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DE1062567B - Clamping device for the detachable fastening of grinding tools on your support disk - Google Patents

Clamping device for the detachable fastening of grinding tools on your support disk

Info

Publication number
DE1062567B
DE1062567B DED27401A DED0027401A DE1062567B DE 1062567 B DE1062567 B DE 1062567B DE D27401 A DED27401 A DE D27401A DE D0027401 A DED0027401 A DE D0027401A DE 1062567 B DE1062567 B DE 1062567B
Authority
DE
Germany
Prior art keywords
clamping device
pressure medium
support disk
grinding
detachable fastening
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.)
Pending
Application number
DED27401A
Other languages
German (de)
Inventor
Dr-Ing Hans Krug
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.)
Diskus Werke Frankfurt am Main AG
Original Assignee
Diskus Werke Frankfurt am Main AG
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 Diskus Werke Frankfurt am Main AG filed Critical Diskus Werke Frankfurt am Main AG
Priority to DED27401A priority Critical patent/DE1062567B/en
Publication of DE1062567B publication Critical patent/DE1062567B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/24Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/30Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
    • B23B31/305Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck the gripping means is a deformable sleeve
    • 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
    • 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)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Description

Die Erfindung stellt eine Weiterbildung der Spannvorrichtung nach Patentanmeldung D25437Ib/67a dar.The invention represents a further development of the clamping device according to patent application D25437Ib / 67a represent.

Die Vorrichtung in Form eines aus Büchse, Spanndorn und Gewindespannmittel bestehenden Expansionsgliedes nach dem Hauptpatent ist nach Art einer schnell auswechselbaren Baueinheit als Ganzes rückseitig in die Trag- und Schleifscheibenaufnahme einführbar, dort gegen Drehen gehalten und durch Anziehen des Gewindespannmittels mit der Schleifscheibe verklemmbar. Diese Ausführungsform stellt zwar eine sichere Schnellwechselmöglichkeit dar, jedoch ist ihre Herstellung verhältnismäßig kompliziert und teuer.The device in the form of an expansion member consisting of a sleeve, mandrel and thread clamping means according to the main patent is in the form of a quickly exchangeable unit as a whole on the back can be inserted into the support and grinding wheel holder, held there against rotation and tightened of the thread clamping device can be clamped to the grinding wheel. This embodiment represents although it is a safe quick-change option, its manufacture is relatively complicated and expensive.

Die Erfindung vereinfacht diese Schnellwechselvorrichtungen bei gleichbleibender Spannwirkung wesentlich. Sie kennzeichnet sich durch die Verwendung eines bei Dreh- und Schleifdornen bereits bekannten, durch ein hydraulisches Druckmittel expandierbaren Dorns, dessen im Scheibenbereich liegender Endkopf hohl, mit dem Druckmittel gefüllt und durch Unterdrucksetzen des Druckmittels radial expandierbar ist.The invention simplifies these quick-change devices while maintaining the same clamping effect essential. It is characterized by the use of a tool that is already known for turning and grinding mandrels, by a hydraulic pressure medium expandable mandrel, the one lying in the disk area End head hollow, filled with the pressure medium and radially expandable by pressurizing the pressure medium is.

Das Druckmittel kann — wie bereits gleichfalls an sich bekannt — durch Verschieben eines im Dorninnern angeordneten Kolbens sowie mit Hilfe einer auf der Einführseite der Tragscheibe aus dem Spanndorn austretenden sowie gegen selbsttätiges öffnen sicherbaren Schraube unter Druck gesetzt werden.The pressure medium can - as already also known per se - by moving one inside the mandrel arranged piston and with the help of one on the insertion side of the support disk from the mandrel exiting screw and screw that can be secured against automatic opening are pressurized.

Gemäß einer weiteren Ausführungsform der Erfindung kann bei einer Spannvorrichtung, bei der der Dorn auf der Einführseite der Tragscheibe einen Flansch aufweist, dieser gleichfalls einen mit einem Druckmittel gefüllten Ringraum erhalten, der mit dem Hohlraum des Endkopfes über Längskanäle in Verbindung steht. So kann beim Unterdrucksetzen des Druckmittels der sich mit der Schleifscheibe verklemmende Dorn gleichzeitig auch verdrehsicher in der Tragscheibe festgehalten werden.According to a further embodiment of the invention, in a clamping device in which the The mandrel has a flange on the insertion side of the support disk, this also one with a Pressurized medium-filled annular space obtained, which communicates with the cavity of the end head via longitudinal channels stands. Thus, when the pressure medium is pressurized, the fluid that is jammed with the grinding wheel At the same time, the mandrel can also be held securely in the support disc.

