Toolhead assembly for machine tools

Details Toolhead assembly for machine tools Toolhead assembly for machine tools

1995-07-19

1997-05-20

Briggs, William R.

Gear cutting, milling, or planing

Milling

Cutter spindle or spindle support

408129, 408130, 409232, B23C 106, B23B 3900

Patent

active

056306857

ABSTRACT:
A toolhead assembly for a machine tool generally consisting of a housing supportable on the machine tool and having at least one elongated bore therein, a liner formed of a structural polymer material disposed in the bore, adhesively secured to the housing and having a cylindrical inner wall surface, a spindle shaft journal in the housing and disposed coaxially in the liner for axial displacement therein, the spindle shaft having a head section rigidly mounted on the spindle shaft and engagable in sliding relation to the liner inner wall to provide fluid chambers on either side thereof, means for injecting fluid under pressure selectively into the chambers for axially displacing the spindle shaft, means for spinning the spindle shaft about its axis and means for securing a tool bit to the spindle shaft.

REFERENCES:
patent: 2607197 (1952-08-01), Johnson
patent: 3774928 (1973-11-01), Hanak et al.
patent: 4362444 (1982-12-01), Watkins
patent: 4867618 (1989-09-01), Brohammer

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