Patent · US Active

Clamping device

US9962772B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

Ott-Jakob Spanntechnik GmbH · DE

Inventors

Josef Greif · Friesenried, DE
Peter Mohr · Waiblingen, DE
Bartholomäus Reisacher, Jr. · Buchloe, DE

Key dates

Filing date	Oct 27, 2016
Grant date	May 8, 2018
Priority date	—
Expiry date	Nov 26, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23B2260/136
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A clamping device for clamping a workpiece or a tool or a tool holder to a machine component of a machine tool, having an axially movable tension rod, a clamping assembly which can be moved by the tension rod between a clamped position and a released position, a spring assembly dedicated to the tension rod with a plurality of series-connected spring units for generating the clamping and draw-in force of the clamping assembly, and a releasing unit by which the clamping assembly can be moved by the tension rod against the force of the spring assembly into the released position. To ensure the most uniform load possible, the axial spring deflection of the spring units is limited by a stop when the spring assembly is compressed.

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