Turning – Lathe – Attachment
Patent
1990-03-19
1991-10-22
Schwartz, Larry I.
Turning
Lathe
Attachment
279 1S, 279 1E, 279 51, B23B 3120, B23B 1312
Patent
active
050584677
ABSTRACT:
A collet stop for positively positioning a workpiece within a collet of a spindle in a multiple spindle lathe is disclosed. An adapter block having a counterbore is secured within the spindle. The collet stop is provided with a body portion, which is adapted to be engaged by the workpiece during use, and a neck portion. The neck portion is sized to be received within the counterbore of the adapter block. A bore is formed through the neck portion. The end of the neck portion is split to define a plurality of flexible fingers. A threaded fastener extends through the bore into cooperation with a tapered lock nut. By tightening the threaded fastener, the lock nut is drawn within the neck portion so as to spread the fingers radially outwardly into frictional engagement with the adapter block counterbore. A plurality of differently sized collet stops are provided for workpieces having different sizes or shapes. The collet stop is quickly and easily changeable with similar collet stops of varying size.
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Handbook for Operators--Acme-Gridley Multiple Spindle Bar Machines (1980).
Fuller Norman M.
Hoff Steven R.
Carroll Kevin J.
Dana Corporation
Schwartz Larry I.
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