Patent · US Active

Clamping device

US9931700B2 · kind B2 · utility

0Cited by

3References

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	Apr 3, 2018
Priority date	—
Expiry date	Nov 17, 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, including 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 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. The spring assembly has a minimum of one spring unit with a plurality of flexible spring members disposed between a first and a second spring holder, with the first and second spring holders being secured against torsion relative to the tension rod.

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