Chucks or sockets – With fluid-pressure actuator – Socket type
Patent
1975-02-24
1976-12-28
Simpson, Othell M.
Chucks or sockets
With fluid-pressure actuator
Socket type
29 26A, 279 82, 408 35, 408238, B23B 3112
Patent
active
039997693
ABSTRACT:
A tool holder for machine tools particularly adapted for use in turret structures having a plurality of retainers for holding a plurality of such tool holders each carrying a different tool such as a drill, tap, reamer or other metal working tool. The disclosure relates to a mechanically actuated tool holder having mechanical locking means adapted to snap into annular retainers in a turret structure of a mechanical tool and wherein locking means alternately is operable to hold the tool holder in the turret retainer ring and to lock the tool holder onto an annular ledge of a stub means carried by a rotatable and reciprocable machine tool driving spindle. The structure being such that axial movement of the spindle causes said stub to pass into a recess in the tool holder body and to actuate detents so as to release the locking members to engage an annular ledge on the stub and thereby lock the tool holder body onto the stub and whereby inward movement of the locking members permits an annular sleeve to move axially of a tool holder and into surrounding relation therewith and to hold outer portions of the locking members inward so as to maintain locking engagement of the locking members with the annular ledge on the aforementioned stub carried by the tool driving spindle. The aforementioned sleeve being spring loaded so as to move into surrounding relation with the tool holder body and around the outer radially extending portions of the locking members; the sleeve also being actuated axially when engaged with the aforementioned turret retainer rings so as to uncover the outer ends of the locking members and to allow spring loaded detents to force the said locking members outward into locking engagement with an internal annular ledge of the aforementioned retainer ring structures. A recess in the tool holder body is concentric with its axis and a precisely fitted portion of the aforementioned stub makes a concentric precision fit with the tool holder body recess portion and an end of the spindle is precisely normal to its rotating axis and an end of the tool holder body is precisely normal to its axis of rotation and engageable with said end of said spindle and torque transmitting means interengages the tool holder body on the spindle so as to provide a rotary drive for the tool holder by means of the spindle.
REFERENCES:
patent: 2868551 (1959-01-01), Avellone et al.
patent: 2990189 (1961-06-01), Beers
patent: 3599996 (1971-08-01), Holt
patent: 3612552 (1971-10-01), Brundler
patent: 3622169 (1971-11-01), Koch et al.
patent: 3722363 (1973-03-01), Hague et al.
Bayer Jack L.
Breitkopf Walter J.
Briggs W. R.
Simpson Othell M.
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