Tool turret
AssigneeIndex-Werke GmbH & Co. KG Hahn & Tessky
InventorsDietmar F. Hafla, Gunther Sommer
Life of this patent
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Abstract
Tool turret for NC automatic lathes comprising a turret body, in which a plurality of tool drive shafts arranged about a turret indexing axis are rotatably mounted, and comprising a main drive shaft coaxial to the turret indexing axis and in drive connection with the tool drive shafts via a miter gear arrangeed in the turret body, as well as a change-over gear for driving the tool drive shafts at different rotational speeds. In order to provide a space-saving and simple construction, the change-over gear is arranged in the turret body between the main drive shaft and the tool drive shaft and is designed as a gear adapted to be changed over only when at a standstill and having no idling state between the drive positions.
Claims9
A tool turret comprising a turret body having an indexing axis, a plurality of tool drive shafts arranged about said indexing axis and rotatably mounted in said body, a main drive shaft coaxial to said indexing axis and in drive connection with said tool drive shafts via a miter gear arranged in said turret body, the improvement comprising a change-over gear arranged in said turret body between said main drive shaft and said tool drive shafts and having at least two gear trains as well as a movable gear, means mounting said movable gear for movement between at least two drive positions to effect a tool drive shaft speed change, said movable gear being adapted to be in engagement with both said gear trains when it is between said two drive positions.
Dependencies are inferred from the claim text.