Metal working – Plural diverse manufacturing apparatus including means for... – With turret mechanism
Patent
1997-07-25
1999-08-10
Briggs, William R.
Metal working
Plural diverse manufacturing apparatus including means for...
With turret mechanism
29 40, 74813L, B23Q 1608, B23B 2924
Patent
active
059339349
ABSTRACT:
A bidirectional indexing turret mechanism for machine tools having a housing for mounting to a machine tool, with a spline being fixed to the housing. An indexing shaft is mounted for rotation within the housing and has a rotary turret support fixed thereto for supporting a turret having machining tools for machining a workpiece. The rotary turret support is a rotary spline having spline teeth positioned for registry with the teeth of the fixed spline. A locking spline is positioned about the indexing shaft and is movable to a locking position for locking engagement with the fixed and rotary splines and is movable to an unlocked position permitting rotation of said rotary turret support and the indexing shaft. A shaft driver having splined engagement with the indexing shaft is in positioning engagement with the locking spline and is movable linearly and rotatably by a roller driver supporting a plurality of drive rollers. The roller driver defines a gear which is driven by a transmission that is in turn driven by the output shaft of a bidirectional motor. A stopping pin is located within the housing and is selectively driven by a solenoid responsive to a positioning encoder for selectively stopping indexing rotation of the indexing shaft when a desired rotary location of the indexing shaft has been achieved. Precision axial location of the indexing shaft within the housing and precision force transmission of the roller driver to the shaft driver and locking spline is achieved by adjustment devices and disc springs.
REFERENCES:
patent: 5067371 (1991-11-01), Sauterell
patent: 5226869 (1993-07-01), Thumm
patent: 5632075 (1997-05-01), De Bernardi et al.
patent: 5682658 (1997-11-01), Roseliep
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