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US 4,061,061 AGranted
Automatic turret lathe
AssigneeIndex-Werke GmbH & Co. KG Hahn & Tessky
InventorsHeinrich Lahm, Dieter Gutbrod
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AssigneeIndex-Werke GmbH & Co. KG Hahn & Tessky
InventorsHeinrich Lahm, Dieter Gutbrod
Estimating the term…
Lathe apparatus is disclosed which in one form is an automatic turret lathe in which a single turret head is provided that can support a plurality of tools for performing machining operations on inside and outside surfaces of a workpiece carried on the live spindle of the lathe. The axis of the turret head is disposed at a preferred angular relationship to the axis of the live spindle, and the receiving or mounting surfaces for the inside and outside machining tools are disposed alternately around the axis of the turret head in planar arrangements that provide optimum operating conditions for utilizing the outside and inside machining tools on a single turret head. An attachment for preturning of workpieces is provided which can be mounted on the headstock to perform cutting operations wherein the cutting tool is moved in response to movement of the turret carriage of the turret head. Another attachment is provided to facilitate supporting of the workpiece during the preturning of the workpiece. The lathe apparatus also includes a tailstock construction for synchronous axial adjustment with the live spindle and also to permit pivotal movement of the tailstock relative to the live spindle. An improved automatic feed of bar stock is also provided.
A lathe comprising a headstock, a live spindle supported in said headstock for rotational and axial movement, said live spindle being hollow and having a spindle head at its forward end for clampingly engaging bar stock extending through the hollow-spindle, clamp actuating means associated said spindle head for actuating said spindle heads for clamping and releasing said bar stock, and a bar stock feed and guide mechanism extending into said hollow-spindle from the rearward end thereof, said mechanism including a guide piece for the bar stock and a supporting member adapted to be mounted on the rearward end of the bar stock and supported in said guide piece, said support member and guide piece being operably coupled together so that the support member will move relative to said guide piece only during axial displacement in the feed direction of the live spindle when said spindle head is clamped onto said bar stock.
Dependencies are inferred from the claim text.