CH659025A5 - GRINDING MANDREL FOR GRINDING WHEELS. - Google Patents

GRINDING MANDREL FOR GRINDING WHEELS. Download PDF

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Publication number
CH659025A5
CH659025A5 CH148983A CH148983A CH659025A5 CH 659025 A5 CH659025 A5 CH 659025A5 CH 148983 A CH148983 A CH 148983A CH 148983 A CH148983 A CH 148983A CH 659025 A5 CH659025 A5 CH 659025A5
Authority
CH
Switzerland
Prior art keywords
grinding
mandrel
grinding mandrel
elasticity
damping
Prior art date
Application number
CH148983A
Other languages
German (de)
Inventor
Hermann Abbuehl
Original Assignee
Studer Ag Fritz Maschf
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 Studer Ag Fritz Maschf filed Critical Studer Ag Fritz Maschf
Priority to CH148983A priority Critical patent/CH659025A5/en
Priority to DE19843409581 priority patent/DE3409581A1/en
Publication of CH659025A5 publication Critical patent/CH659025A5/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0032Arrangements for preventing or isolating vibrations in parts of the machine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B29/00Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/02Boring bars
    • B23B29/022Boring bars with vibration reducing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00Means for securing grinding wheels on rotary arbors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/16Bushings; Mountings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/16Bushings; Mountings

Landscapes

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

Description

659025 659025

Claims (5)

