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US 5,758,999 AGranted
Hydraulically powered spindle for working metals and composite materials
OwnerSamuel C. Geiseinventor
Life of this patent
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Abstract
An apparatus for machining is disclosed having a hydraulic motor directly coupled to a tool spindle. Mounting means are provided for mounting the hydraulic motor and spindle to a machine tool. A source of hydraulic fluid is provided at a pressure that varies directly with load.
Claims5
A metal and composite material working system comprising:
- (1) a source of hydraulic fluid provided at a pressure that varies directly with load, said pressure having an upper limit,
- (2) a hydraulic motor having a powered output shaft,
- (3) a spindle having a spindle shaft directly coupled to said powered output shaft, said spindle shaft rotatably supported in a housing rigidly coupled to said motor, said spindle shaft and said housing forming a spindle assembly resistant to radial and axial loads applied to said spindle shaft,
- (4) a metal working tool coupled to said spindle shaft and adapted for rotatably engaging said workpiece,
- (5) mounting means for mounting said hydraulic motor and spindle assembly to a machine tool in movable, accurately controllable relation with said workpiece so that said metal working tool accurately engages said workpiece, with said pressure being maintained below said upper limit.
2 more elements
Dependencies are inferred from the claim text.