CH347405A - Chuck for thin-walled rings - Google Patents

Chuck for thin-walled rings

Info

Publication number
CH347405A
CH347405A CH347405DA CH347405A CH 347405 A CH347405 A CH 347405A CH 347405D A CH347405D A CH 347405DA CH 347405 A CH347405 A CH 347405A
Authority
CH
Switzerland
Prior art keywords
chuck
collet
ring
expanding mandrel
axis
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Hugo Allemann
Original Assignee
Ag Hugo Allemann
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 Ag Hugo Allemann filed Critical Ag Hugo Allemann
Publication of CH347405A publication Critical patent/CH347405A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/40Expansion mandrels
    • B23B31/4006Gripping the work or tool by a split sleeve
    • B23B31/4033Gripping the work or tool by a split sleeve using mechanical transmission through the spindle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/20Longitudinally-split sleeves, e.g. collet chucks
    • B23B31/201Characterized by features relating primarily to remote control of the gripping means
    • B23B31/207Characterized by features relating primarily to remote control of the gripping means using mechanical transmission through the spindle
    • B23B31/2072Axially moving cam, fixed jaws

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Description

  

  Spannfutter für dünnwandige Ringe    Bisher war das für die Bearbeitung notwendige  Einspannen dünnwandiger Ringe schwierig und zeit  raubend, da die Ringe leicht verdrückt und     unrund     wurden oder nicht in die für die Bearbeitung richtige  Ebene zu liegen kamen.  



  Die     Erfindung    bezweckt die Schaffung eines  Spannfutters, mit welchem dünnwandige Ringe in  kurzer Zeit einwandfrei eingespannt werden können.  Sie erfüllt die Aufgabe durch einen Spreizdorn und  eine Spannzange, die so miteinander wirkungsver  bunden sind, dass sie durch Betätigung .eines gemein  samen Spannorgans miteinander festgezogen bzw. ge  löst werden können, ferner durch eine Normalebene  zur     Spannfutterachse    bestimmende Anschlagmittel für  eine Stirnfläche des einzuspannenden Rings.  



  Anhand des in der Zeichnung dargestellten Aus  führungsbeispiels soll die Erfindung näher erklärt  werden.  



       Fig.    1 zeigt einen Längsschnitt durch das Spann  futter und       Fig.    2 einen Querschnitt nach der Linie     A-A    in       Fig.    1.  



  Das Futtergehäuse 1, welches die gesamten Teile  des Spannfutters umschliesst, ist auf eine Hohlspindel  2 aufgeschraubt. Ein Spreizdorn 3 und eine Spann  zange 4 sitzen konzentrisch im Futtergehäuse 1, wo  bei der Spreizdorn 3 am Bund 5 der Spannzange 4  anliegt und diese mit einem     Zentrieransatz    6 in der  Hohlspindel geführt ist. In der zentralen Bohrung  des Spreizdornes 3 ist die Spannschraube 7 axial  verschiebbar angeordnet, die in ein Muttergewinde  am gegenüberliegenden Ende der Hohlspindel ein  greift. Zwischen Spannzange 4 und Spreizdorn 3  befindet sich ein Ringanschlag 8, auf dessen Ansatz  10 sich sechs radial zur Achse des Spannfutters ver  schiebbare Riegel 9 abstützen.

   Ein Gewindering 11  ist auf einem Gewinde am Futtergehäuse 1 verstell-    bar und bestimmt mit einer konischen     Ausdrehung     die radiale Lage der Riegel 9.  



  Spannzange 4, Spreizdorn 3 sowie Ringanschlag 8  sind jeweils für einen Durchmesserbereich der Ringe  dimensioniert und können leicht und schnell ausge  wechselt werden.  