PATENTANSPRÜCHEPATENT CLAIMS 1. Schleifdorn zur Aufnahme von Schleifscheiben, vorzugsweise zum Schleifen von Bohrungen, dadurch gekennzeichnet, dass derselbe in den Bereichen der von der Belastung herrührenden Verformung aus mehreren Teilen zusammengesetzt ist.1. Grinding mandrel for holding grinding wheels, preferably for grinding bores, characterized in that the same is composed of several parts in the areas of deformation resulting from the load. 2. Schleifdorn nach Patentanspruch 1, dadurch gekennzeichnet, dass die einzelnen Teile des Schleifdomes aus Werkstoffen mit verschiedenem Elastizitätsmodul und verschiedenem Dämpfungsverhalten bestehen.2. Grinding mandrel according to patent claim 1, characterized in that the individual parts of the grinding mandrel consist of materials with different modulus of elasticity and different damping behavior. 3. Schleifdorn nach Patentansprüchen 1 und 2, dadurch gekennzeichnet, dass die einzelnen Teile des Schleifdomes gegeneinander verspannt sind.3. Grinding mandrel according to claims 1 and 2, characterized in that the individual parts of the grinding mandrel are clamped against each other. 4. Schleifdom nach Patentansprüchen 1,2 und 3, dadurch gekennzeichnet, dass die einzelnen Teile des Schleif-dornes gegeneinander in achsialer Richtung verspannt sind.4. grinding mandrel according to patent claims 1,2 and 3, characterized in that the individual parts of the grinding mandrel are clamped against each other in the axial direction. 5. Schleifdom nach Patentansprüchen 1,2, 3 und 4, dadurch gekennzeichnet, dass die einzelnen Teile des Schleif-dornes gegeneinander in radialer Richtung verspannt sind.5. grinding mandrel according to claims 1,2, 3 and 4, characterized in that the individual parts of the grinding mandrel are clamped against each other in the radial direction. Die Erfindung betrifft einen Schleifdom zur Aufnahme von Schleifscheiben, vorzugsweise zum Schleifen von Bohrungen.The invention relates to a grinding mandrel for holding grinding wheels, preferably for grinding bores. Für das Aufspannen von Schleifscheiben, welche zum Schleifen von Bohrungen verwendet werden, sind Schleifdorne seit langer Zeit bekannt. Schleifdome werden zumeist aus Stahllegierungen angefertigt und werden entsprechend der zu bearbeitenden Bohrungsdurchmesser und Bohrungslänge dimensioniert. Dabei ist für die genaue und wirtschaftliche Bearbeitung einer Bohrung neben der Steifigkeit des Schleifdomes auch dessen Dämpfung von massgebendem Einfluss.Grinding mandrels have been known for a long time for clamping grinding wheels which are used for grinding bores. Grinding domes are mostly made of steel alloys and are dimensioned according to the diameter and length of the bore to be machined. In addition to the rigidity of the grinding dome, its damping also has a decisive influence on the precise and economical machining of a bore. Eine hohe Steifigkeit des Schleifdomes ist durch entsprechende Dimensionierung des Verhältnisses Durchmesser zur Länge erreichbar, während eine hohe Dämpfung nur durch entsprechende Materialwahl zu realisieren ist.A high degree of rigidity of the grinding mandrel can be achieved by appropriate dimensioning of the ratio of diameter to length, while high damping can only be achieved by appropriate choice of material. Beide erwähnten Lösungsmöglichkeiten ergeben für die Konstruktion eines Schleifdomes sehr schnell eine Begrenzung, da einerseits das Problem des Schleifens relativ kleiner und langer Bohrungen die Steifigkeit des Schleifdomes heruntersetzt, anderseits hochdämpfende Materialien meist geringe Festigkeiten und niedere Elastizitätsmoduli aufweisen.Both of the possible solutions mentioned very quickly result in a limitation for the construction of a grinding dome, since on the one hand the problem of grinding relatively small and long bores reduces the rigidity of the grinding dome, and on the other hand highly damping materials usually have low strength and low moduli of elasticity. Der Erfindung liegt die Aufgabe zugrunde, eine hohe Steifigkeit eines Schleifdornes bei gleichzeitiger genügender Dämpfung zu erreichen. Der Schleifdorn sollte ausserdem gegenüber den heute bekannten ein günstigeres Verhältnis s Durchmesser zu Länge aufweisen, also entsprechend die Bearbeitung relativ kleiner und langer Bohrungen ermöglichen.The object of the invention is to achieve high rigidity of a grinding mandrel with sufficient damping at the same time. In addition, the grinding mandrel should have a more favorable diameter-to-length ratio than those known today, i.e. make it possible to process relatively small and long bores accordingly. Erfindungsgemäss wird dies dadurch erreicht, dass der Schleifdom in den Bereichen der von der Belastung herrührenden Verformung aus mehreren Teilen zusammengesetzt io ist. Die einzelnen Teile können ausserdem aus Werkstoffen mit verschiedenem Elastizitätsmodul und verschiedenem Dämpfungsverhalten bestehen.According to the invention, this is achieved in that the grinding mandrel is composed of several parts in the areas of deformation resulting from the load. The individual parts can also consist of materials with different moduli of elasticity and different damping behavior. Im Folgenden werden an Hand der beiliegenden Zeichnung zwei Ausführungsbeispiele der Erfindung näher be-15 schrieben.Two exemplary embodiments of the invention are described in more detail below with reference to the attached drawing. Es zeigen:Show it: Fig. 1 Die Schnittdarstellung eines Schleifdomes, welcher aus mehreren Teilen gleichen Elastizitätsmoduls zusammengesetzt ist.Fig. 1 The sectional view of a grinding mandrel, which is composed of several parts of the same modulus of elasticity. 20 Fig. 2 Die Schnittdarstellung eines Schleifdomes welcher aus mehreren Teilen verschiedenem Elastizitätsmoduls zusammengesetzt ist.20 Fig. 2 The sectional view of a grinding mandrel which is composed of several parts with different moduli of elasticity. Der in Fig. 1 dargestellte Schleifdom besitzt an seinem einen Ende den Einspannzylinder 1 sowie das Einspannge-25 winde 2, während am anderen Ende die Schleifscheibe 3 aufgesteckt und mit der Unterlagscheibe 4 sowie der Schraube 5 festgezogen wird. Auf dem zentrischen Teil 6 des Schleifdornes sind zwei Hülsen 7 und 8 aufgepresst, welche zudem in der Eindrehung 9 eingepresst werden.The grinding mandrel shown in FIG. 1 has at one end the clamping cylinder 1 and the clamping thread 2, while at the other end the grinding wheel 3 is attached and tightened with the washer 4 and the screw 5. Two sleeves 7 and 8 are pressed onto the central part 6 of the grinding mandrel, which are also pressed into the groove 9 . 30 Der in Fig. 2 dargestellte Schleifdom besitzt gleichfalls an seinem einen Ende den Einspannzylinder 1 sowie das Einspanngewinde 2, während am anderen Ende die Schleifscheibe 3 aufgesteckt und mit der Unterlagscheibe 4 sowie der Mutter 10 festgezogen wird. Auf den zentrischen Teil 6 des 35 Schleifdomes ist die Hülse 11, welche aus keramischem Material mit hohem Elastizitätsmodul besteht, aufgeschoben. Diese Hülse 11 wird durch die Mutter 12 über das Gewinde 13 achsial vorgespannt.The grinding mandrel shown in FIG. 2 also has the clamping cylinder 1 and the clamping thread 2 at one end, while the grinding wheel 3 is attached to the other end and tightened with the washer 4 and the nut 10. The sleeve 11, which consists of ceramic material with a high modulus of elasticity, is pushed onto the central part 6 of the grinding mandrel. This sleeve 11 is axially biased by the nut 12 via the thread 13 . Der in der Erfindung beschriebene Schleifdom weist ge-40 genüber einem aus Vollmaterial gefertigten Dom eine wesentlich höhere Dämpfung auf. Bei einer Fertigung der Hülsenteile des Schleifdomes aus Material mit hohem Elastizitätsmodul wie zum Beispiel Aluminiumoxyd kann zudem die Steifigkeit erheblich erhöht werden. Eine erhöhte Schleiflei-45 stung und eine erhöhte Oberflächengüte am Werkstück kann daher mit erfindungsgemässen Schleifdornen erreicht werden.The grinding mandrel described in the invention has significantly higher damping compared to a mandrel made from solid material. If the sleeve parts of the grinding mandrel are made of material with a high modulus of elasticity, such as aluminum oxide, the rigidity can also be significantly increased. An increased grinding performance and an increased surface quality on the workpiece can therefore be achieved with grinding mandrels according to the invention. 5050 5555 6060 1 Blatt Zeichnungen1 sheet of drawings
CH148983A 1983-03-17 1983-03-17 GRINDING MANDREL FOR GRINDING WHEELS. CH659025A5 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH148983A CH659025A5 (en) 1983-03-17 1983-03-17 GRINDING MANDREL FOR GRINDING WHEELS.
DE19843409581 DE3409581A1 (en) 1983-03-17 1984-03-15 Tool holder for holding machining tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH148983A CH659025A5 (en) 1983-03-17 1983-03-17 GRINDING MANDREL FOR GRINDING WHEELS.

