公开(公告)号：US20170259343A1

公开(公告)日：2017-09-14

申请号：US15605467

申请日：2017-05-25

Applicant: Index-Werke GmbH & Co. KG Hahn & Tessky

Inventor： Karl-Heinz Schumacher

IPC: B23B13/10 ,  B23B13/04 ,  B23B13/12 ,  B23B5/16

CPC classification number: B23B13/10 ,  B23B5/16 ,  B23B13/04 ,  B23B13/12

Abstract: In order for a bar feeding device comprising at least one bar guide for feeding at least one item of bar stock to at least one workpiece spindle of a lathe, and a machining unit, for producing an end contour at one end of the item of bar stock, which enables gripping of the end by means of a collet chuck in the bar guide to be improved such that said bar feeding device operates as efficiently as possible and in particular reloading of items of bar stock into the at least one bar guide can be performed as efficiently as possible and within a short time, it is proposed that the bar feeding device has a bar loading magazine that is rotatable about a magazine axis and comprises more than two bar guides that are disposed about the magazine axis in a magazine drum, and that the bar feeding device comprises a buffer storage unit that is disposed between the machining unit and the bar loading magazine and stores a plurality of premachined items of bar stock that are provided with the end contour.