Ein Ausführung'sbeispiel der Erfindung ist in der Zeichnung in einem Schnitt dargestellt.An embodiment of the invention is shown in the drawing in a section.

An der Tragscheibe 1 ist der Einzelschleifkörper 2 durch den in die Haltebohrung 3 eingesteckten Spreizbolzen 4 festgehalten. Dieser greift mit seinem Endkopf 5 in den Befestigungsring 6 des Schleif körpers 2 oder unmittelbar in diesen ein. Sowohl im Endkopf 5 als auch im Anlageflansch 7 ist ein Ringraum 8 bzw. 9 vorgesehen; beide stehen über Längskanäle 10 in Verbindung. Im Zentrum des Spreizbolzens 4 ist ein Kolben 11 mit Abdichtung 12 angeordnet, der durch die Schraube 13 verschiebbar ist.The individual grinding body 2 is on the support disk 1 through the expansion bolt inserted into the holding hole 3 4 held. This engages with its end head 5 in the fastening ring 6 of the grinding body 2 or directly in it. Both in the end head 5 and in the contact flange 7 there is an annular space 8 and 9, respectively intended; both are connected via longitudinal channels 10. In the center of the expansion bolt 4 is a Piston 11 is arranged with a seal 12 which can be displaced by the screw 13.

Nach dem Aufsetzen des Schleif körpers 2 wird die Schraube 13 eingedreht, wobei der Kolben 11 auf die Ölfüllung 14 drückt, so daß sich die Ringräume in Spannvorrichtung zur lösbaren Befestigung von Schleifkörpern an ihrer TragscheibeAfter placing the grinding body 2, the screw 13 is screwed in, the piston 11 on the Oil filling 14 presses so that the annular spaces in the clamping device for releasable fastening of grinding tools on their support disc

Zusatz zur Patentanmeldung D 25437 Ib/67a (Auslegescarift 1 055 994)Addition to patent application D 25437 Ib / 67a (Auslegescarift 1 055 994)

Anmelder:Applicant:

Diskus Werke Frankfurt am MainDiscus works Frankfurt am Main

Aktiengesellschaft, Frankfurt/M. - FechenheimAktiengesellschaft, Frankfurt / M. - Fechenheim

Dr.-Ing. Hans Krug, Offenbach/M., ist als Erfinder genannt wordenDr.-Ing. Hans Krug, Offenbach / M., Has been named as the inventor

Richtung der dünnsten Wand, d. h. der Ringraum 8 in Radialrichtung A und der Ringraum 9 in Axialrichtung B, ausbauchen. Durch das Ausbauchen in Richtung A wird der Schleifkörper 2 an seinem Befestigungsring 6, der zweckmäßigerweise (wie bei 15 strichpunktiert dargestellt) etwas hohl ausgebildet ist, gespannt, während durch das Aufweiten in Richtung B eine Sicherung des Bolzens 4 und damit des Schleifkörpers 2 gegen Verdrehen eintritt. Zum Lösen ist die Schraube 13 wieder herauszudrehen und damit der Öldruck zu reduzieren. Dabei kann die Schraube 13 gegen selbsttätiges Verdrehen zusätzlich gesichert werden.In the direction of the thinnest wall, ie the annular space 8 in the radial direction A and the annular space 9 in the axial direction B, bulge out. By bulging in direction A , the grinding wheel 2 is tensioned on its fastening ring 6, which is expediently somewhat hollow (as shown at 15 in phantom), while the expansion in direction B secures the bolt 4 and thus the grinding wheel 2 against rotation entry. To loosen the screw 13 is to be unscrewed again and thus to reduce the oil pressure. The screw 13 can be additionally secured against turning of its own accord.

Claims (1)

