Fixture for drilling sheets of fragile material, in particular, sheets of glass

1) A fixture (7) for drilling sheets (2) of fragile material, in particular sheets of glass, and which is connectable to a movable machining head (1) comprising a supporting structure (3) and a powered rotary member (4);

• the fixture (7) being characterized by comprising a supporting frame (10);
• connecting means (12) for connecting the supporting frame (10) to the supporting structure (3) of the machining head (1);
• a first (18) and at least a second (19) spindle for a first (18a) and a second (19a) drilling tool respectively, said spindles (18)(19) being connected to said supporting frame (10) to rotate about respective axes (20) parallel to each other, and being oriented in opposite directions with respect to the supporting frame (10), so that the cutting edges of the tools (18a)(19a) are located on opposite sides of the supporting frame (10);
• and motion transmission means (22) comprising an input member (23) connectable to said rotary member (4), and which transmit motion to both said first (18) and said second (19) spindle.