  Die Wirkungsweise des Spannfutters ist wie folgt:  Zum Einspannen wird zunächst der Ring 12 so  zwischen Spannzange 4 und Spreizdorn 3 eingelegt,  dass er mit einer Stirnfläche vollständig am Ring  anschlag 8 anliegt. Dann wird die Spannschraube 7  angezogen. Der     kegelige    Kopf derselben weitet dabei  den Spreizdorn 3 auf und zieht gleichzeitig über den  Bund 5 die Spannzange 4 in den Konus des Ge  häuses 1. Dadurch wird die Spannzange 4 geschlossen  und der Ring 12 zwischen dieser und dem     Spreiz-          dorn    3 unter Anlage an dem Ringanschlag 8 fest  gehalten.  



  Mittels des Gewinderinges 11 werden die Riegel  9 in radialer Richtung nach innen verschoben, so       dass-der    Ringanschlag 8 in seiner für die Bearbeitung   richtigen zentralen Stellung festgezogen wird.



  Chuck for thin-walled rings Until now, the clamping of thin-walled rings required for machining was difficult and time-consuming, as the rings were easily crushed and out of round or did not come to rest in the correct plane for machining.



  The invention aims to create a chuck with which thin-walled rings can be properly clamped in a short time. It fulfills the task by means of an expanding mandrel and a collet, which are functionally connected to each other in such a way that they can be tightened or loosened by actuating a common clamping element, and also by means of a normal plane to the chuck axis determining stop means for an end face of the ring to be clamped .



  The invention will be explained in more detail using the exemplary embodiment shown in the drawing.



       Fig. 1 shows a longitudinal section through the chuck and Fig. 2 shows a cross section along the line A-A in FIG.



  The chuck housing 1, which encloses all parts of the chuck, is screwed onto a hollow spindle 2. An expanding mandrel 3 and a collet 4 sit concentrically in the chuck housing 1, where at the expanding mandrel 3 on the collar 5 of the collet 4 rests and this is guided with a centering shoulder 6 in the hollow spindle. In the central bore of the expanding mandrel 3, the clamping screw 7 is axially displaceable, which engages in a nut thread at the opposite end of the hollow spindle. Between the collet 4 and expanding mandrel 3 there is an annular stop 8, on the shoulder 10 of which six bolts 9 which can be pushed radially to the axis of the chuck are supported.

   A threaded ring 11 can be adjusted on a thread on the chuck housing 1 and determines the radial position of the bolt 9 with a conical recess.



  Collet 4, expanding mandrel 3 and ring stop 8 are each dimensioned for a diameter range of the rings and can be changed out easily and quickly.



  The mode of operation of the chuck is as follows: For clamping, the ring 12 is first inserted between the collet 4 and expanding mandrel 3 so that one end face rests completely on the ring stop 8. Then the clamping screw 7 is tightened. The conical head of the same expands the expanding mandrel 3 and at the same time pulls the collet 4 into the cone of the housing 1 via the collar 5. This closes the collet 4 and the ring 12 between it and the expanding mandrel 3 abuts the Ring stop 8 held firmly.



  By means of the threaded ring 11, the bolts 9 are shifted inward in the radial direction, so that the ring stop 8 is tightened in its central position which is correct for the machining.

 

Claims (1)

