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EP0224770A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Quick-change clamping device

Assignee: Hertel AG Werkzeuge and Hartstoffe
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Filing: 1986-11-13
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Granted: —
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Expires: 2006-11-13
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Abstract

Abstract Translated from German Bei einer Schnellwechsel-Einspannvorrichtung insbeson­dere für Bohrmaschinen mit einer Maschinenspindel (l) und einem drehfest auf diese aufsetzbaren Werkzeugkopf (2) sind Keilflächen (9) am Umfang eines spreizbaren Ringelements (l4) angeordnet, welches in ungespreiztem Zustand in einer das Spindelende (3) umgebenden Ringnut (l5) eingetaucht einliegt. In der Spindel (l) ist ein Steuerschieber (l6) durch von außen eingeleitete Verstellbewegung in Axialrichtung verschiebbar gela­gert. Mehrere Spreizelemente (l8) liegen in das Spindelende (3) radial durchsetzenden und in die Ringnut (l5) ausmündenden Öffnungen (l7) ein, die durch Axialverschiebung des Steuerschiebers (l6) radial nach außen gegen die Innenringwand (l9) des Ringelements (l4) gedrängt werden und dabei dessen innere Keilflä­chen (9) in Keilanzugsstellung gegen eine entsprechen­de, konische Innenringflanke (24) drängen. In the case of a quick-change clamping device, in particular for drilling machines, with a machine spindle (l) and a tool head (2) that can be non-rotatably placed thereon, wedge surfaces (9) are arranged on the circumference of an expandable ring element (l4) surrounding ring groove (l5) is immersed. A control slide (l6) is mounted in the spindle (l) so as to be displaceable in the axial direction by an adjustment movement initiated from the outside. Several spreading elements (l8) lie in the spindle end (3), which penetrate radially and open into the annular groove (l5) and which open out openings (l7), which are displaced radially outwards against the inner ring wall (l9) of the ring element (l4) due to axial displacement of the control slide. be pushed and thereby press the inner wedge surfaces (9) in the wedge tightening position against a corresponding, conical inner ring flank (24).

Inventors

  • 👤 Franz Glaser

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-27 09:08
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/06; B23B31/10; B23B31/107; B23B31/1071; B23B31/1072; F; F16; F16B; F16B2200/00; F16B2200/69; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T403/00; Y10T403/59; Y10T403/598; Y10T403/599; Y10T408/00; Y10T408/94; Y10T408/95; Y10T408/953; Y10T409/00; Y10T409/30; Y10T409/309352; Y10T409/309408

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