DE908550C - Chuck - Google Patents
ChuckInfo
- Publication number
- DE908550C DE908550C DEN3035A DEN0003035A DE908550C DE 908550 C DE908550 C DE 908550C DE N3035 A DEN3035 A DE N3035A DE N0003035 A DEN0003035 A DE N0003035A DE 908550 C DE908550 C DE 908550C
- Authority
- DE
- Germany
- Prior art keywords
- tapered rollers
- chuck
- chuck body
- slope curve
- inner cone
- 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.)
- Expired
Links
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims 1
- 238000005553 drilling Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/226—Jaws in the form of conical elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
- B23B31/1253—Jaws movement actuated by an axially movable member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Description
Gegenüber der Unzahl von bekannten Spannfuttern für Bohrmaschinen, Drehbänke usw., die in der Regel entweder durch in axialer Richtung verschiebbare oder in radialer Richtung bewegliche Backen wirken, stellt die Erfindung eine l\Zeüerung dar. Die Erfindung betrifft ein Spannfutter, bei dem die Backen als Kegelrollen ausgebildet sind, die an einem Innenkegel des Futterkörpers anliegen und mit ihrer vorderen Stirnfläche an einer auf dem Futterkörper v erschraubbaren Spannmutter anliegen. Neu ist, daß die Anlagefläche der Spannmutter für die Kegelrollen als entgegengesetzt der Drehrichtung des Futters ansteigende Steigungskurve ausgebildet ist. Durch diese Anordnung werden die Kegelrollen bei der geringsten Rollbewegung axial verschoben. Im gespannten Zustand wird das Rollen, verursacht durch den eventuellen Schlupf des gespannten Werkzeuges, z. B. eines Bohrers,. von der Steigungskurve in eine Axialbewegung umgewandelt, so daß die Rollen, ansteigend mit der Drehkraft am Werkzeug, fester in den umschließenden Innenkegel gepreßt werden und dadurch ein Schlupfen unmöglich machen, d. h. selbsthemmend wirken.Compared to the myriad of known chucks for drilling machines, Lathes, etc., which are usually either displaceable in the axial direction or jaws movable in the radial direction act, the invention provides a solution The invention relates to a chuck in which the jaws as tapered rollers are formed, which bear against an inner cone of the chuck body and with her front face on a clamping nut that can be screwed onto the chuck body issue. What is new is that the contact surface of the clamping nut for the tapered rollers as opposite to the direction of rotation of the chuck formed rising slope curve is. With this arrangement, the tapered rollers become with the slightest rolling movement axially displaced. In the tensioned state, the rolling caused by the eventual Slip of the clamped tool, e.g. B. a drill ,. from the slope curve converted into an axial movement so that the rollers increase with the torque on the tool, are pressed more firmly into the surrounding inner cone and thereby make slippage impossible, d. H. act self-locking.
In der Zeichnung ist ein Ausführungsbeispiel als Rohrfutter dargestellt. Der auf dem Morsekonus sitzende Körper i hat an seiner Unterseite eine konische Bohrung. In dieser liegen die Kegelrollen 2 frei beweglich, jedoch durch den Käfig 3 in i2o° Abstand gehalten. Der Außenmantel4 wird beim Drehen durch den Schraubgang 5 auf und ab bewegt und vollbringt so die Grobeinstellung auf den Durchmesser des Werkstückes. In seinem Boden trägt der Außenmantel die Steigungskurve 6, auf der sich die drei Kegelrollen mit der Stirnseite abstützen. Die Feder 7 drückt die Kegelrollen nach unten, so daß sie sich stets auf der Steigungskurve abstützen. Sobald die Kegelrollen sich drehen, rollen sie auf die Steigungskurve auf und schieben sich um die zurückgelegte Steigungsdifferenz in die konische Bohrung des Körpers i hinein und spannen so automatisch fest. Das Lösen erfolgt durch Drehen in entgegengesetzter Richtung: Bei drei gleichen Kegelrollen ist eine dreigängige Steigungskurve erforderlich. Wird die Steigungskurve eingängig ausgeführt, so müssen die Kegelrollen verschieden lang sein.In the drawing, an embodiment is shown as a pipe liner. The body i sitting on the Morse cone has a conical underside Drilling. In this the tapered rollers 2 are freely movable, but through the cage 3 held at a distance of i2o °. The outer jacket4 is turned through the screw thread 5 moves up and down and thus accomplishes the rough adjustment to the diameter of the Workpiece. In its bottom, the outer jacket carries the slope curve 6 on the the three tapered rollers are supported with the front side. The spring 7 presses the tapered rollers downwards so that they are always supported on the slope curve. Once the tapered rollers turn, they roll up on the slope curve and slide around the covered one Pitch difference into the conical bore of the body i and so clamped automatically fixed. Loosening is done by turning in the opposite direction: if three of the same Tapered rollers, a three-course slope curve is required. Becomes the slope curve designed catchy, the tapered rollers must be of different lengths.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN3035A DE908550C (en) | 1950-10-24 | 1950-10-24 | Chuck |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN3035A DE908550C (en) | 1950-10-24 | 1950-10-24 | Chuck |
Publications (1)
Publication Number | Publication Date |
---|---|
DE908550C true DE908550C (en) | 1954-04-08 |
Family
ID=7337939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN3035A Expired DE908550C (en) | 1950-10-24 | 1950-10-24 | Chuck |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE908550C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009629A1 (en) * | 1978-09-11 | 1980-04-16 | Black & Decker Inc. | Keyless chuck |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT89122B (en) * | 1921-02-28 | 1922-08-10 | Otto Seifert | Self-chuck. |
DE365491C (en) * | 1921-02-22 | 1922-12-15 | Wilh Von Neudeck | Chuck with conical clamping rollers |
DE417144C (en) * | 1924-08-08 | 1925-08-06 | Wilhelm V Neudeck | Chuck with conical clamping rollers |
-
1950
- 1950-10-24 DE DEN3035A patent/DE908550C/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE365491C (en) * | 1921-02-22 | 1922-12-15 | Wilh Von Neudeck | Chuck with conical clamping rollers |
AT89122B (en) * | 1921-02-28 | 1922-08-10 | Otto Seifert | Self-chuck. |
DE417144C (en) * | 1924-08-08 | 1925-08-06 | Wilhelm V Neudeck | Chuck with conical clamping rollers |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009629A1 (en) * | 1978-09-11 | 1980-04-16 | Black & Decker Inc. | Keyless chuck |
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