Patent · US Active

Method and device for machining elongate workpieces that are not rotationally symmetrical in the form of turbine blades

US9498861B2 · kind B2 · utility

2Cited by

5References

7Claims

0Family size

Assignee

Starrag Ag · CH

Inventors

Horst Keller · Wilhelmsfeld, DE
Roland Geiger · Rorschacherberg, CH

Key dates

Filing date	Sep 20, 2011
Grant date	Nov 22, 2016
Priority date	—
Expiry date	Jun 4, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T82/10
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

In a method and a device for machining an elongate workpiece that is not rotationally symmetrical in the form of turbine blades, the workpiece is supported by a steady rest that has clamping elements for clamping the workpiece on the cross-section thereof that is not rotationally symmetrical. After clamping the workpiece, the steady rest moves with its open clamping elements along the longitudinal axis of the workpiece into a supporting position. During movement of the steady rest into the supporting position and/or while the supporting position of the steady rest is being changed, a collision between the open clamping elements of the steady rest and the workpiece is prevented by a program-controlled rotation of a rotary part of the steady rest.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.