Publications (1)

Publication Number Publication Date
CH659025A5 true CH659025A5 (en) 1986-12-31

Family

ID=4211660

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148983A CH659025A5 (en) 1983-03-17 1983-03-17 GRINDING MANDREL FOR GRINDING WHEELS.

Country Status (2)

Country Link
CH (1) CH659025A5 (en)
DE (1) DE3409581A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010053016B4 (en) * 2010-12-02 2015-05-21 Herbert Merz Tool holder for holding and holding a tool and tool or tool extension

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741983A1 (en) * 1987-12-11 1989-06-22 Monti Werkzeuge Gmbh ROTATIVELY DRIVABLE TOOL CLAMP
BR8905336A (en) * 1988-10-24 1990-05-22 Gte Valenite Corp EXTENDED TOOL TO OPEN SLOTS OR THREADS
AT395551B (en) * 1989-04-06 1993-01-25 Boehler Gmbh MACHINE COMPONENT WITH HIGH STABILITY AGAINST VIBRATION, IN PARTICULAR TOOL HOLDERS, AND METHOD FOR THE PRODUCTION THEREOF
US5724643A (en) * 1995-06-07 1998-03-03 Allison Engine Company, Inc. Lightweight high stiffness shaft and manufacturing method thereof
US6218026B1 (en) 1995-06-07 2001-04-17 Allison Engine Company Lightweight high stiffness member and manufacturing method thereof
US8579562B2 (en) 2004-01-16 2013-11-12 Franz Haimer Maschinenbau Kg Vibration-damped tool holder
ES2296126T3 (en) * 2004-01-16 2008-04-16 Franz Haimer Maschinenbau Kg TOOL HOLDERS WITH DAMPED SWINGS.
US7815403B2 (en) * 2007-03-14 2010-10-19 Valenite Llc Material removal tool stiffened with spacers arranged along a length
US8926238B1 (en) 2009-09-29 2015-01-06 The Boeing Company Cutting tool sleeve for tool holders
US8821082B1 (en) * 2009-09-29 2014-09-02 The Boeing Company Stiffening sleeve for tool holders

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1977726U (en) * 1967-08-11 1968-01-25 Carl Meyer Steinbearbeitungs M ELASTIC MOUNTING PLATE FOR GRINDING BODIES.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010053016B4 (en) * 2010-12-02 2015-05-21 Herbert Merz Tool holder for holding and holding a tool and tool or tool extension

Also Published As

Publication number Publication date
DE3409581C2 (en) 1993-07-08
DE3409581A1 (en) 1984-09-20

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