Frictionally clamped tool and holder

Details Frictionally clamped tool and holder Frictionally clamped tool and holder

1998-10-21

2000-04-25

Pitts, Andrea L.

Cutters, for shaping

Rotary cutting tool

Including holder having seat for inserted tool

407 40, 407 54, 279 208, 411214, 411410, B26D 112, F16B 3904, F16B 2300

Patent

active

060536705

ABSTRACT:
In a modular system (10), with a holder part (12) for clamping in a spindle of a turning machine and a machining tool (14) attached interchangeably to this, the machining tool (14) has a hollow cylindrical shaft part (18) which overlaps a receiving mandrel (20) on the holder part (12) and is fixed to the holder part (12) by means of a screw device (28, 30) mounted on the holder part (12) and generating a tension or compression force via a tension or compression rod (22) running through the holder part (12) and the receiving mandrel (20). The end of the tension or compression rod (22) facing the machining tool (14) is expanded and under the effect of the tension or compression force leads to an expansion of the receiving mandrel (20) such that the peripheral surface (42) of the receiving mandrel (20) and the inner surface (44) of the shaft part (18) are clamped against each other to form a friction connection.

REFERENCES:
patent: 881691 (1908-03-01), Hughes
patent: 1295873 (1919-03-01), Dodds
patent: 2084801 (1937-06-01), Hall
patent: 3131946 (1964-05-01), Newhouser
patent: 3144293 (1964-08-01), De Smidt
patent: 5599146 (1997-02-01), Scheer

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