AT384976B

AT384976B - DEVICE FOR HOLDING A DRILLING DEVICE

Info

Publication number: AT384976B
Application number: AT338585A
Authority: AT
Original assignee: Pfohl Hans; Ruml Walter
Priority date: 1985-11-20
Filing date: 1985-11-20
Publication date: 1988-02-10
Also published as: ATA338585A

Abstract

Device for holding a drilling implement for drilling holes in a workpiece, having a base which carries axially parallel guides of the holder of the implement and is to be mounted in a sliding manner on the top side of the workpiece to be machined. This base, supporting pivotable guides, has a central recess assigned to the drilling axis and, by means of clamping jaws which can be pressed sideways against the flanks of the workpiece to be machined, can be fixed to this workpiece. <IMAGE>

Description

  

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    2, 849, 900-bereitsFührungshülsen --34-- von den Federn --17'-- gegen   die   End-Anschläge --34'-- der   Führungsstan-   gen --17-- gedrückt   und besitzt zur Aufnahme des   Bohrgerätes-l-eine   zentrale Ausnehmung   - -35--,   in der das   Gerät-l-ruht   und mittels einer Klemmschraube --36-- fixierbar ist. 



   Zur Fixierung der Vorrichtung an den Flanken des   Werkstückes --3-- könnte   auch an Stelle einzelner   Spannbacken-Klötze --8-- je   eine seitlich an das   Werkstück --3-- anlegbare  
Leiste verwendet werden ; diese müsste dann-in ihrer Längsrichtung hintereinander-mehrere vorgefertigte Sackbohrungen zum wahlweisen Einsetzen der Spannbacken-Spindeln --7-- aufweisen, um bei der Befestigung der Vorrichtung an Wangen verschiedener Breite und Schräge eine Anpas- sung durchführen zu können. 



   Bei der Bearbeitung gekrümmter Wangen muss die einzelne Spannbacke --6-- auf der Innenseite   und das Spannbackenpaar --5, 5'-- auf   der Aussenseite des Krümmlings angesetzt werden. 



   Kann die Basis bei gewundenen   Krümmungen   nicht satt auf dem Werkstück aufliegen, muss der Schnittpunkt der Bohrachse --15-- mit der Ebene --4'-- der Basisunterseite mittels eines in das   Gerät-l-bedarfsweise   einsetzbaren Zentrierdornes auf der Werkstückoberseite markiert werden. 



   Für die Widerlager --10-- der Spannbacken können in der Basis --4-- mehrere wahlweise benutzbare Befestigungslöcher vorgesehen sein, um die Spannbacken nach Bedarf enger oder weiter voneinander entfernt ansetzen zu können. 



    PATENTANSPRÜCHE :    
1. Vorrichtung zur Halterung eines Bohrgerätes für das Bohren von Löchern in einem Werkstück, mit einer achsparallele Führungen der Halterung des Gerätes tragenden, auf die Oberseite des zu bearbeitenden Werkstückes gleitend aufzusetzenden Basis, wobei diese schwenkbare Führungen lagernde Basis eine der Bohrachse zugeordnete zentrale Ausnehmung aufweist und mittels seitwärts an die Flanken des zu bearbeitenden Werkstückes anpressbarer Spannbacken an diesem Werkstück fixierbar ist, dadurch gekennzeichnet, dass in die zentrale Ausnehmung (12) der Basis (4) ein den Verlauf der Bohrachse (15) anzeigender transparenter Einsatzteil (13) einsetzbar ist.



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    2, 849, 900-already guide sleeves --34-- pressed by the springs --17 '- against the end stops --34' - of the guide rods --17-- and has -l for receiving the drilling device -a central recess - -35--, in which the device-l-rests and can be fixed with a clamping screw --36--.



   In order to fix the device to the flanks of the workpiece --3--, instead of individual clamping block blocks --8-- one could be attached to the side of the workpiece --3--
Ledge used; This would then have to have several prefabricated blind bores in the longitudinal direction one after the other for the optional insertion of the clamping jaw spindles in order to be able to carry out an adaptation when the device is attached to cheeks of different widths and slopes.



   When machining curved cheeks, the individual clamping jaw --6-- must be placed on the inside and the pair of clamping jaws --5, 5 '- on the outside of the curved part.



   If the base cannot lie snugly on the workpiece in the case of sinuous curvatures, the intersection of the drilling axis --15-- with the level --4 '- of the base underside must be marked on the top of the workpiece by means of a centering mandrel that can be inserted in the device .



   For the abutments --10-- of the clamping jaws, several optionally usable fastening holes can be provided in the base --4--, so that the clamping jaws can be positioned closer or further apart as required.



    PATENT CLAIMS:
1.Device for holding a drilling device for drilling holes in a workpiece, with an axially parallel guides of the holder of the device bearing base to be slidably placed on the upper side of the workpiece to be machined, this pivotable guide bearing base having a central recess assigned to the drilling axis and can be fixed to this workpiece by means of clamping jaws which can be pressed sideways onto the flanks of the workpiece to be machined, characterized in that a transparent insert part (13) indicating the course of the drilling axis (15) can be inserted into the central recess (12) of the base (4) .

Claims

2. Device according to claim 1, characterized in that the insert part (13) has a central crosshair (14) on one side and can be inserted with this side against the workpiece (3) into the central recess (12) of the base (4).

3. Device according to claim 1 or 2, characterized in that the insert part (13) two peripherally diametrically opposed downward stops, z. B. bolts (16), which can be applied to center the base (4) on the workpiece (3) by rotating the insert part (13) on the two flanks of the workpiece (3).

4. The device according to claim 1, characterized in that the pivotably mounted guide rods (17) with cylindrically curved end faces (19) on conformally curved bearing surfaces (19 ') of the base, the common axis of these cylindrical surfaces (19, 19') crossing the drilling axis (15) in the plane (4 ') of the underside of the base (4) through the center of the recess (12) of the base (4).

5. The device according to claim 1, in which with the movable along the guide rods, the holder of the device forming a spar adjustable for setting the drilling depth and fixable by means of a clamp, formed by a stop rod, is connected to the counter stop for storage and fixation stationary part belonging to the guide rod, e.g.

B. one of the clamps is assigned, characterized by a along the stop rod (20) adjustable and by means of a clamp (25) fixable, as a drilling jig in the area below the base (4) extending rod (26) in its holder (24) rotatable, axially adjustable and fixable by means of a clamp (27) and cranked in the area below the base (4), and its lower area (26 ') by rotating the rod (26) in its holder (24) to the Flank of the workpiece (3) can be applied to indicate the course of the bore (2) on the outside. <Desc / Clms Page number 4>

6. Device according to one of claims 1 to 5, characterized by a on the vertically movable holder (18) of the device (1), a horizontal position of this holder (18) and thus the vertical position of the guides (17) and the drilling axis (15) indicating spirit level, preferably circular bubble (29).

7. The device according to claim 6, characterized in that a on the base (4) attached gauge to maintain a predetermined distance between adjacent, one after the other bores (2) is provided, or the like from a pivotable on a bearing block (30) the base (4) is mounted and extends in the longitudinal direction of the workpiece (3) rod (31), on which a distance from this bearing block (30) is adjustable and can be fixed by means of a clamp (33) into a previously manufactured one Adjacent hole (2) of the workpiece (3) insertable bolt (32), pin, mandrel or the like is attached.