4 (de) 2016-12-21 2022-06-30 Bundesdruckerei Gmbh Verfahren zur Herstellung eines Datenträgers für ein buchförmiges Wert und/oder Sicherheitsdokument

Also Published As

Publication number Publication date
DE102004040901A1 (de) 2005-10-20

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