DE1617542U - FASTENING OF DRILL CHUCKS TO THE MACHINE SPINDLE. - Google Patents

Description

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In the generally known and used fastening of drill chucks and other clamping tools on the machine spindle, this has a conical shape Tap recording, on. that the chuck is attached with a precisely fitting inner hole. This simple and precise attachment works very well everywhere with normal working methods. at Drilling work at high cutting speeds or when working with low and high speeds Resistance to work and friction, as found in taps, Reamers and similar tools occur, furthermore when they are used longitudinally * direction the drill chuck can unintentionally come loose from the machine spindle. To avoid this you have attached keyways and wedges, cross pins, pointed set screws or locking threads. These tools all have several disadvantages. They have a detrimental effect on centric running, lead to damage to the mounting pins, especially with frequent changes, or they don't offer. all directions of work, the desired one Safety. ',.

The design according to the invention represents an additional Fastening means are rigid and supportive in every working method and direction. guaranteed seat · of the clamping tool. That ·- Main feature of the. new facility exists in a inclined to the 'central axis ■ cut-out .a.

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Heinrich Ludwig Röhm
14a) Sontheim / Brenz

of the receiving pin b, the angle of inclination c in opposite direction to that of the receiving cone d runs and in a in the chuck body e radially adjustable pressure screw f, which when tightening is supported on the inclined cutout a. Milling a is above the middle one Pressure point g lengthened in both directions and offers leeway for the tightening tolerance the conical receptacle 4. Since the angle of inclination of the receiving pin b and the inclined cutout a below the pressure screw f pointed together, or diverge above, the pressure screw f has when it is pressed, the endeavor to evade or slide off the inclined cutout a and so the clamping tool e to tighten on the mounting cone d. A automatic loosening in any direction is completely excluded, on the contrary, the on Forces acting in the solution make the seat firmer. -

The cutout a on the pin can also have a different, perhaps semicircular or triangular shape, to provide a direct abutment against twisting. Likewise, the pressure screw f on the inner The end have a different shape, which favors a change in the pressure point when tightening will.

This additional fastening means has the advantage that the conical seat h above and below the milled cutout and thus all the advantages of the conical receptacle d are retained. It can be produced in a simple and inexpensive manner and can also be attached to existing machines and clamping tools without special aids. Also still exists

Claims (1)

• ί ■ · ~ ³ ~ Heinrich Ludwig Röhm '> 14a) Sontheim / Brenz F / 221898 * 20.3.5 Possibility of using any normal clamping device to put on the receiving pin. Protection claims ι Attachment of drill chucks (e) to machine spindles with conical mounting pin (b), thereby characterized in that the receiving pin (b), has a cutout (a) running obliquely to the central axis, the angle of inclination (c), runs in the opposite direction to that of the receiving cone (d) and there is one in the chuck body (e) radially adjustable pressure screw (f) slidably supported on the cutout (a) « Attachment of drill chucks (e) to machine spindles with a conical receiving pin (b) according to claim 1 characterized in that the cutout (a) is limited in the longitudinal direction is that the receiving pin (b) at both ends ^ n still has a closed system (h) in the receiving cone (d). Attachment of drill chucks (e) to machine spindles with conical mounting pins (b), according to claim 1 and 2 characterized in that that the pressure screw (f) is spherical at the inner end or a ball is used as a pressure piece is.