The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 1988
Filed:
Mar. 26, 1987
Helmut F Link, Aichwald, DE;
Edgar Schinke, Aichwald-Aichschiess, DE;
Index-Werke Komm.-Ges. Hahn & Tessky, Esslingen, DE;
Abstract
Multiple-spindle lathe with a drive shaft which is rotatably and longitudinally displaceably mounted in a headstock, a spindle carrier which is mounted on the headstock for rotation about an indexing axis, and several work spindles which are rotatably mounted in the spindle carrier and comprise at their outer ends chucks and at their inner ends coupling elements for coupling one respective work spindle with the drive shaft. To enable retightening of the chuck of a work spindle which is driven to machine a workpiece, also while the workpiece is being machined, the work spindles are provided with double-acting pressure medium cylinders and the drive shaft with pressure medium lines, the drive shaft head and the inner work spindle ends form pressure medium coupling halves which in the case of the work spindle to be driven can be coupled by forward displacement of the drive shaft, and a pressure medium connecting device which can be coupled with the pressure medium coupling half of a non-driven work spindle is provided for actuation of the chuck thereof.