Combined machining apparatus and machining method by using the s

Details Combined machining apparatus and machining method by using the s Combined machining apparatus and machining method by using the s

1998-10-13

2000-08-08

Hughes, S. Thomas

Metal working

Plural diverse manufacturing apparatus including means for...

Type of machine

409199, 82106, B23B 700

Patent

active

060982586

ABSTRACT:
A combined machining apparatus for turning (lathing) and broaching a workpiece is disclosed which includes a work head (4) for carrying a workpiece (12) to be machined while in rotation as clamped thereon, and one or more broaching unit (2) disposed proximal to the work head (4) and moved by a broaching unit feeder (6) longitudinally of the workpiece (12). A broach head (2c), mounted on the broaching unit (2), is moved towards and away from the workpiece (12) by a broach head feeder (7). Mounted on the broach head (2c) in the apparatus (1) is a broaching tool (10) which carries rough machining tips (10e) and finish machining tips (10f) removably on an outer peripheral surface of the broaching tool (10) for turning or lathing and broaching the workpiece (12). A broach drive (8) is operable under an NC to rotate the broaching tool (10). The apparatus (1) is further provided with a broach holding device (11) received in the broach head (2c) and designed to hold the broaching tool (10) fixed against rotation when the workpiece (12) is turned or lathed therewith and to permit the broaching tool (10) to be rotated and to hold it rotated with the broach drive (8) when the workpiece (12) is broached therewith. A method of machining, by turning or lathing and broaching, a workpiece (12), by using a combined machining apparatus as described is also disclosed.

REFERENCES:
patent: 2008793 (1994-03-01), Yakoviev
patent: 4054975 (1977-10-01), Lundstrom
patent: 5885199 (1999-03-01), Shao
patent: 5947805 (1999-09-01), Van Osenbruggen

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