PATENTANSPRUCH Spannfutter für dünnwandige Ringe, gekenn zeichnet durch einen Spreizdorn und eine Spann zange, die so miteinander wirkungsverbunden sind, dass sie durch Betätigung eines gemeinsamen Spann organs miteinander festgezogen bzw. gelöst werden können, ferner durch eine Normalebene zur Spann futterachse bestimmende Anschlagmittel für eine Stirnfläche des einzuspannenden Rings. UNTERANSPRt7CHE 1. Spannfutter nach Patentanspruch, dadurch ge kennzeichnet, dass der Spreizdorn mit seinem Schaft konzentrisch in einer zentralen Bohrung der Spann- zange liegt, und mit einer Ringschulter von vorn gegen eine Absetzung der Spannzange anliegt. 2. PATENT CLAIM Chucks for thin-walled rings, characterized by an expanding mandrel and a collet, which are functionally connected to each other in such a way that they can be tightened or loosened by actuating a common clamping organ, and also by means of a normal plane to the chuck axis defining attachment means for an end face of the ring to be clamped. SUB-CLAIM 1. Chuck according to patent claim, characterized in that the expanding mandrel lies concentrically with its shaft in a central bore of the collet and rests with an annular shoulder from the front against a step in the collet. 2. Spannfutter nach Patentanspruch, dadurch ge kennzeichnet, dass zur Erreichung einer senkrechten Lage der Ringstirnflächenebene zur Achse des Spann futters zwischen Spreizdorn und Spannzange ein konzentrischer Anschlagring angeordnet ist. 3. Spannfutter nach Patentanspruch und Unter anspruch 2, gekennzeichnet durch eine Anzahl radial zur Achse des Spannfutters verschiebbarer Riegel zum Festhalten des Anschlagrings in zentrierter Lage zu den Spannorganen. 4. Chuck according to patent claim, characterized in that a concentric stop ring is arranged between the expanding mandrel and the collet in order to achieve a vertical position of the ring face plane to the axis of the chuck. 3. Chuck according to claim and sub-claim 2, characterized by a number of bolts which can be displaced radially to the axis of the chuck to hold the stop ring in a centered position relative to the clamping elements. 4th Spannfutter nach Patentanspruch und Unter ansprüchen 2 und 3, gekennzeichnet durch einen auf dem Spannfuttergehäuse verstellbaren Gewinde ring (11), der mit einer konischen Ausdrehung von aussen gegen die Riegel (9) anliegt. Chuck according to patent claim and dependent claims 2 and 3, characterized by a threaded ring (11) which is adjustable on the chuck housing and which rests with a conical recess from the outside against the bolt (9).
CH347405D 1956-11-20 1956-11-20 Chuck for thin-walled rings CH347405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH347405T 1956-11-20

Publications (1)

Publication Number Publication Date
CH347405A true CH347405A (en) 1960-06-30

Family

ID=4507990

Family Applications (1)

Application Number Title Priority Date Filing Date
CH347405D CH347405A (en) 1956-11-20 1956-11-20 Chuck for thin-walled rings

Country Status (1)

Country Link
CH (1) CH347405A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1101554A1 (en) * 1999-06-12 2001-05-23 FORKARDT Deutschland GmbH Power chuck for machine tools
DE102009011335A1 (en) * 2009-03-05 2010-09-09 Sterman Technische Systeme Gmbh Workpiece clamping device for use in automobile industry, has chuck device for clamping of workpiece and comprising two chucks, and chuck operating device comprising ring pistons and two block parts for operating respective chucks
CN102039546A (en) * 2009-10-15 2011-05-04 近藤机械制作所 Inner diameter chuck device of cylindrical grinding machine and collet chuck component

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1101554A1 (en) * 1999-06-12 2001-05-23 FORKARDT Deutschland GmbH Power chuck for machine tools
DE102009011335A1 (en) * 2009-03-05 2010-09-09 Sterman Technische Systeme Gmbh Workpiece clamping device for use in automobile industry, has chuck device for clamping of workpiece and comprising two chucks, and chuck operating device comprising ring pistons and two block parts for operating respective chucks
DE102009011335B4 (en) * 2009-03-05 2011-09-29 Sterman Technische Systeme Gmbh Device for clamping a workpiece having an annular wall and method for operating such a device
DE102009011335C5 (en) * 2009-03-05 2014-05-22 Sterman Technische Systeme Gmbh Device for clamping a workpiece having an annular wall and method for operating such a device
CN102039546A (en) * 2009-10-15 2011-05-04 近藤机械制作所 Inner diameter chuck device of cylindrical grinding machine and collet chuck component
CN102039546B (en) * 2009-10-15 2015-01-28 近藤机械制作所 Inner diameter chuck device of cylindrical grinding machine and collet chuck component

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