Lathes with central headstock

Details Lathes with central headstock Lathes with central headstock

1981-12-03

1984-05-01

Bray, W. D.

Turning

Process of turning

82 3, B23B 1500

Patent

active

044454058

ABSTRACT:
Improvement to lathes with central headstock used for machining internally and/or externally a workpiece, and comprising a bed supporting a headstock on which two workpiece-clamping chucks are mounted for pivoting on the same spindle, said chucks being fitted symmetrically on two opposite faces of the headstock.
The means for transferring the workpieces from one chuck to the other are pivotally mounted on said headstock, said means being used in combination with workpiece- injecting and ejecting means situated coaxially to the spindle and opposite the two chucks of the headstock, respectively.
The invention finds an application in lathes with central headstock used for machining short workpieces.

REFERENCES:
patent: 1503111 (1924-07-01), Brown
patent: 1587261 (1926-06-01), White
patent: 3129506 (1964-04-01), Hain
patent: 3575302 (1971-04-01), Cafolla
patent: 3741048 (1973-06-01), Peuterbaugh
patent: 3827581 (1974-08-01), Inui
patent: 3851991 (1974-12-01), Walker
patent: 4013176 (1977-03-01), Lohneis et al.
patent: 4026171 (1977-05-01), Kubacki et al.
Metal Working Production, vol. 106, May 30, 1982.

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