| 摘要 |
THE INVENTION PROVIDES A DEVICE FOR CONNECTING A WORKPIECE TO A MACHINING APPARATUS WITH HIGH PRECISION. THE DEVICE COMPRISES A FIRST (1) AND SECOND COUPLING MEMBER (3) COAXIALLY ARRANGED WITH REFERENCE TO A COMMON CENTRAL AXIS.A DRIVING MEMBER (6) IS CONNECTED TO ONE OF THESE TWO COUPLING MEMBERS (1,3).THE OTHER ONE OF THE COUPLING MEMBERS (1,3) IS PROVIDED WITH AT LEAST TWO DRIVING PINS (7,8) PROTRUDING FROM ONE FACE (9) THEREOF TOWARD SAID DRIVING MEMBER (6).THE DRIVING MEMBER (6) WHICH IS TORSIONALLY FIXED TO THE OTHER COUPLING MEMBER (1,3), I.E. THE ONE WITHOUT THE DRIVING PINS (7,8), MAY ALSO BE INTEGRALLY FORMED WITH SAID OTHER COUPLING MEMBER.THE DRIVING MEMBER (6) IS EQUIPPED WITH A PLURALITY OF APERTURES (19,20) WHICH ARE CORRESPONDINGLY ARRANGED WITH REFERENCE TO THE DRIVING PINS (7,8) PROVIDED ON THE FIRST COUPLING MEMBER (1).THE OUTER SURFACES OF THE DRIVING PINS (7,8) HAVE AT LEAST PARTIALLY A CONICAL SHAPE, WHEREBY THE EDGES (21) OF THE APERTURES IN THE DRIVING MEMBER (6) AT LEAST PARTIALLY ENGAGE OR ENCOMPASS THISS CONICAL OUTER SURFACE PORTIONS (10,11) OF THE DRIVING PINS, WHEN THE COUPLING DEVICE IS ENGAGED.(FIG 1)
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