Patent · US Expired

Face driver for centering and driving workpieces chucked in a lathe

US4677885A · kind A · utility

15Cited by

2References

15Claims

0Family size

Assignees

Sandvik Kosta GmbH · DE
SMW Schneider & Weisshaupt GmbH · DE

Inventors

Herbert Schmid · Gmunden, AT
Karl Hiestand · Pfullendorf, DE

Key dates

Filing date	May 15, 1986
Grant date	Jul 7, 1987
Priority date	—
Expiry date	May 15, 2006

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T279/25
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A face driver for centering and driving a workpiece to be chucked in a lathe comprises a support provided with a dead center member and several driving pins around the dead center member so as to be movable and pressable against the workpiece by a compression member acting against a pressure plate, the pressure plate is retained so as to be floating in the axial directions of the support, and it has parts or arms associated with the driving pins which are elastically deformable. This causes squareness errors of the workpiece to be chucked to be compensated for automatically at low structural cost.

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