Patentansprüche:Patent claims: 1. Spannvorrichtung zur lösbaren Befestigung von Schleifkörpern, insbesondere stirnseitig schneidender Schleifscheiben an ihrer Tragscheibe, in Form eines aus Büchse, Spanndorn und Gewindespannmittel bestehenden Expansionsgliedes, das nach Art einer schnell, auswechselbaren Baueinheit als Ganzes rückseitig in die Trag- und die Schleifscheibenaufnahme einführbar, dort gegen Drehen gehalten und durch Anziehen des Gewindespannmittels mit der Schleifscheibe verklemmbar ist, nach Patentanmeldung D 25437 I b/67 a, gekennzeichnet durch die Verwendung eines durch ein Druckmittel expandierbaren Dorns (4), dessen im Scheibenbereich liegender Endkopf (5) hohl, mit dem Druckmittel gefüllt und durch Unterdrucksetzen des Druckmittels radial expandierbar ist.1. Clamping device for the detachable fastening of grinding tools, in particular on the face cutting grinding wheels on their support disk, in the form of a sleeve, mandrel and thread clamping device existing expansion member, which is like a quick, replaceable unit can be inserted as a whole on the back into the support and grinding wheel mounts, there against Keep turning and can be clamped to the grinding wheel by tightening the thread clamping device is, according to patent application D 25437 I b / 67 a, characterized by the use of a a pressure medium expandable mandrel (4), whose end head (5) lying in the disk area is hollow, filled with the pressure medium and radially expandable by pressurizing the pressure medium is. 909 579/53909 579/53
DED27401A 1958-02-11 1958-02-11 Clamping device for the detachable fastening of grinding tools on your support disk Pending DE1062567B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED27401A DE1062567B (en) 1958-02-11 1958-02-11 Clamping device for the detachable fastening of grinding tools on your support disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED27401A DE1062567B (en) 1958-02-11 1958-02-11 Clamping device for the detachable fastening of grinding tools on your support disk

Publications (1)

Publication Number Publication Date
DE1062567B true DE1062567B (en) 1959-07-30

Family

ID=7039244

Family Applications (1)

Application Number Title Priority Date Filing Date
DED27401A Pending DE1062567B (en) 1958-02-11 1958-02-11 Clamping device for the detachable fastening of grinding tools on your support disk

Country Status (1)

Country Link
DE (1) DE1062567B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0366105A3 (en) * 1988-10-28 1991-03-13 Michael Weinig Aktiengesellschaft Tool-clamping device, especially for grinding wheels
US5199223A (en) * 1988-01-09 1993-04-06 C. & E. Fein Gmbh & Co. Device for clamping a disc-shaped tool

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE613442C (en) * 1931-09-29 1935-05-20 Ewald Hanus Fastening of grinding bodies adjustable in a carrier parallel to the axis
CH224007A (en) * 1940-04-01 1942-10-31 G M B H Dr Graf Jig.
DE743530C (en) * 1941-02-16 1943-12-28 Hans Hofer Device for the detachable connection of two parts, in particular mandrel or chuck for machine tools
DE745845C (en) * 1939-12-02 1944-05-15 Hans Johann Hofer Jig for machine tools
CH268271A (en) * 1946-05-25 1950-05-15 Georges Blac & Fils Force transmission device.
DE824726C (en) * 1949-12-02 1951-12-13 Ringfeder Gmbh Mandrel
US2602672A (en) * 1947-07-01 1952-07-08 New Britain Machine Co Collet or chuck
US2630039A (en) * 1946-09-03 1953-03-03 William F Klemm Expansion arbor
DE761210C (en) * 1939-12-02 1953-08-31 Hans Johann Hofer Jig for machine tools
FR1115393A (en) * 1954-12-13 1956-04-23 Renault Expandable chuck
DE943872C (en) * 1940-08-11 1956-06-01 Daimler Benz Ag Clamping device, e.g. Clamping mandrel, chuck or shaft coupling, with an unslotted, elastic clamping sleeve

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE613442C (en) * 1931-09-29 1935-05-20 Ewald Hanus Fastening of grinding bodies adjustable in a carrier parallel to the axis
DE745845C (en) * 1939-12-02 1944-05-15 Hans Johann Hofer Jig for machine tools
DE761210C (en) * 1939-12-02 1953-08-31 Hans Johann Hofer Jig for machine tools
CH224007A (en) * 1940-04-01 1942-10-31 G M B H Dr Graf Jig.
DE943872C (en) * 1940-08-11 1956-06-01 Daimler Benz Ag Clamping device, e.g. Clamping mandrel, chuck or shaft coupling, with an unslotted, elastic clamping sleeve
DE743530C (en) * 1941-02-16 1943-12-28 Hans Hofer Device for the detachable connection of two parts, in particular mandrel or chuck for machine tools
CH268271A (en) * 1946-05-25 1950-05-15 Georges Blac & Fils Force transmission device.
US2630039A (en) * 1946-09-03 1953-03-03 William F Klemm Expansion arbor
US2602672A (en) * 1947-07-01 1952-07-08 New Britain Machine Co Collet or chuck
DE824726C (en) * 1949-12-02 1951-12-13 Ringfeder Gmbh Mandrel
FR1115393A (en) * 1954-12-13 1956-04-23 Renault Expandable chuck

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5199223A (en) * 1988-01-09 1993-04-06 C. & E. Fein Gmbh & Co. Device for clamping a disc-shaped tool
EP0366105A3 (en) * 1988-10-28 1991-03-13 Michael Weinig Aktiengesellschaft Tool-clamping device, especially for grinding wheels

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